CN113800908A - Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof - Google Patents
Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof Download PDFInfo
- Publication number
- CN113800908A CN113800908A CN202110989647.1A CN202110989647A CN113800908A CN 113800908 A CN113800908 A CN 113800908A CN 202110989647 A CN202110989647 A CN 202110989647A CN 113800908 A CN113800908 A CN 113800908A
- Authority
- CN
- China
- Prior art keywords
- dielectric ceramic
- microwave
- microwave dielectric
- preparation
- hours
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910010293 ceramic material Inorganic materials 0.000 title description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 8
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910020101 MgC2 Inorganic materials 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Inorganic materials O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000005182 global health Effects 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3294—Antimony oxides, antimonates, antimonites or oxide forming salts thereof, indium antimonate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/76—Crystal structural characteristics, e.g. symmetry
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a dielectric constant epsilon between 20 and 27, a product (Qxf) of a quality factor and a resonant frequency between 17,000 and 29,000GHz, and a temperature coefficient (tau) of the resonant frequencyf) A novel double perovskite structure microwave dielectric ceramic at-77 to-79 ppm/DEG C and a preparation method thereof, belonging to the technical field of microwave dielectric ceramic preparation, wherein the chemical composition of the microwave dielectric ceramic is La3Mg2MO9(M ═ Nb, Sb, Ta). The microwave dielectric ceramic with the double perovskite structure disclosed by the invention is simple in chemical composition and preparation process, and can be applied to the manufacture of microwave devices such as dielectric resonators, microwave integrated circuit substrates and the like.
Description
Technical Field
The invention relates to a dielectric ceramic material of microwave components such as a dielectric substrate, a resonator, a waveguide loop and the like used at microwave frequency and a preparation method thereof.
Background
With the rapid development of modern communications such as 5G communications technology, communications network technology and satellite communications, the demands for miniaturization, low loss, low cost and high stability of modern communications technology materials are further increased. The microwave dielectric ceramic is used as a core component of modern communication technology, and is widely applied to mobile communication, satellite communication, global health and the like as microwave electronic components such as a dielectric resonator/filter, a dielectric antenna, a dielectric guided wave loop and the like due to excellent dielectric constant, high quality factor and low resonant frequency temperature coefficientIn microwave communication systems such as a satellite positioning system, Bluetooth equipment, a wireless local area network and the like, designing and exploring a novel microwave dielectric ceramic material with excellent microwave dielectric properties is a key for the development of modern communication technology. A has been reported so far3MM'2O9(A ═ Ca, Sr, Ba; M ═ Ni, Mg, Zn, Co; M ═ Nb, Ta, etc.) perovskite structure oxide ceramics exhibit excellent microwave dielectric properties, with hexagonal phase Ba3ZnTa2O9Most typically, the dielectric constant is-30, the temperature coefficient of the resonant frequency is 0 + -0.5 ppm/deg.C, and the quality factor Qxf is-168,000 GHz. Furthermore, in the double perovskite structure La3M2M'O9(M ═ Mg, Ni, Co; M ═ Nb, Ta, Sb) oxides, only La3Mg2TaO9The composition is studied about the dielectric constant and the electrical properties at a frequency of 100KHz, the dielectric constant is 22.7, the dielectric loss is 0.004, and the temperature coefficient of the resonance frequency is 98 +/-1 ppm/DEG C. Currently, La is lacking for double perovskite3M2M'O9The microwave dielectric properties of (M ═ Mg, Ni, Co; M ═ Nb, Ta, Sb) in the microwave band (300MHz to 300 GHz) were investigated.
Disclosure of Invention
The invention aims to provide a novel medium-dielectric-constant double perovskite microwave dielectric ceramic material and a preparation method thereof.
The invention relates to a medium dielectric constant double perovskite microwave dielectric ceramic material which comprises the following chemical components: la3Mg2MO9Where M ═ Nb, Sb, Ta.
The microwave dielectric ceramic with the double perovskite structure is prepared by the following steps:
(1) la with the purity of 99.99 percent2O3Pre-burning the MgO raw material for 3 hours at 1000 ℃ in an atmosphere to remove water and carbon dioxide;
(2) la with the purity of 99.99 percent2O3,MgC2O4·2H2O or MgO, Nb2O5,Sb2O5,Ta2O5Dried powder according to La3Mg2MO9Weighing and batching the chemical formula (M ═ Nb, Sb and Ta);
(3) mixing the raw materials in the step (2), wet-type hand-milling for 1-2 hours by using absolute ethyl alcohol as a solvent, drying, and presintering for 10 hours at 1450 ℃ in an atmosphere;
(4) adding a binder into the powder prepared in the step (3), mixing, then pressing and forming, and finally sintering for 10 hours at 1530-1580 ℃ in an atmospheric atmosphere; the binder adopts a polyvinyl alcohol solution with the mass concentration of 5%, and the dosage of the binder accounts for 2% of the total mass of the powder.
The microwave dielectric ceramic with the double perovskite structure prepared by the invention has simple preparation process, high quality factor (Q multiplied by f-17,000-29,000 GHz) and medium dielectric constant (29-35), and the temperature coefficient of resonance frequency is-77 to-79 ppm/DEG C, so that the microwave dielectric ceramic can meet the application requirements of communication electronic elements such as medium dielectric constant type dielectric resonators, filters and the like.
Detailed Description
Table 1 shows 3 specific examples of the invention and their microwave dielectric properties. The preparation method is as described above, phase analysis is carried out on the sintered ceramic sample by the powder X-ray diffraction method, FIG. 1 is the X-ray diffraction patterns of examples 1, 2 and 3, which show that a single double perovskite structure phase is formed, and FIG. 2 is a schematic diagram of the crystal structure of examples 1, 2 and 3 projected along the [010] direction, which shows that two octahedrons in the structure are connected together at the same vertex, and lanthanum atoms are in the octahedral framework channel. The dielectric properties of the microwaves were evaluated by the cylindrical dielectric resonator method.
The present invention is by no means limited to the above embodiments. The composition, the upper limit and the lower limit of the sintering temperature and the range value can realize the invention, and the embodiments are not listed.
The invention can be widely used for manufacturing microwave devices such as various dielectric substrates, resonators/filters and the like, and can meet the technical requirements of systems such as mobile communication, satellite communication, global satellite positioning systems, Bluetooth equipment, wireless local area networks and the like.
Table 1:
drawings
FIG. 1 is an X-ray diffraction pattern of 3 examples of the present invention
FIG. 2 is a schematic diagram of the crystal structure projected along [010] direction of 3 embodiments of the present invention.
Claims (2)
1. The invention discloses a dielectric constant epsilon between 20 and 27, a product (Qxf) of a quality factor and a resonant frequency between 17,000 and 29,000GHz, and a temperature coefficient (tau) of the resonant frequencyf) A novel double perovskite structure microwave dielectric ceramic at-77 to-79 ppm/DEG C and a preparation method thereof, belonging to the technical field of microwave dielectric ceramic preparation, wherein the chemical composition of the microwave dielectric ceramic is La3Mg2MO9(M＝Nb,Sb,Ta)。
2. The microwave dielectric ceramic of claim 1 prepared by the steps of:
(1) la with the purity of 99.99 percent2O3Pre-burning the MgO raw material for 3 hours at 1000 ℃ in an atmosphere to remove water and carbon dioxide;
(2) la with the purity of 99.99 percent2O3,MgC2O4·2H2O or MgO, Nb2O5,Sb2O5,Ta2O5Dry powder according to La3Mg2MO9Weighing and batching the chemical formula (M ═ Nb, Sb and Ta);
(3) mixing the raw materials in the step (2), wet-type hand-milling for 1-2 hours by using absolute ethyl alcohol as a solvent, drying, and presintering for 10 hours at 1450 ℃ in an atmosphere;
(4) adding a binder into the powder prepared in the step (3), mixing, then pressing and forming, and finally sintering for 10 hours at 1530-1580 ℃ in an atmospheric atmosphere; the binder adopts a polyvinyl alcohol solution with the mass concentration of 5%, and the dosage of the binder accounts for 2% of the total mass of the powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989647.1A CN113800908A (en) | 2021-08-26 | 2021-08-26 | Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989647.1A CN113800908A (en) | 2021-08-26 | 2021-08-26 | Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113800908A true CN113800908A (en) | 2021-12-17 |
Family
ID=78941845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110989647.1A Pending CN113800908A (en) | 2021-08-26 | 2021-08-26 | Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113800908A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849895A (en) * | 2022-12-23 | 2023-03-28 | 吉林大学 | Tantalum-magnesium-lanthanum-modified bismuth ferrite-based dielectric energy storage material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5788876A (en) * | 1994-11-30 | 1998-08-04 | U.S. Philips Corporation | Complex substituted lanthanum-lead-zirconium-titanium perovskite, ceramic composition and actuator |
| JPH1171173A (en) * | 1996-10-25 | 1999-03-16 | Ngk Spark Plug Co Ltd | Dielectric material and method of manufacturing the same |
| CN1524792A (en) * | 2003-02-28 | 2004-09-01 | 新加坡纳米材料科技有限公司 | A method for preparing various crystalline perovskite compound powders |
| CN1672284A (en) * | 2002-08-01 | 2005-09-21 | 圣安德鲁斯大学董事会 | Perovskite-based fuel cell electrodes and thin films |
| CN106830923A (en) * | 2017-03-24 | 2017-06-13 | 桂林理工大学 | High quality factor microwave dielectric ceramic Bi3Y2Ga3O12 |
| CN113292997A (en) * | 2021-05-25 | 2021-08-24 | 常熟理工学院 | Double-ordered composite perovskite red fluorescent powder and preparation method thereof |
-
2021
- 2021-08-26 CN CN202110989647.1A patent/CN113800908A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5788876A (en) * | 1994-11-30 | 1998-08-04 | U.S. Philips Corporation | Complex substituted lanthanum-lead-zirconium-titanium perovskite, ceramic composition and actuator |
| JPH1171173A (en) * | 1996-10-25 | 1999-03-16 | Ngk Spark Plug Co Ltd | Dielectric material and method of manufacturing the same |
| CN1672284A (en) * | 2002-08-01 | 2005-09-21 | 圣安德鲁斯大学董事会 | Perovskite-based fuel cell electrodes and thin films |
| CN1524792A (en) * | 2003-02-28 | 2004-09-01 | 新加坡纳米材料科技有限公司 | A method for preparing various crystalline perovskite compound powders |
| CN106830923A (en) * | 2017-03-24 | 2017-06-13 | 桂林理工大学 | High quality factor microwave dielectric ceramic Bi3Y2Ga3O12 |
| CN113292997A (en) * | 2021-05-25 | 2021-08-24 | 常熟理工学院 | Double-ordered composite perovskite red fluorescent powder and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| AKBAS MEHMET A. ET AL.: "Structure and dielectric properties of the Ba(Mg1/3 Nb2/3 )O3 –La(Mg2/3 Nb1/3 )O3 System", 《 J AM CERAM. SOC》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849895A (en) * | 2022-12-23 | 2023-03-28 | 吉林大学 | Tantalum-magnesium-lanthanum-modified bismuth ferrite-based dielectric energy storage material and preparation method thereof |
| CN115849895B (en) * | 2022-12-23 | 2023-09-29 | 吉林大学 | Tantalum-magnesium-lanthanum modified bismuth ferrite-based dielectric energy storage material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103145420B (en) | Low-temperature sinterable vanadate microwave dielectric ceramic LiMVO4 and its preparation method | |
| CN103396120B (en) | Low-temperature sinterable molybdenum-based microwave dielectric ceramic Ba4Li2Mo2O11 | |
| CN103496964B (en) | Low-temperature sinterable microwave dielectric ceramic Ca3Bi(PO4)3 and its preparation method | |
| CN104003722B (en) | Low temperature sintering ultralow dielectric microwave dielectric ceramic Li 3alV 2o 8and preparation method thereof | |
| CN103496978B (en) | Low-temperature sintering microwave dielectric ceramic Ba2BiV3O11 and preparation method thereof | |
| CN113896530B (en) | Modified NiO-Ta with stable temperature 2 O 5 Microwave-based dielectric ceramic material and preparation method thereof | |
| CN108147809B (en) | Medium-low temperature sintered barium-titanium series microwave dielectric material and preparation method thereof | |
| CN119430928A (en) | A vanadium-based zircon microwave dielectric ceramic and a preparation method thereof | |
| CN103496973B (en) | Low-temperature sinterable microwave dielectric ceramic BiTiNbO6 and its preparation method | |
| CN103496979B (en) | Low-temperature sinterable microwave dielectric ceramic La3Cu2VO9 and its preparation method | |
| CN103467095B (en) | Low-temperature sinterable microwave dielectric ceramic SrCuV2O7 and its preparation method | |
| CN103496981B (en) | Low temperature sintering temperature stable microwave dielectric ceramic Bi14W2O27 and its preparation method | |
| CN110229004B (en) | A kind of low temperature sintering microwave dielectric ceramic material and preparation method thereof | |
| CN103539449B (en) | Low temperature sintering microwave dielectric ceramic BiNbW 2o 10and preparation method thereof | |
| CN103319177B (en) | Low-temperature sinterable microwave dielectric ceramic Ba3WTiO8 and its preparation method | |
| CN113800908A (en) | Medium dielectric constant double perovskite microwave dielectric ceramic material and preparation method thereof | |
| CN106587991B (en) | A kind of low temperature sintering composite microwave dielectric ceramic material and preparation method thereof | |
| CN104003719B (en) | Low-temperature sinterable microwave dielectric ceramic LiTi2V3O12 and its preparation method | |
| CN103553613A (en) | Low-temperature sinterable microwave dielectric ceramic BaV2Nb2O11 and its preparation method | |
| CN103332932A (en) | Low-temperature sinterable vanadate microwave dielectric ceramic BaZnV2O7 and its preparation method | |
| CN103496969B (en) | Low temperature sintering temperature stable microwave dielectric ceramic Bi14WO24 and its preparation method | |
| CN103449814B (en) | Low-temperature-sintering available microwave dielectric ceramic Sr2WCuO6 | |
| CN113773054A (en) | A kind of microwave dielectric ceramic material with high Q×f gallate garnet structure and preparation method thereof | |
| CN103922717B (en) | Low temperature sintering microwave dielectric ceramic Li 2nb 5p 3o 21and preparation method thereof | |
| CN103467091B (en) | Low-temperature sinterable microwave dielectric ceramic Ba4Nb2V2O14 and its preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211217 |