JPH0688841B2 - SiC ceramics composite - Google Patents
SiC ceramics compositeInfo
- Publication number
- JPH0688841B2 JPH0688841B2 JP15455190A JP15455190A JPH0688841B2 JP H0688841 B2 JPH0688841 B2 JP H0688841B2 JP 15455190 A JP15455190 A JP 15455190A JP 15455190 A JP15455190 A JP 15455190A JP H0688841 B2 JPH0688841 B2 JP H0688841B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- sic ceramics
- sic
- composite
- metal
- 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.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 title claims description 57
- 239000002131 composite material Substances 0.000 title claims description 24
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 239000010953 base metal Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000005219 brazing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 claims 2
- 150000002739 metals Chemical class 0.000 description 5
- 229910017945 Cu—Ti Inorganic materials 0.000 description 3
- 229910010067 TiC2 Inorganic materials 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 229910000883 Ti6Al4V Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910021484 silicon-nickel alloy Inorganic materials 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Description
【発明の詳細な説明】 （Ａ）〔産業上の利用分野〕 本発明は、高温条件下で優れた高い耐熱性と高機械的強
度を示す、SiCセラミックスとSiCセラミックス、あるい
はSiCセラミックスと金属を接合したSiCセラミックス複
合体に関するものである。DETAILED DESCRIPTION OF THE INVENTION (A) [Industrial field of application] The present invention provides SiC ceramics and SiC ceramics, or SiC ceramics and metals that exhibit excellent high heat resistance and high mechanical strength under high temperature conditions. The present invention relates to bonded SiC ceramic composites.
（Ｂ）〔従来の技術〕 従来、SiCセラミックスとSiCセラミックス、またはSiC
セラミックスと金属を接合するには、Ag-Cu-Ti合金等が
使用されていたが、これらの合金により接合した場合
は、TiCはSiCセラミックスと合金の界面に、薄く生成さ
れるのみで、生成されるTiCの含有量も数％以下と少な
い。(B) [Prior art] Conventionally, SiC ceramics and SiC ceramics, or SiC
Ag-Cu-Ti alloys were used to bond ceramics and metals, but when bonded with these alloys, TiC is only formed thinly at the interface between the SiC ceramics and the alloy. The content of TiC to be processed is small, less than several percent.
そのため、TiCを合金中に満遍無く拡散せしめることは
困難であり、TiC分散による強度の向上をせしめること
はできない。Therefore, it is difficult to evenly diffuse TiC in the alloy, and it is not possible to improve strength by dispersing TiC.
従って、高温条件下での、高い耐熱性と高機械的強度を
有するSiCセラミックス複合体を、得ることは困難であ
った。Therefore, it was difficult to obtain a SiC ceramics composite having high heat resistance and high mechanical strength under high temperature conditions.
（Ｃ）〔発明が解決しようとする問題点〕 本発明は、従来のAg-Cu-Ti合金による接合では困難であ
った、高い耐熱性と高機械強度を有するSiCセラミック
スの、高い耐熱性と高機械的強度を損じることなく、高
温条件下においても、優れた耐熱性と高機械的強度を有
するSiCセラミックスとSiCセラミックス、またはSiCセ
ラミックスと金属との複合体を、常に均一に、かつ、経
済的に得ようとするものである。(C) [Problems to be Solved by the Invention] The present invention provides high heat resistance and high heat resistance of SiC ceramics having high heat resistance and high mechanical strength, which are difficult to achieve by the conventional joining using Ag-Cu-Ti alloy. Even without compromising high mechanical strength, even under high temperature conditions, SiC ceramics and SiC ceramics that have excellent heat resistance and high mechanical strength, or composites of SiC ceramics and metal are always uniformly and economically. Is what you want to get.
（Ｄ）〔問題点を解決するための手段〕 本発明は、第１図に示すように、SiCセラミックス１とS
iCセラミックス１を、TiC2を体積比で20〜80％を含むNi
合金３により、真空または不活性ガス雰囲気中で、Ni合
金３の融点近傍で、一体に複合化したSiCセラミックス
同士の複合体である。(D) [Means for Solving Problems] In the present invention, as shown in FIG. 1, SiC ceramics 1 and S are used.
iC ceramics 1 is Ni containing 20 to 80% by volume of TiC2.
Alloy 3 is a composite of SiC ceramics that are integrally composited in the vicinity of the melting point of Ni alloy 3 in a vacuum or an inert gas atmosphere.
また、第３図に示すように、SiCセラミックス１と、長
周期率表の第４族Ti・Zr・Hfまたは第５族Ｖ・Nb・Taの
内の何れかの金属４、またはそれらの合金の内何れかの
金属４とを、TiC2を体積比で20〜80％を含むNi合金３に
より、真空または不活性ガス雰囲気中で、Ni合金３の融
点近傍で、一体に複合化したSiCセラミックスと金属の
複合体である。In addition, as shown in FIG. 3, SiC ceramics 1 and any metal 4 of Ti, Zr, Hf of Group 4 or V, Nb, Ta of Group 5 of the long periodic table, or an alloy thereof. SiC ceramics in which any one of the above metals 4 and TiC2 in a volume ratio of 20 to 80% is integrated in the vicinity of the melting point of the Ni alloy 3 in a vacuum or an inert gas atmosphere. Is a composite of metal.
更に、第５図に示すように、SiCセラミックス１と、長
周期率表の第４族Ti・Zr・Hfまたは第５族Ｖ・Nb・Taの
内の何れかの金属４、またはそれらの合金の内の何れか
の金属４とを、TiC2を体積比で20〜80％を含むNi合金３
により、真空または不活性雰囲気中で、Ni合金３の融点
近傍で、一体に複合化してなるSiCセラミックス複合体
の金属面４を、耐熱Niろう材５により被接合ベース金属
６に接合一体化してなるSiCセラミックス１と被接合ベ
ース金属６との複合体である。Furthermore, as shown in FIG. 5, SiC ceramics 1 and any metal 4 of Group 4 Ti / Zr / Hf or Group 5 V / Nb / Ta in the long period table, or an alloy thereof. Ni alloy 3 containing 20 to 80% by volume of any one of the metals 4 and TiC2 in volume ratio
In this way, the metal surface 4 of the SiC ceramics composite, which is integrally compounded in the vicinity of the melting point of the Ni alloy 3 in a vacuum or an inert atmosphere, is bonded and integrated with the base metal 6 to be bonded by the heat resistant Ni brazing material 5. Is a composite of the SiC ceramics 1 and the base metal 6 to be joined.
本発明のSiCセラミックス複合体は、第１図の模式図に
示すように、SiCセラミックス１とSiCセラミックス１の
接合時、TiCが体積比で20〜80％含有するNi合金３によ
り、真空または不活性ガス雰囲気中で、Ni合金３の融点
近傍で接合し、複合体としたものである。As shown in the schematic view of FIG. 1, the SiC ceramics composite of the present invention has a vacuum or a vacuum when the SiC ceramics 1 and the SiC ceramics 1 are joined by the Ni alloy 3 containing 20 to 80% by volume of TiC. In the active gas atmosphere, the Ni alloy 3 was joined near its melting point to form a composite.
TiCを含有させるためにベースとなるNi合金としては、S
i10〜30mass％を含むNi-Si合金か、Al10〜30mass％を含
むNi-Al合金等を使用する。As a base Ni alloy for containing TiC, S
The Ni-Si alloy containing i10 to 30 mass% or the Ni-Al alloy containing Al10 to 30 mass% is used.
具体的な接合法としては、粒径数μｍのTiC粉末と粒径
数μｍのNi合金粉末を接合時TiCの含有率が20〜80％に
なるように混合後、有機バインダーを加えて混練し、 接合するSiCセラミックス１同士の間、または、SiCセラ
ミックス１とTi・Zr・Hf・Ｖ・Nb・Taの内何れかの金属
４、またはそれらの合金の内の何れかの金属４、例えば
Ti-6Al-4V、Nb-5Zr、Ta-0.5Zr等の内何れかの金属４と
の間に塗布し、真空または不活性ガス雰囲気中で、Ni合
金３の融点近傍で接合して、複合体とする。As a specific joining method, TiC powder with a particle size of several μm and Ni alloy powder with a particle size of several μm are mixed so that the content ratio of TiC during bonding is 20 to 80%, and then an organic binder is added and kneaded. , Between the SiC ceramics 1 to be joined, or any metal 4 of the SiC ceramics 1 and Ti, Zr, Hf, V, Nb, Ta, or any metal 4 of their alloys, for example,
It is applied between any of the metals 4 such as Ti-6Al-4V, Nb-5Zr, Ta-0.5Zr, etc., and bonded near the melting point of the Ni alloy 3 in a vacuum or an inert gas atmosphere to form a composite. The body.
または、SiCセラミックス１と反応して、Ni合金３中に
体積比でTiC20〜80％を生成せしめるNi合金、例えばTi2
0〜60mass％を含有するNi合金を、 例えば板状にしてSiCセラミックス１同士間、またはSiC
セラミックス１と長周期率表の第４族または第５族の内
の何れかの金属４、またはそれらの合金の内何れかの金
属４との間に挟持せしめて、真空または不活性ガス雰囲
気中で、Ni合金３の融点近傍で、接合時のTiCがNi合金
３中に体積比で20〜80％形成せしめるようにして接合、
複合化せしめたSiCセラミックス複合体である。Alternatively, a Ni alloy, such as Ti2, which reacts with the SiC ceramics 1 to produce 20 to 80% by volume of TiC in the Ni alloy 3.
Ni alloy containing 0 to 60 mass% is formed into a plate shape, for example, between SiC ceramics 1 or SiC
In a vacuum or an inert gas atmosphere by sandwiching it between the ceramics 1 and the metal 4 of any one of the groups 4 and 5 of the long period table, or the metal 4 of any of their alloys. Then, in the vicinity of the melting point of the Ni alloy 3, TiC at the time of joining is formed in the Ni alloy 3 so as to form 20 to 80% by volume ratio,
This is a composite of SiC ceramics.
更に、上記SiCセラミックス１と、第４族または第５族
の内の何れかの金属４、またはそれらの合金の内の何れ
かの金属４とを、接合した金属面４と、他の被接合ベー
ス金属６、例えばSUS等との間を、第５図に示すよう
に、耐熱Niろう材例えばBNi-2（Ni-Si-B）により接合し
て、SiCセラミックス１と被接合ベース金属６との複合
体とするものである。Furthermore, the above-mentioned SiC ceramics 1 and the metal 4 of any one of the groups 4 and 5 or the metal 4 of any of their alloys are joined to the metal surface 4 and other joined objects. As shown in FIG. 5, a heat resistant Ni brazing material such as BNi-2 (Ni-Si-B) is bonded between the base metal 6, such as SUS, to form the SiC ceramics 1 and the base metal 6 to be bonded. Is a complex of.
（Ｅ）〔発明の効果〕 本発明は、高温条件下において、高い耐熱性と高機械的
強度に優れたSiCセラミックスをその耐高熱と高機械的
強度特性を損なうことなく、SiCセラミックスと、他のS
iCセラミックス、または金属と複合化した複合体であ
り、 従来はSiCセラミックスの複合体はAg-Cu-Ti合金等を使
用して複合化されていたが、合金中に生成されるTiCは
数％以下と少なく、SiCセラミックスとのNi合金３との
界面に薄く層状に形成されるのみで、高温条件下におけ
る十分な接合強度を得ることは難しく、SiCセラミック
スの高い耐熱性と高機械的強度を存分に発揮せしめるこ
とは困難であった。(E) [Effects of the Invention] The present invention provides SiC ceramics excellent in high heat resistance and high mechanical strength under high temperature conditions without impairing their high heat resistance and high mechanical strength characteristics. S
iC ceramics or a composite compound with a metal. Conventionally, a composite of SiC ceramics was compounded using Ag-Cu-Ti alloy etc., but TiC generated in the alloy is several%. It is difficult to obtain sufficient bonding strength under high temperature conditions because it is only formed in a thin layer at the interface between the SiC ceramics and the Ni alloy 3 and the high heat resistance and high mechanical strength of the SiC ceramics are as follows. It was difficult to make the most of it.
本発明においては、Ni合金自体、耐熱温度が高く、しか
も、SiCセラミックス１とSiCセラミックス１、または第
４族・第５族の内何れか一種の金属４またはそれらの合
金の内何れかの金属４との接合時、Ni合金３中に含まれ
るTiCの含有率は、体積比で20〜80％と高く、従ってTiC
はNi合金３中に満遍無く分散強化されるため、高温条件
下においても、高い耐熱性と高機械的強度を有するSiC
セラミックス複合体とすることができるものである。In the present invention, the Ni alloy itself has a high heat resistance temperature, and moreover, the SiC ceramics 1 and the SiC ceramics 1, or any one metal 4 or 5 of the groups 4 or 5 or any metal thereof. The content of TiC contained in Ni alloy 3 is as high as 20 to 80% by volume at the time of joining with No.
Since it is uniformly dispersed and strengthened in Ni alloy 3, SiC has high heat resistance and high mechanical strength even under high temperature conditions.
It can be a ceramic composite.
第１図に示すような、SiCセラミックス１とSiCセラミッ
クス１を接合した本発明の複合体を剪断試験した結果
は、第２図に示すように、室温において156MPa、546Kで
316MPa、高温時の973Kにおいても260MPaと高い剪断強度
を示した。As shown in FIG. 2, the results of the shear test of the composite of the present invention in which SiC ceramics 1 and SiC ceramics 1 are bonded as shown in FIG. 1 are 156 MPa and 546 K at room temperature.
It showed high shear strength of 316MPa and 260MPa even at high temperature of 973K.
またSiCセラミックス１とNbとの複合体の剪断強度は、
第２図に示すように、室温で110MPa前後、以後973Kに至
るまで90〜100MPa前後の値を示し、温度上昇に伴なう剪
断強度の低下は殆ど認められず、優れた剪断強度を示し
た。The shear strength of the composite of SiC ceramics 1 and Nb is
As shown in FIG. 2, it showed a value of around 110 MPa at room temperature, and a value of around 90 to 100 MPa until reaching 973K, and almost no decrease in shear strength due to temperature rise was observed, indicating excellent shear strength. .
本発明のSiCセラミックス接合体が、高温において高い
剪断強度を示すのは、高い耐熱性を有するNi合金に、数
μｍの微細なTiCを多量に含有せしめて、各部に均一に
分散せしめ、合金の変形を阻止するとともに、 SiCセラミックス複合体の接合時に、その接合層に多量
のTiCを形成せしめ、これをNi合金３中に均一に分散せ
しめるようにしたことに伴なう、接合強度の強化による
ものである。The SiC ceramics bonded body of the present invention exhibits high shear strength at high temperatures because it has a high heat resistance of a Ni alloy containing a large amount of fine TiC of several μm and uniformly dispersed in each part. In addition to preventing deformation, a large amount of TiC was formed in the bonding layer at the time of bonding the SiC ceramics composite, and this was evenly dispersed in the Ni alloy 3 to enhance the bonding strength. It is a thing.
本発明のSiCセラミックス複合体は、耐熱性を強く必要
とする、炉の構成部材や、ガスタービンのブレードの構
成部材、 または対摩耗性を必要とする刃物、 あるいは対摩耗性と機械的強度並びに耐熱性を強く要求
するバイトや、内燃機関のシリンダやピストン等の部材
等として、優れた機能を発揮するものである。The SiC ceramic composite of the present invention strongly requires heat resistance, a constituent member of a furnace, a constituent member of a blade of a gas turbine, or a blade that requires wear resistance, or wear resistance and mechanical strength and It exhibits excellent functions as a bite that strongly requires heat resistance and a member such as a cylinder and a piston of an internal combustion engine.
第１図、第３図、第５図は本発明の説明用模式図、 第２図、第４図は本発明のSiCセラミックス複合体の、
試験温度と剪断強度の関係を示す、試験結果図。 １はSiCセラミックス、２はTiC、３はNi合金、４は第４
族・第５族の内何れかの金属またはそれらの合金の内の
何れかの金属、５は耐熱Niろう材、６は被接合ベース金
属。FIGS. 1, 3, and 5 are schematic diagrams for explaining the present invention, and FIGS. 2 and 4 show the SiC ceramic composite of the present invention.
The test result figure which shows the relationship between a test temperature and shear strength. 1 is SiC ceramics, 2 is TiC, 3 is Ni alloy, 4 is the 4th
Any metal of Group 5 or Group 5 or any of their alloys, 5 is a heat-resistant Ni brazing material, and 6 is a base metal to be bonded.
Claims (3)
Cを体積比で20〜80％を含むNi合金により、真空または
不活性ガス雰囲気中で、Ni合金の融点近傍で、一体に複
合化したSiCセラミックス複合体。1. SiC ceramics and SiC ceramics are
A SiC ceramics composite that is integrally compounded in the vicinity of the melting point of a Ni alloy in a vacuum or an inert gas atmosphere with a Ni alloy containing 20 to 80% by volume of C.
・第５族の内の何れかの金属、またはそれらの合金の内
の何れかの金属とを、TiCを体積比で20〜80％を含むNi
合金により、真空または不活性ガス雰囲気中で、Ni合金
の融点近傍で、一体に複合化したSiCセラミックス複合
体。2. A SiC ceramics and a metal of any one of Group 4 and Group 5 of the long-term periodic table, or one of alloys thereof, TiC in a volume ratio of 20 to 20. Ni containing 80%
Depending on the alloy, in a vacuum or in an inert gas atmosphere, a SiC ceramics composite that is integrally compounded near the melting point of the Ni alloy.
・第５族の内の何れかの金属、またはそれらの合金の内
の何れかの金属とを、TiCを体積比で20〜80％を含むNi
合金により、真空または不活性雰囲気中で、Ni合金の融
点近傍で、一体に複合化してなるSiCセラミックス複合
体の金属面を、耐熱Niろう材により被接合ベース金属
に、接合一体化してなるSiCセラミックス複合体。3. A SiC ceramic and a metal of any one of Groups 4 and 5 of the long-term periodic table, or one of these alloys, and TiC in a volume ratio of 20 to 20. Ni containing 80%
Depending on the alloy, in a vacuum or in an inert atmosphere, near the melting point of the Ni alloy, the metal surface of the SiC ceramics composite is integrally joined to the base metal to be joined by heat resistant Ni brazing material. Ceramic composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15455190A JPH0688841B2 (en) | 1990-06-13 | 1990-06-13 | SiC ceramics composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15455190A JPH0688841B2 (en) | 1990-06-13 | 1990-06-13 | SiC ceramics composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0446066A JPH0446066A (en) | 1992-02-17 |
| JPH0688841B2 true JPH0688841B2 (en) | 1994-11-09 |
Family
ID=15586724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15455190A Expired - Lifetime JPH0688841B2 (en) | 1990-06-13 | 1990-06-13 | SiC ceramics composite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0688841B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4537226B2 (en) | 2005-02-28 | 2010-09-01 | キヤノン株式会社 | Image forming apparatus |
-
1990
- 1990-06-13 JP JP15455190A patent/JPH0688841B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0446066A (en) | 1992-02-17 |
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| JPH0497968A (en) | Ceramic-metal joined body | |
| JPH04342479A (en) | Bonding of ceramic and metal | |
| JPS63317257A (en) | Joining method of metal and ceramic |