GB1250064A - - Google Patents
Info
- Publication number
- GB1250064A GB1250064A GB1250064DA GB1250064A GB 1250064 A GB1250064 A GB 1250064A GB 1250064D A GB1250064D A GB 1250064DA GB 1250064 A GB1250064 A GB 1250064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- powder
- refractory oxide
- mixture
- refractory
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
1,250,064. Refractory-oxide-Ni-Cr alloy powder. SHERRITT GORDON MINES Ltd. July 10, 1969 [Aug.19, 1968], No.34861/69. Heading C7D. Nickel powder particles containing physically inseparable sub-micron refractory oxide particles at least a portion of which are fixed on the surfaces of the Ni particles, are mixed with a powder consisting of one or more of Cr, Cr 2 O 3 and Cr(OH) 3 , dry pure hydrogen is flowed over a bed of the mixture which is heated to above 650 C. but below the sintering temperature of the mixture and the heating is continued until all the Cr has diffused into the Ni particles and any oxygen, other than that in the refractory oxide, in the mixture is less than 0.6%, the refractory oxide containing Ni-Cr alloy powder then being recovered. The original Ni powder may be obtained by direct hydrogen reduction of an aqueous suspension of ThO 2 -impregnated basic Ni compounds. The product of the diffusion process comprises clusters, up to 50 Á in size, of spheroidal uniformly alloyed Ni-Cr alloy particles with a diameter of up to 5Á, and containing up to 25 volume per cent of discrete sub-micron refractory oxide particles a major portion of which are uniformly distributed on the surfaces of the spheroidal particles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA27772 | 1968-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1250064A true GB1250064A (en) | 1971-10-20 |
Family
ID=4084446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1250064D Expired GB1250064A (en) | 1968-08-19 | 1969-07-10 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4928583B1 (en) |
| BE (1) | BE736895A (en) |
| CA (1) | CA869929A (en) |
| DE (1) | DE1940815A1 (en) |
| FI (1) | FI50346C (en) |
| FR (1) | FR2015924A1 (en) |
| GB (1) | GB1250064A (en) |
| SE (1) | SE365252B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1559647A (en) * | 1976-09-07 | 1980-01-23 | Special Metals Corp | Method of making oxide dispersion strengthened metallic powder |
| CN115852488B (en) * | 2022-12-20 | 2025-11-21 | 中国科学院地球化学研究所 | Preparation method of nickel doped high-water content cobalt chromite single crystal at high temperature and high pressure |
-
1968
- 1968-08-19 CA CA869929A patent/CA869929A/en not_active Expired
-
1969
- 1969-07-10 GB GB1250064D patent/GB1250064A/en not_active Expired
- 1969-07-14 SE SE09937/69A patent/SE365252B/xx unknown
- 1969-07-23 FI FI692195A patent/FI50346C/en active
- 1969-07-31 BE BE736895D patent/BE736895A/xx unknown
- 1969-08-01 JP JP44060480A patent/JPS4928583B1/ja active Pending
- 1969-08-11 DE DE19691940815 patent/DE1940815A1/en active Pending
- 1969-08-19 FR FR6928403A patent/FR2015924A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FI50346C (en) | 1976-02-10 |
| SE365252B (en) | 1974-03-18 |
| JPS4928583B1 (en) | 1974-07-27 |
| DE1940815A1 (en) | 1970-02-26 |
| FR2015924A1 (en) | 1970-04-30 |
| CA869929A (en) | 1971-05-04 |
| FI50346B (en) | 1975-10-31 |
| BE736895A (en) | 1969-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |