发明授权
- 专利标题: Oxidation and sinter-resistant metal powders
- 专利标题(中): 氧化和耐烧结金属粉末
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申请号: US655836申请日: 1976-02-06
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公开(公告)号: US4036634A公开(公告)日: 1977-07-19
- 发明人: Anthony V. Fraioli , John A. DeRosa
- 申请人: Anthony V. Fraioli , John A. DeRosa
- 申请人地址: NY Melville
- 专利权人: Plessey, Incorporated
- 当前专利权人: Plessey, Incorporated
- 当前专利权人地址: NY Melville
- 主分类号: B01J23/755
- IPC分类号: B01J23/755 ; B22F9/24 ; C22C1/10 ; H05K1/09 ; C22C1/05 ; C22C5/02
摘要:
A high density precious metal powder that resists sintering at 600.degree. C. and contains a very small percentage of titania or zirconia is produced by co-nucleation and precipitation of gold and titania from an ammoniacal solution at pH 3-4 with a bisulfite.A nickel powder including a very small percentage of a refractory oxide such as zirconia is prepared by co-nucleation and precipitation from an alkaline solution with hydrazine.Materials so prepared have oxidation resistance and sintering temperatures superior to the pure metal, and find utility in microelectronics as air-fired thick films. Nickel powders so prepared are also useful as hydrogenation catalysts and in other applications.
公开/授权文献
- US5824486A Glycine transporter-transfected cells and uses thereof 公开/授权日:1998-10-20