发明名称 |
Nanocrystalline intermetallic powders made by laser evaporation |
摘要 |
A method of making intermetallic nanoparticles comprising subjecting a starting material to laser energy so as to form a vapor and condensing the vapor so as to form intermetallic nanoparticles. The starting material can be a mixture of pure elements or an alloy of two or more elements. The nanoparticles can be provided with a narrow size distribution with an average particle size of 2 to 100 nm, preferably 2 to 50 nm and more preferably 2 to 9 nm. The nanoparticles can be formed in a vacuum chamber wherein a temperature gradient is provided. The atmosphere in the chamber can be an inert atmosphere such as argon or a reactive atmosphere such as isobutene or oxygen. An electric field can be used to form filaments of the nanoparticles.
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申请公布号 |
US6368406(B1) |
申请公布日期 |
2002.04.09 |
申请号 |
US20000660962 |
申请日期 |
2000.09.13 |
申请人 |
CHRYSALIS TECHNOLOGIES INCORPORATED |
发明人 |
DEEVI SEETHARAMA C.;PITHAWALLA YEZDI B.;SHALL M. S. EL |
分类号 |
B22F9/12;C01B13/20;C30B23/00;(IPC1-7):C30B25/04 |
主分类号 |
B22F9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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