发明名称 |
METHOD OF FORMING NANO-CRYSTALLINE STRUCTURES AND PRODUCT FORMED THEREOF |
摘要 |
A product in which at least a portion of the product has a nanocrystalline microstructure, and a method of forming the product. The method generally entails machining a body in a manner that produces chips consisting entirely of nano-crystals as a result of the machining operation imposing a sufficiently large strain deformation. The body can be formed of a variety of materials, including metal, metal alloy and ceramic materials. Furthermore, the body may have a microstructure that is essentially free of nano-crystals, and may even have a single-crystal microstructure. The chips produced by the machining operation may be in the form of particulates, ribbons, wires, filaments and/or platelets. The chips are then used to form the product. According to one aspect of the invention, the chips are consolidated to form the product, such that the product is a monolithic material that may contain nano-crystals. According to another aspect of the invention, the chips are dispersed in a matrix material, such that the product is a composite material in which the chips serve as a reinforcement material. |
申请公布号 |
WO02061151(A2) |
申请公布日期 |
2002.08.08 |
申请号 |
WO2001US50148 |
申请日期 |
2001.10.27 |
申请人 |
PURDUE RESEARCH FOUNDATION;CHANDRASEKAR, SRINIVASAN;COMPTON, WALTER, DALE;FARRIS, THOMAS, N.;TRUMBLE, KEVIN, P. |
发明人 |
CHANDRASEKAR, SRINIVASAN;COMPTON, WALTER, DALE;FARRIS, THOMAS, N.;TRUMBLE, KEVIN, P. |
分类号 |
B22F1/00;B22F9/00;B22F9/04;C04B20/02;C04B35/622;C22C1/04;C22C49/14;C30B33/00 |
主分类号 |
B22F1/00 |
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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