Grain-rein forced gradient composite material and preparation method thereof |
Title： |
| Grain-rein forced gradient composite material and preparation method thereof |
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Application Number： |
02146685 |
Application Date： |
2002/11/05 |
Announcement Date： |
2003/03/26 |
Pub. Date： |
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Publication Number： |
1404943 |
Announcement Number： |
1193846 |
Grant Date： |
2005-3-23 |
Granted Pub. Date： |
2005-3-23 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B22D 19/14, C22C 1/10, C22C 32/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Liu Wei, Li Xiaoling |
Key Words： |
Grain-rein forced, gradient composite material, preparation method |
Abstract： |
The present invention discloses a granule reinforced gradient composite material and its preparation method, which is characterized by that in a molten liquid metal a high-hardness non-metal granules can be mixed according to a certain ratio, and under the action of constant electromagnetic buoyancy force of external electromagnetic field the liquid metal can be formed into directional movement, and the reinforcing phase granules can be moved along the direction opposite from flowing direction of liquid metal, after they are cooled and set, the invented product can be obtained, in whith the reinforcing phase granules can be distributed in the emtal material in the gradient form, and its tissue and performance also have gradient change, and the loughness and plasticity of said composite material also can be improved. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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