发明名称 |
Polycrystalline carbon conversion |
摘要 |
A polycrystalline carbon body is converted to a different crystallography by directing an infrared laser beam at a crystal boundary interface. By using a beam having a 5.3 micron wavelength so as to fall within a 5-9 micron range of normal spectral transmittance of the carbon, the interface is heated for solid state conversion by passing the beam through a forward portion of the body without appreciably heating the forward portion. During heating, the interface propagates through the body, thus converting an ever-decreasing aft portion of the body to the different crystallography.
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申请公布号 |
US6126741(A) |
申请公布日期 |
2000.10.03 |
申请号 |
US19980206721 |
申请日期 |
1998.12.07 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
JONES, MARSHALL GORDON;WANG, HSIN-PANG |
分类号 |
C30B29/04;C01B31/02;C30B1/02;(IPC1-7):C30B29/04 |
主分类号 |
C30B29/04 |
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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