发明名称 |
Germanate glass ceramic |
摘要 |
A germanate glass ceramic article which has better thermal and physical properties than the competing materials of zinc sulfide, spinel, and sapphire is made by mixing germanate ceramic glass components; melting the components to form a molten mass; cooling the molten mass to form a solid glass article; nucleating the solid article by heating it in the range of about 630 DEG -790 DEG C. for about 1-16 hours to develop nuclei in the article; and crystallizing the nucleated article by heating it, after nucleation, in the range of about 1/2 minute to about 8 hours to grow the nuclei to crystallites having an average diameter of less then about 1000 nanometer (nm); and cooling to form the glass ceramic.
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申请公布号 |
US5486495(A) |
申请公布日期 |
1996.01.23 |
申请号 |
US19940363074 |
申请日期 |
1994.12.23 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
JEWELL, JOHN M.;HARBISON, BARRY B.;AGGARWAL, ISHWAR D.;BAYYA, SHYAM S. |
分类号 |
C03C3/253;C03C10/00;C03C10/02;(IPC1-7):C03C10/02 |
主分类号 |
C03C3/253 |
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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