发明名称 |
REACTIVE ATMOSPHERE PROCESSING OF HEAVY-METAL FLUORIDE GLASSES |
摘要 |
<p>Process for treating molten mixtures of fluorozirconate glass to form high purity infrared transparent glass which is essentially free of zirconium fluoride disassociation impurities and anion impurities. The molten mixture or melt is treated with a moisture-free oxygen reactive atmosphere to prevent formation of disassociation impurities or to remove any of these impurities already present in the melt. The melt is also contacted simultaneously or subsequently with a fluorine species reactive gas to remove any oxygen anion impurities formed during the oxygen reactive atmosphere treatment of the melt to thereby provide a glass having complete fluorine stoichiometry and which is free of disassociation and anion impurities.</p> |
申请公布号 |
EP0227792(B1) |
申请公布日期 |
1989.09.13 |
申请号 |
EP19860904474 |
申请日期 |
1986.04.11 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
ROBINSON, MORTON |
分类号 |
C01G25/04;C03B8/00;C03C1/02;C03C3/32;C03C13/04 |
主分类号 |
C01G25/04 |
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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