DEFECT CENTERS IN HEAVY-METAL FLUORIDE GLASSES - A REVIEW

被引：27

作者：

GRISCOM, DL

机构：

[1] Naval Research Laboratory, Washington

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1993年 / 161卷

关键词：

D O I：

10.1016/0022-3093(93)90667-M

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A variety of paramagnetic defect centers are induced in heavy-metal fluoride glasses by ionizing radiations. The most fundamental of these are the F centers (neutral fluorine vacancies, which tend to associate with Zr4+ or Hf4+ ions) and the H centers (interstitial atomic fluorines, which in pure glasses inevitably combine with normal network F- ions to form F-3(2-) and/or F2- species). The most stable defects are those associated with impurities. The latter include F-type centers associated with Fe3+ and the following H-type centers: (FCl)-, Cl2-, (FBr)-, Br2-, O-(?), and O2-. All of these defects have been well characterized by electron spin resonance.

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页码：45 / 51

页数：7

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