EFFECT OF GAMMA-RADIATION AND THERMAL-TREATMENT ON SOME PHYSICAL-PROPERTIES OF ZNO-PBO-B2O3 GLASSES

被引：44

作者：

DOWEIDAR, H

ZEID, MAA

ELDAMRAWY, GM

机构：

[1] Physics Department, Mansoura University, Mansoura

[2] Physics Department, Sanaa University, Sana’a

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1991年 / 24卷 / 12期

关键词：

D O I：

10.1088/0022-3727/24/12/015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The microhardness H(v) of xZnO.(50-x)PbO.50B2O3 glasses has been studied as a function of ZnO content and gamma dose. H(v) shows a maximum at about 15 mol.% ZnO. B-11 NMR suggests the formation of non-bridging oxygen ions in the borate network as ZnO is added in the PbO.B2O3 glass. Both the density and the molar volume decrease with the increase of ZnO. Irradiation with gamma rays lowers the microhardness, whereas heat treatment causes its increase. Infrared investigations indicate that radiation induced defects can activate phase separation processes when the irradiated glass is heat treated.

引用

页码：2222 / 2228

页数：7

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