PHASE-SEPARATION AND PHYSICAL-PROPERTIES OF SODIUM BOROSILICATE GLASSES WITH INTERMEDIATE SILICA CONTENT

被引：10

作者：

DOWEIDAR, H ^{[1
]}

ELSHAHAWI, MS ^{[1
]}

REICHA, FM ^{[1
]}

SILIM, HA ^{[1
]}

ELEGALY, K ^{[1
]}

机构：

[1] MANSOURA UNIV,FAC SCI,DEPT CHEM,MANSOURA 35516,EGYPT

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1990年 / 23卷 / 11期

关键词：

Microscopes; Electron - Silica - Sodium Compounds--Microstructure;

D O I：

10.1088/0022-3727/23/11/014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Microstructures of sodium borosilicate glasses with intermediate silica content, doped with CuO, were examined. Electron micrographs of heat-treated glasses show two randomly distributed phases. DC conductivity measurements indicate that alkali oxide is associated with B2O3. CuO is assumed to act as a network modifier in the borate matrix and does not affect the phase separation process. Optical absorption in the UV and visible regions was also examined. Phase separation causes a shift of the UV edge towards longer wavelengths, which is considered to be a result of light scattering on SiO2-rich particles produced by heat treatment. © 1990 IOP Publishing Ltd.

引用

页码：1441 / 1446

页数：6

共 20 条

[1] ESR AND OPTICAL SPECTRAL PROPERTIES OF COPPER(II) COMPLEXES WITH SCHIFF-BASE LIGANDS DERIVED FROM ORTHO-AMINOBENZALDEHYDE [J].