STRUCTURAL-CHANGE IN THE NEAR-SURFACE OF A SILICA GLASS BLOCK BY HEAT-TREATMENT

Authors
KUZUU N FOLEY JW KAMISUGI N
Citation
N. Kuzuu et al., STRUCTURAL-CHANGE IN THE NEAR-SURFACE OF A SILICA GLASS BLOCK BY HEAT-TREATMENT, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 106(5), 1998, pp. 525-527
Citations number
11
Categorie Soggetti
Material Science, Ceramics
Journal title
Nippon Seramikkusu Kyokai gakujutsu ronbunshi → ACNP
ISSN journal
09145400
Volume
106
Issue
5
Year of publication
1998
Pages
525 - 527
Database
ISI
SICI code
0914-5400(1998)106:5<525:SITNOA>2.0.ZU;2-L
Abstract
The effect of annealing on the distribution of OH content and defect s tructures in a disk shaped block of fused silica containing approximat ely 1500 ppm of OH was investigated. Heating at 1160 degrees C for 120 h reduced the OH content near surface by about 60 ppm, and absorption bands at 6.5, 5.8, 5.0 and 4.8 eV were induced near the side surface. The amount of the reduction of OH content near the top surface was ab out 45 ppm, and only the 6.5-eV band was induced.