Effect of TiO2 addition on the chemical durability of Bi2O3-SiO2-ZnO-B2O3 glass system

被引：34

作者：

Fredericci, C. ^{[1
]}

Yoshimura, H. N. ^{[1
]}

Molisani, A. L. ^{[1
]}

Fellegara, H. ^{[2
]}

机构：

[1] Inst Pesquisas Tecnol Estado Sao Paulo SA, BR-05508901 Sao Paulo, Brazil

[2] Ticon Tintas Condutivas Ltda, BR-15609941 Diadema, SP, Brazil

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 42-44期

基金：

巴西圣保罗研究基金会;

关键词：

Chemical durability;

D O I：

10.1016/j.jnoncrysol.2008.04.026

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：

The effect of the substitution of ZnO for TiO2 on the chemical durability of Bi2O3-SiO2-ZnO-B2O3 glass coatings in hot acidic medium (0.1 N H2SO4 at 80 degrees C) for different times was studied. The thick films produced by a screen-printing method and heat treated at 700 degrees C/5 min were analyzed by X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy. The glass from the Bi2O3-SiO2-ZnOB2O3 system developed Zn2SiO4 and a glassy phase that were readily attacked by hot 0.1 N sulfuric acid. whereas the heat treated coating from the Bi2O3-SiO2-TiO2-ZnO-B2O3 System presented a finer microstructure with thin interconnected Bi4Ti3O12 crystals and a glassy phase more resistant to hot 0.1 N sulfuric acid attack etching. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：4777 / 4785

页数：9

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