MICROCHEMISTRY AND MICROSTRUCTURE OF SOME OPAQUE GLAZE TILE INTERFACES IN RELATION TO THEIR PHYSICAL-PROPERTIES

被引：19

作者：

ELDEFRAWI, SA ^{[1
]}

SERRY, MA ^{[1
]}

ELFATTAH, WIA ^{[1
]}

WEISWEILER, W ^{[1
]}

机构：

[1] UNIV KARLSRUHE,INST CHEM TECHNOL,KARLSBURG,GERMANY

来源：

CERAMICS INTERNATIONAL | 1995年 / 21卷 / 02期

关键词：

D O I：

10.1016/0272-8842(95)95874-H

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：

Physical properties of some double- and once-fired glazed tiles were assessed in the light of the microchemistry and microstructure of their interfaces as investigated using a computer-controlled electron-probe microanalyzer. The properties investigated are melting temperatures and thermal expansion of glazes, as well as crazing resistance and gloss of glaze surfaces. The double- and once-fired glaze layers are strongly bound to their ceramic tiles, as indicated by high resistance to crazing. The application of zircon-ZnO opacifying mixtures in the presence of 5.0-8.0 wt% B2O3 leads to maximizing the gloss of glaze surfaces. Increasing B2O3 content enhances bubble formation whereas a mat layer results at the surface of once-fired glazes containing higher zircon and ZnO contents at the expense of B2O3. The recrystallization of silicate phases, especially in double-fired glazes, is hindered by minimizing the lime and alkali oxides content in the presence of up to 10wt% ZnO.

引用

页码：69 / 75

页数：7

共 17 条

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