Metal-protective coatings for graphite-containing crucibles based on oxide-fluoride mixtures

被引：0

作者：

Snegirev, AI ^{[1
]}

Slobodin, BV ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg, Russia

来源：

REFRACTORIES AND INDUSTRIAL CERAMICS | 1997年 / 38卷 / 1-2期

关键词：

Wollastonite; Calcium Aluminate; Calcium Fluoride; Gehlenite; Hydrogen Fluoride;

D O I：

10.1007/BF02768231

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：

Special features of phase transformations in the system SiO2-Al2O3-CaF2 are considered regarding the synthesis of metal-protective coatings for graphite-containing crucibles. It is shown that the compound CaAl2Si2O8 obtained in the oxide-fluoride mixture Al2Si2O7 + SiO2 + CaF2 is stable toward aluminum alloys. The use of metal-protective coatings increases the stability of graphite-containing crucibles more than 4-fold.

引用

页码：27 / 29

页数：3