Physicochemical Transformations During Low-Temperature Synthesis of Zirconium Carbide

被引：2

作者：

Shishkin, R. A. ^{[1
]}

Kudyakova, V. S. ^{[1
]}

Zhirenkina, N. V. ^{[1
]}

机构：

[1] Ural Fed Univ, Ekaterinburg, Russia

来源：

REFRACTORIES AND INDUSTRIAL CERAMICS | 2019年 / 60卷 / 01期

关键词：

joint reduction; magnesiothermy; zircon carbide ZrC; sodium carbonate Na2CO3; low-temperature synthesis; SOLID-STATE REACTION; SODIUM;

D O I：

10.1007/s11148-019-00317-x

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：

Joint reduction of zirconium dioxide and sodium carbonate to form zirconium carbide was studied. Magnesiothermic reduction of ZrO2 was shown to occur at 600 - 620 degrees C; Na2CO3, 590 - 610 degrees C. Thermodynamic calculations and x-ray phase analyses indicated the transformations occurring during the synthesis and the resulting reaction products. Use of graphite as the carbon source did not lead to ZrC formation at 700 - 900 degrees C, in contrast with Na2CO3.

引用

页码：105 / 108

页数：4

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