Phase composition of the products of nitriding ferrosilicon with zircon concentrate additives

被引：2
|
作者：
Chukhlomina, L. N. [1 ,2 ]
Vitushkina, O. G. [1 ,2 ]
Golobokov, N. N. [1 ,2 ]
Vereshchagin, V. I. [1 ,2 ]
机构：
[1] Russian Acad Sci, Tomsk Sci Ctr, Siberian Branch, Tomsk, Russia
[2] Tomsk Polytech Univ, Tomsk, Russia
来源：
GLASS AND CERAMICS | 2008年 / 65卷 / 1-2期
关键词：
Silicon Nitride; Ferrosilicon; Zircon Concentrate; Iron Silicon; Iron Silicide;
D O I：
10.1007/s10717-008-9006-5
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 process of nitride formation during combustion of iron silicon with the addition of zircon concentrate in nitrogen gas is investigated. It is determined that in the presence of zircon (5-70%) ferrosilicon burns in a surface regime, and the products of combustion are multiphase. For the optimal parameters of synthesis (nitrogen pressure 4-7 MPa and sample diameter 35-40 mm) the products of combustion are a composition consisting of a ceramic constituent (Si3N4-ZrO2-Si2N2O) and iron (alpha-Fe). The method of acidic enrichment is used to obtain a composite ceramic powder with iron mass content 0.5%
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收藏
页码：38 / 40
页数：3
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