Preparation method of beta-FeSi2 alloy

The invention discloses a preparation method of a beta-FeSi2 alloy. The preparation method comprises the steps of firstly weighing Fe2O3, Si and Al raw material powder in a molar ratio of 1:4:(2-2.4); then performing dry grinding and mixing on weighed reaction materials; putting the materials into a...

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Bibliographic Details
Main Authors LI XIANMING, MENG QIAN, LA PEIQING, GUO XIN, OU YUJING, WEI YUPENG, LU XUEFENG
Format Patent
LanguageChinese
English
Published 10.09.2014
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The invention discloses a preparation method of a beta-FeSi2 alloy. The preparation method comprises the steps of firstly weighing Fe2O3, Si and Al raw material powder in a molar ratio of 1:4:(2-2.4); then performing dry grinding and mixing on weighed reaction materials; putting the materials into a mold, pressing into a round cake shaped blank, putting the blank into a crucible, then putting ignition agent small pieces on a pressed blank, and finally putting a copper crucible into a reaction kettle integrally; introducing 1MPa of argon again to blow the inner part of the reaction kettle, thus exhausting air in the reaction kettle; exhausting air again when the temperature in the reaction kettle rises to 200 DEG C, and introducing 5MPa of argon again after exhausting air; when the temperature in the reaction kettle rises to about 280 DEG C, enabling an ignition agent to perform reaction, releasing a large amount of heat at the same time, completing the reaction within tens of seconds, and cooling a generated
Bibliography:Application Number: CN20141291688