SecSSecSSecS
第2期
Application of Activated Alumina Powders in Corundum Castables
作者:LI Youqi, DING Jinxing, CUI Qingyang, ZHAO Jizeng
作者机构:
分类号:
卷号:28
期号 : 2019 年, 第2期
页码:12 - 17
内容简介

There are many brands of activated alumina powders in the market and the products from different manufacturers exist subtle differences. In this work, four brands of activated alumina powder which are the mainstream products in China with the same marked particle size of 2-3 μm were added to corundum castables to investigate the effect of different activated alumina powder on properties of corundum castables. It is found that the multi-peak distribution, round-shape particle, low impurities content of alumina powder are of great benefit to the improvement of the overall performance of castables. Obvious CA6 frame structure formed in castables matrix is conductive to improving the thermal shock resistance and high temperature strength of castables. One kind of domestic alumina micropowder studied in this work has good application value and prospect in corundum castables because of the excellent comprehensive performance.

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