ρ-Al2O3添加量对原位反应结合碳化硅膜支撑体性能的影响

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罗志勇¹，刘开琪^2*，韩伟¹，敖雯青¹，陈运法²

1. 钢铁研究总院特种陶瓷与耐火材料北京市重点实验室，北京 100081 2. 中国科学院过程工程研究所多相复杂系统国家重点实验室，北京 100190

收稿日期:2018-05-28修回日期:2018-08-07出版日期:2019-04-22发布日期:2019-04-18
通讯作者:刘开琪

基金资助:国家重点研发计划

Effect of ρ-Al₂O₃ addition on the properties of in situ reaction-bonded porous SiC membrane support

Zhiyong LUO¹, Kaiqi LIU^2*, Wei HAN¹, Wenqing AO¹, Yunfa CHEN²

1. Beijing Key Laboratory of Advanced Ceramic and Refractories, Central Iron & Steel Research Institute, Beijing 100081, China 2. State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2018-05-28Revised:2018-08-07Online:2019-04-22Published:2019-04-18

Supported by:National Key R&D Program of China

摘要/Abstract

摘要： 以黑色碳化硅为骨料，添加不同含量的ρ-Al2O3，在1430℃、无压条件下，用碳化硅表面氧化产生的SiO2与Al2O3反应制备多孔碳化硅膜支撑体，研究了ρ-Al2O3添加量对碳化硅支撑体粘结相组成及性能的影响。结果表明，ρ-Al2O3添加量由3wt%增加到15wt%时，试样烧结后粘结相中莫来石相增多，石英相减少但不能完全消除，支撑体的显气孔率降低，孔径减小，透气度由1127.8 m3?cm/(m2?h?kPa)下降到210.4 m3?cm/(m2?h?kPa)；支撑体抗弯强度先增大后降低，ρ-Al2O3添加量为9wt%时，支撑体抗弯强度为25.1 MPa，透气度为372.7 m3?cm/(m2?h?kPa)，支撑体的综合性能满足高温含尘气体过滤的要求。

引用本文

罗志勇刘开琪韩伟敖雯青陈运法. ρ-Al₂O₃添加量对原位反应结合碳化硅膜支撑体性能的影响[J]. 过程工程学报, 2019, 19(2): 407-412.
Zhiyong LUO Kaiqi LIU Wei HAN Wenqing AO Yunfa CHEN. Effect of ρ-Al₂O₃ addition on the properties of in situ reaction-bonded porous SiC membrane support[J]. Chin. J. Process Eng., 2019, 19(2): 407-412.

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