Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7990445 | Journal of Alloys and Compounds | 2018 | 10 Pages |
Abstract
ZrB2B4C composite powders (ZBCs) were synthesized by B4C reduction method via induction heating in an argon atmosphere using ZrO2, B4C, and pitch powder as raw materials. The effect of ZBCs addition on the performance of Al2O3SiCC (ASC) castables was evaluated by considering their mechanical properties, oxidation resistance, and slag resistance. The results showed that high-purity ZBCs with a median particle diameter of 3.07â¯Î¼m could be easily obtained by induction heating at 1400â¯Â°C for 30â¯min. The bulk density, cold modulus of rupture (CMOR), hot modulus of rupture (HMOR), and anti-oxidation performance of ASC castables can be synchronously improved via the introduction of synthesized ZBCs. The isothermal oxidation test at 1450â¯Â°C revealed that the oxidation behavior of the samples with ZBCs addition follows a parabolic law. The slag corrosion resistance of ASC castables was slightly impaired, but the slag penetration resistance was obviously enhanced due to improved oxidation resistance.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Huan Xu, Xitang Wang, Zhoufu Wang, Yan Ma, Hao Liu, Yulong Wang,