Effect of nano-graphite on mechanical properties and oxidation resistance of ZrB2-SiC-graphite electrode ceramics

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外文摘要：ZrB2-based ceramic composites were prepared by spark plasma sintering using ZrB2 powder prepared by molten salt method as raw material and SiC and nano-graphite as additives.The effects of nano-graphite addition on the physical properties and oxidation resistance of ZrB2-based ceramic samples were investigated.The results show that the addition of an appropriate amount of nano-graphite can effectively improve the density of ZrB2-based ceramic composites and improve the physical properties of the materials.The flexural strength of the ceramic sample with 8 vol.％nano-graphite reached 418.54 MPa,which was 53.14％higher than that of ZrB2-SiC ceramic material(273.31 MPa),and its oxidation resistance was also significantly improved.It demonstrats that the addition of an appropriate amount of nano-graphite can effectively improve the physical properties and oxidation resistance of ZrB2-SiC ceramic composites.Via prolonging its service life in application and promoting the development of ZrB2-based ceramic composites,it is of great significance for clean steel smelting.

外文关键词：

ZrB2-SiC-graphite electrode ceramicZrB2-based ceramic compositeNano-graphitePhysical propertyOxidation resistance

作者：

Bo-lin Yang、Chang-liu Kuang、Zheng-long Liu、Chao Yu、Cheng-ji Deng、Jun Ding

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作者单位：

The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China

基金：

Natural Science Foundation of Hubei ProvinceNational Natural Science Foundation of ChinaScientific Research Project of Education Department of Hubei Province

项目编号：

2023BAB106U20A20239D20211104

出版年：

2024

DOI：

10.1007/s42243-023-01174-2

钢铁研究学报(英文版)

钢铁研究总院

钢铁研究学报(英文版)

CSTPCD

影响因子：0.584

ISSN：1006-706X

年,卷(期)：2024.31(6)