Preparation and properties of porous reaction-bonded SiC ceramic using Si3N4 as silicon source
2020-12
发表期刊MATERIALS TODAY SUSTAINABILITY (IF:7.1[JCR-2023],7.4[5-Year])
ISSN2589-2347
卷号10页码:#VALUE!
发表状态已发表
DOI10.1016/j.mtsust.2020.100050
摘要

In the traditional porous reaction-bonded silicon carbide (RBSC) ceramic, the phenomenon of residual silicon usually happens due to the usage of monatomic silicon as reactant, which greatly weakens its high-temperature properties, as well as corrosion resistance. In this paper, Si3N4 was successfully utilized as silicon source for the preparation of porous RBSC ceramics. Only SiC phase in the final bulks was detected by X-ray, indicating the achievement of avoiding residual silicon. There were homogeneous and isotropous pores with 48.3% of porosity for as-acquired RBSC ceramic. Its average pore size was similar to 1.6 mu m, while the pore throat size was less than 1 mu m. Compared with porous oxide-bonded SiC ceramic, porous RBSC ceramic showed superiority in N-2 permeability (217 m(3)/(m(2). h.bar)), as well as flexural strength at normal temperature (35.5 +/- 2.3 MPa), and high temperature of 1000 degrees C (21.2 +/- 1.7 MPa). Moreover, porous RBSC could keep intact after exposing in boiling solutions of 10 wt% H2SO4 and 1 wt% NaOH for 12 h, indicating its chemical stability in the acid and alkaline environment. (C) 2020 Elsevier Ltd. All rights reserved.

关键词Porous materials Reaction-generated Silicon carbide Silicon nitride
收录类别SCI ; SCIE ; EI
语种英语
WOS研究方向Science & Technology - Other Topics ; Materials Science
WOS类目Green & Sustainable Science & Technology ; Materials Science, Multidisciplinary
WOS记录号WOS:000612955400006
出版者ELSEVIER
WOS关键词CARBIDE CERAMICS ; MECHANICAL-PROPERTIES ; FABRICATION ; TEMPERATURE ; NITRIDE
原始文献类型Article
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/125963
专题物质科学与技术学院_特聘教授组_李燕组
通讯作者Wu, H.; Huang, Z.
作者单位
1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China;
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;
3.Chinese Acad Sci, Suzhou Res Ctr, Shanghai Inst Ceram, Suzhou 215411, Peoples R China
第一作者单位物质科学与技术学院
推荐引用方式
GB/T 7714
Li, Y.,Wu, H.,Wang, F.,et al. Preparation and properties of porous reaction-bonded SiC ceramic using Si3N4 as silicon source[J]. MATERIALS TODAY SUSTAINABILITY,2020,10:#VALUE!.
APA Li, Y.,Wu, H.,Wang, F.,Liu, X.,Huang, Z.,&Jiang, D..(2020).Preparation and properties of porous reaction-bonded SiC ceramic using Si3N4 as silicon source.MATERIALS TODAY SUSTAINABILITY,10,#VALUE!.
MLA Li, Y.,et al."Preparation and properties of porous reaction-bonded SiC ceramic using Si3N4 as silicon source".MATERIALS TODAY SUSTAINABILITY 10(2020):#VALUE!.
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