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Effects of TaSi2 addition on room temperature mechanical properties of ZrB2-20SiC composites
Yang, Yang1,2; Qian, Yu-hai1; Xu, Jing-jun1; Li, Mei-shuan1
Corresponding AuthorQian, Yu-hai(yhqian@imr.ac.cn) ; Li, Mei-shuan(mshli@imr.ac.cn)
2018-10-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume44Issue:14Pages:16150-16156
AbstractThe effects of TaSi2 addition on the room temperature mechanical properties of ZrB2-20SiC (volume fraction, %) composite were investigated. Dense ZrB2-20SiC-xTaSi(2) (x = 3, 6, 10) composites were prepared by hot pressing the mixture of ZrB2, SiC and TaSi2 powders at 1850-1900 degrees C under 30 MPa in flowing Ar. In the as-prepared composites, apart from ZrB2, SiC and TaSi2, (Zr,Ta)B-2 solid solution also existed around ZrB2 grains. It became a continuous layer and the thickness increased gradually with the increase of TaSi2 content. When the addition of TaSi2 was within the range of 3-10%, Vickers hardness of ZrB2-2oSiC reduced slightly by about 1-2 GPa, but the flexural strength and fracture toughness increased simultaneously by more than 35%. These phenomena could be attributed to the relatively low hardness of TaSi2, and the decrease of ZrB2 grain size as well as the presence of a continuous (Zr,Ta)B-2 solid solution layer around ZrB2 grains.
KeywordZrB2-based ceramics Mechanical properties TaSi2 Microstructure
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.ceramint.2018.05.075
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571203] ; National Natural Science Foundation of China[51401209]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000442714100005
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129346
Collection中国科学院金属研究所
Corresponding AuthorQian, Yu-hai; Li, Mei-shuan
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yang,Qian, Yu-hai,Xu, Jing-jun,et al. Effects of TaSi2 addition on room temperature mechanical properties of ZrB2-20SiC composites[J]. CERAMICS INTERNATIONAL,2018,44(14):16150-16156.
APA Yang, Yang,Qian, Yu-hai,Xu, Jing-jun,&Li, Mei-shuan.(2018).Effects of TaSi2 addition on room temperature mechanical properties of ZrB2-20SiC composites.CERAMICS INTERNATIONAL,44(14),16150-16156.
MLA Yang, Yang,et al."Effects of TaSi2 addition on room temperature mechanical properties of ZrB2-20SiC composites".CERAMICS INTERNATIONAL 44.14(2018):16150-16156.
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