期刊
MATERIALS
卷 13, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/ma13225221
关键词
sintering; composites; mechanical properties; Si3N4
类别
资金
- National Science Centre [OPUS 130, UMO-2017/25/B/ST8/01205]
This paper discusses the influence of Ti3C2 (MXene) addition on silicon nitride and its impact on the microstructure and mechanical properties of the latter. Composites were prepared through powder processing and sintered using the spark plasma sintering (SPS) technic. Relative density, hardness and fracture toughness, were analyzed. The highest fracture toughness at 5.3 MPa center dot m(1/2) and the highest hardness at HV5 2217 were achieved for 0.7 and 2 wt.% Ti3C2, respectively. Moreover, the formation of the Si2N2O phase was observed as a result of both the MXene addition and the preservation of the alpha-Si3N4 ->beta-Si3N4 phase transformation during the sintering process.
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