In:
Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 697 ( 2016-7), p. 539-546
Abstract:
TiB 2 -SiC-Si composite was fabricated by reaction bonding. The influence of carbon content on the phase compositions, microstructure, density and mechanical properties was studied. The results showed that the composite consists of TiB 2 , SiC and Si phases. The vol% of SiC increased with the increase of C contents, while that of TiB 2 and free silicon reduced respectively. The mechanical properties of TiB 2 -SiC-Si composites are improved initially and then deteriorated with the increase in C contents of which the optimal amount is 8 %. The optimum open porosity, volume density, Vikers-hardness, flexural strength and fracture toughness of the obtained TiB 2 -SiC-Si composite are 0.12 %, 3.73 g/cm 3 , 17 GPa, 290 MPa and 5.9 MPa·m 1/2 , respectively.
Type of Medium:
Online Resource
ISSN:
1662-9795
DOI:
10.4028/www.scientific.net/KEM.697
DOI:
10.4028/www.scientific.net/KEM.697.539
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2016
detail.hit.zdb_id:
2073306-9
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