In:
Solid State Phenomena, Trans Tech Publications, Ltd., Vol. 281 ( 2018-8), p. 361-366
Abstract:
High-performance three-dimensional boron nitride fiber reinforced silicon nitride (BN f /Si 3 N 4 ) composites were prepared by the infiltration and pyrolysis (PIP) process using BN fiber fabrics as the reinforcing body and excellent nitride organic precursor (Perhydropolysilazane, PHPS) as the Impregnated liquid. The ablation resistance of the composite was evaluated by plasma jet ablation test in air. The results show that a uniform and dense interface layer is formed on the fiber surface, with thickness is about 100 nm, and the XRD test shows that it is hexagonal BN (h-BN). The density of the composite reaches more than 1.72 g·cm - 3 and the bending strength is more than 80 MPa. Under the condition of plasma jet ablation test at 2000 °C / 200 s, the mass ablation rate is 3.32 × 10 - 4 g/s, the linear ablation rate is 4.78 × 10 -3 mm/s. The prepared materials have excellent resistance to high temperature ablation, and are expected to be used in the field of high temperature microwave transparent such as high mach missile radome, antenna window and so on.
Type of Medium:
Online Resource
ISSN:
1662-9779
DOI:
10.4028/www.scientific.net/SSP.281
DOI:
10.4028/www.scientific.net/SSP.281.361
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2018
detail.hit.zdb_id:
2051138-3
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