Microstructure and mechanical properties of 3D C-f/SiBCN composites fabricated by polymer infiltration and pyrolysis

doi:10.1007/s40145-020-0414-5

SIC OpenIR

	Microstructure and mechanical properties of 3D C-f/SiBCN composites fabricated by polymer infiltration and pyrolysis
	Chen, BW; Ding, Q; Ni, DW; Wang, HD; Ding, YS; Zhang, XY; Dong, SM
	2020-11-28
Source Publication	JOURNAL OF ADVANCED CERAMICS
ISSN	2226-4108
Subtype	Article; Early Access
Abstract	In this work, three-dimensional (3D) C-f/SiBCN composites were fabricated by polymer infiltration and pyrolysis (PIP) with poly(methylvinyl)borosilazane as SiBCN precursor. The 3D microstructure evolution process of the composites was investigated by an advanced X-ray computed tomography (XCT). The effect of dicumyl peroxide (DCP) initiator addition on the crosslinking process, microstructure evolution, and mechanical properties of the composites were uncovered. With the addition of a DCP initiator, the liquid precursor can cross-linking to solid-state at 120 degrees C. Moreover, DCP addition decreases the release of small molecule gas during pyrolysis, leading to an improved ceramic yield 4.67 times higher than that without DCP addition. After 7 PIP cycles, density and open porosity of the final C-f/SiBCN composite with DCP addition are 1.73 g center dot cm(-3) and similar to 10%, respectively, which are 143.0% higher and 30.3% lower compared with the composites without DCP addition. As a result, the flexural strength and elastic modulus of C-f/SiBCN composites with DCP addition (371 MPa and 31 GPa) are 1.74 and 1.60 times higher than that without DCP addition (213 MPa and 19.4 GPa), respectively.
DOI	10.1007/s40145-020-0414-5
WOS Keyword	PRECURSOR ; BEHAVIOR ; MATRIX ; POLYCARBOSILANE ; IMPREGNATION ; DESIGN
Language	英语
WOS Research Area	Materials Science
Publisher	SPRINGER
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27613
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Chen, BW,Ding, Q,Ni, DW,et al. Microstructure and mechanical properties of 3D C-f/SiBCN composites fabricated by polymer infiltration and pyrolysis[J]. JOURNAL OF ADVANCED CERAMICS,2020.
APA	Chen, BW.,Ding, Q.,Ni, DW.,Wang, HD.,Ding, YS.,...&Dong, SM.(2020).Microstructure and mechanical properties of 3D C-f/SiBCN composites fabricated by polymer infiltration and pyrolysis.JOURNAL OF ADVANCED CERAMICS.
MLA	Chen, BW,et al."Microstructure and mechanical properties of 3D C-f/SiBCN composites fabricated by polymer infiltration and pyrolysis".JOURNAL OF ADVANCED CERAMICS (2020).

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院上海硅酸盐研究所机构知识库