Interfacial optimization of SiC nanocomposites reinforced by SiC nanowires with high volume fraction

doi:10.1111/jace.16513

	Interfacial optimization of SiC nanocomposites reinforced by SiC nanowires with high volume fraction
	Ruan, Jing; Yang, Jinshan; Dong, Shaoming; Yan, Jingyi; Zhang, Xiangyu; Ding, Yusheng; Zhou, Haijun; Hu, Jianbao
刊名	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
	2019-09-01
卷号	102 期号:9 页码:5033
关键词	chemical vapor infiltration nanocomposite nanoindentation transmission electron microscopy
ISSN号	0002-7820
DOI	10.1111/jace.16513
文献子类	Article
英文摘要	High volume fraction SiC nanowires-reinforced SiC composites (SiCNWs/SiC) were prepared by hybrid process of chemical vapor infiltration and polymer impregnation/pyrolysis in this research. SiCNWs networks are first to be made promising a high volume fraction (20vol%), and the pyrolytic carbon (PyC) interphase with 5nm is designed on SiCNWs surface to optimize the bonding condition between SiCNWs and SiC matrix. Nanoindentation shows a modulus of 494 +/- 14GPa of SiCNWs/SiC composites without interphase comparing to the one with PyC interphase of 452 +/- 13GPa. However, the 3-point bending test shows a higher strength of the composite with PyC interphase (273 +/- 32MPa) comparing with the one without interphase (240 +/- 38MPa). The fracture surface is observed under SEM, which shows a longer SiCNWs pullout of the composite with PyC interphase. The energy dissipation during the 3-point bending test is calculated by the length of nanowire pull-out, it demonstrates that the SiCNWs with PyC interphase possess better performance for toughening composite. Further characterization proves that the PyC interphase can give SiCNWs/SiC composites higher fracture toughness (4.49 +/- 0.44MPam(1/2)) than the composites without interphase (3.66 +/- 0.28MPam(1/2)).
WOS研究方向	Materials Science
语种	英语
出版者	WILEY
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26877]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Ruan, Jing,Yang, Jinshan,Dong, Shaoming,et al. Interfacial optimization of SiC nanocomposites reinforced by SiC nanowires with high volume fraction[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019,102(9):5033.
APA	Ruan, Jing.,Yang, Jinshan.,Dong, Shaoming.,Yan, Jingyi.,Zhang, Xiangyu.,...&Hu, Jianbao.(2019).Interfacial optimization of SiC nanocomposites reinforced by SiC nanowires with high volume fraction.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,102(9),5033.
MLA	Ruan, Jing,et al."Interfacial optimization of SiC nanocomposites reinforced by SiC nanowires with high volume fraction".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 102.9(2019):5033.