Fabrication and properties of a dense SiC NWs-toughened α-Si3N4 composite coating on porous Si3N4 ceramics

doi:10.1111/ijac.13419

	Fabrication and properties of a dense SiC NWs-toughened α-Si3N4 composite coating on porous Si3N4 ceramics
	Shangguan, Duandan 1; Wang, Binglei 1; Wang, Chao 1; Zhang, Fan 1; Bai, Yu 1; Wang, Zhanjie 1; Lu, Xuefeng2
	2020-03-01
发表期刊	International Journal of Applied Ceramic Technology
ISSN	1546542X
卷号	17 期号:2 页码:501-508
摘要	A dense SiC nanowires-toughened α-Si3N4 coating was prepared using a two-step technique for protecting porous Si3N4 ceramic against mechanical damage, and effect of SiC nanowires content on microstructures and properties of the coating were investigated. XRD, SEM and TEM analysis results revealed that as-prepared coatings consisted of α-Si3N4, O'-Sialon, SiC nanowires and Y–Al–Si–O–N glass phase. Furthermore, Vickers hardness of the coated porous Si3N4 ceramics increased gradually with the increasing SiC nanowires content from 0 to 10 wt%, which is attributed to the gradual improvement in intrinsic elastic modulus (E), hardness (H) and H3/E2 of the coatings. But, when the SiC nanowires content was 15 wt%, the thickness of the coating became relatively thinner, so that its protective ability was weakened and Vickers hardness started to decrease accordingly. Meanwhile, the assistance of SiC nanowires enhanced fracture toughness of the coatings obviously because SiC nanowires in the coatings can produce various toughening mechanisms during mechanical damage. When the SiC nanowires content was 10 wt%, its fracture toughness reached the maximum value, which was 6.27 ± 0.05 MPa·m1/2. © 2019 The American Ceramic Society
关键词	Aluminum coatings Aluminum compounds Aluminum metallography Composite coatings Fracture toughness Nanowires Silicon Silicon carbide Silicon compounds Vickers hardness Glass phase Mechanical damages Microstructures and properties porous Si3N4 properties SiC nanowire Toughening mechanisms Two-step technique
DOI	10.1111/ijac.13419
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000497075300001
出版者	Blackwell Publishing Ltd
EI入藏号	20194707718060
EI主题词	Yttrium compounds
EI分类号	531.2 Metallography - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 761 Nanotechnology - 804.2 Inorganic Compounds - 813.2 Coating Materials - 933 Solid State Physics
来源库	Compendex
分类代码	531.2 Metallography - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 761 Nanotechnology - 804.2 Inorganic Compounds - 813.2 Coating Materials - 933 Solid State Physics
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115406
专题	材料科学与工程学院
通讯作者	Wang, Chao
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Shangguan, Duandan,Wang, Binglei,Wang, Chao,et al. Fabrication and properties of a dense SiC NWs-toughened α-Si3N4 composite coating on porous Si3N4 ceramics[J]. International Journal of Applied Ceramic Technology,2020,17(2):501-508.
APA	Shangguan, Duandan.,Wang, Binglei.,Wang, Chao.,Zhang, Fan.,Bai, Yu.,...&Lu, Xuefeng.(2020).Fabrication and properties of a dense SiC NWs-toughened α-Si3N4 composite coating on porous Si3N4 ceramics.International Journal of Applied Ceramic Technology,17(2),501-508.
MLA	Shangguan, Duandan,et al."Fabrication and properties of a dense SiC NWs-toughened α-Si3N4 composite coating on porous Si3N4 ceramics".International Journal of Applied Ceramic Technology 17.2(2020):501-508.