Preliminary assessment of metal-porcelain bonding strength of CoCrW alloy after 3 wt.% Cu addition

IMR OpenIR

	Preliminary assessment of metal-porcelain bonding strength of CoCrW alloy after 3 wt.% Cu addition
	Lu, Yanjin; Zhao, Chaoqian; Ren, Ling; Guo, Sai; Gan, Yiliang; Yang, Chunguang; Wu, Songquan; Lin, Junjie; Huang, Tingting; Yang, Ke; Lin, Jinxin; Lin, JX (reprint author), Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, 155 Yangqiao Rd West, Fuzhou 350002, Peoples R China.; Yang, K (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2016-06-01
发表期刊	MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN	0928-4931
卷号	63 页码:37-45
摘要	In this work, a novel Cu-bearing CoCrW alloy fabricated by selective laser melting for dental application has been studied. For its successful application, the bonding strength of metal-porcelain is essential to be systematically investigated. Therefore, the aim of this study was to evaluate the metal-porcelain bonding strength of CoCrWCu alloy by three-point bending test, meanwhile the Ni-free CoCrW alloy was used as control. The oxygen content was investigated by an elemental analyzer; X-ray photoelectron spectroscopy (XPS) was used to analyze the surface chemical composition of CoCrW based alloy after preoxidation treatment; the fracture mode was investigated by X-ray energy spectrum analysis (EDS) and scanning electron microscope (SEM). Result from the oxygen content analysis showed that the content of oxygen dramatically increased after the Cu addition. And the XPS suggested that Co-oxidation, Cr2O3, CrO2, WO3, Cu2O and CuO existed on the preoxidated surface of the CoCrWCu alloy; the three-point bending test showed that the bonding strength of the CoCrWCu alloy was 43.32 MPa, which was lower than that of the CoCrW group of 47.65 MPa. However, the average metal-porcelain bonding strength is significantly higher than the minimum value in the ISO 9693 standard. Results from the SEM images and EDS indicated that the fracture mode of CoCrWCu-porcelain was mixed between cohesive and adhesive. Based on the results obtained in this study, it can be indicated that the Cu-bearing CoCrW alloy fabricated by the selective laser melting is a promising candidate for use in dental application. (C) 2016 Elsevier B.V. All rights reserved.
部门归属	[lu, yanjin ; zhao, chaoqian ; guo, sai ; gan, yiliang ; wu, songquan ; lin, junjie ; huang, tingting ; lin, jinxin] chinese acad sci, fujian inst res struct matter, key lab optoelect mat chem & phys, 155 yangqiao rd west, fuzhou 350002, peoples r china ; [ren, ling ; yang, chunguang ; yang, ke] chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Selective Laser Melting Dental Application Cocrw Alloy Cu Element Bonding Strength
学科领域	Materials Science
资助者	National Pilot Projects [XDA09020301]
收录类别	sci
语种	英语
WOS记录号	WOS:000374916800005
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75865
专题	中国科学院金属研究所
通讯作者	Lin, JX (reprint author), Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, 155 Yangqiao Rd West, Fuzhou 350002, Peoples R China.; Yang, K (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Lu, Yanjin,Zhao, Chaoqian,Ren, Ling,et al. Preliminary assessment of metal-porcelain bonding strength of CoCrW alloy after 3 wt.% Cu addition[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2016,63:37-45.
APA	Lu, Yanjin.,Zhao, Chaoqian.,Ren, Ling.,Guo, Sai.,Gan, Yiliang.,...&Yang, K .(2016).Preliminary assessment of metal-porcelain bonding strength of CoCrW alloy after 3 wt.% Cu addition.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,63,37-45.
MLA	Lu, Yanjin,et al."Preliminary assessment of metal-porcelain bonding strength of CoCrW alloy after 3 wt.% Cu addition".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 63(2016):37-45.