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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
Source PublicationMATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN0928-4931
Volume63Pages:37-45
AbstractIn 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.
description.department[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
KeywordSelective Laser Melting Dental Application Cocrw Alloy Cu Element Bonding Strength
Subject AreaMaterials Science
Funding OrganizationNational Pilot Projects [XDA09020301]
Indexed Bysci
Language英语
WOS IDWOS:000374916800005
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75865
Collection中国科学院金属研究所
Corresponding AuthorLin, 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.
Recommended Citation
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.
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