Fabrication and microstructure of CaTiO 3 coating by laser cladding

Xiaowei Lü; Xin Lin; Xiaoyu Wu; Jiang Hu; Bo Gao; Weidong Huang

doi:10.1007/s11595-011-0369-z

Fabrication and microstructure of CaTiO ₃ coating by laser cladding

Xiaowei Lü
, Xin Lin
, Xiaoyu Wu
, Jiang Hu
, Bo Gao
, Weidong Huang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In order to explore the way to improve the adhesion of the calcium phosphate bioceramic coating to Ti substrate, the CaTiO ₃ coating was fabricated on Ti substrate by laser cladding (LC) using powders of CaCO and CaHPO ₄ and then the composition and microstructure of the coatings were investigated. During LC, CaCO ₃ can hardly react with Ti, and the coating fabricated using CaCO ₃ powder is mainly composed of the process of CaO, the decomposition product of CaCO ₃. Moreover, the coating has a loosened structure and part of it has peeled off from the substrate. CaHPO ₄ reacts vigorously with Ti, and the coating fabricated using CaHPO ₄ mainly consists of CaTiO ₃ which is one of the reaction products between Ti and CaHPO ₄. Chemical bonding is formed at the interface between coating and substrate, which may enhance the adhesion of the CaTiO ₃ coating to Ti substrate. Furthermore, CaTiO ₃ dendrite and eutectic of CaTiO ₃ and Ca ₂P ₂O ₇ are found on the surface of the coating, implying that a transition can be formed between CaTiO ₃ and some calcium phosphate bioceramic. So CaTiO ₃ coating fabricated using CaHPO ₄ can be a potential candidate to improve the adhesion between calcium phosphate coating and Ti substrate. However, there are also pores and cracks existing in the coating, which may degrade the mechanical properties of the coating.

Original language	English
Pages (from-to)	1093-1097
Number of pages	5
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	26
Issue number	6
DOIs	https://doi.org/10.1007/s11595-011-0369-z
State	Published - Dec 2011

Keywords

CaCO
CaHPO
CaTiO coating
Laser cladding
Ti substrate

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title = "Fabrication and microstructure of CaTiO 3 coating by laser cladding",

abstract = "In order to explore the way to improve the adhesion of the calcium phosphate bioceramic coating to Ti substrate, the CaTiO 3 coating was fabricated on Ti substrate by laser cladding (LC) using powders of CaCO and CaHPO 4 and then the composition and microstructure of the coatings were investigated. During LC, CaCO 3 can hardly react with Ti, and the coating fabricated using CaCO 3 powder is mainly composed of the process of CaO, the decomposition product of CaCO 3. Moreover, the coating has a loosened structure and part of it has peeled off from the substrate. CaHPO 4 reacts vigorously with Ti, and the coating fabricated using CaHPO 4 mainly consists of CaTiO 3 which is one of the reaction products between Ti and CaHPO 4. Chemical bonding is formed at the interface between coating and substrate, which may enhance the adhesion of the CaTiO 3 coating to Ti substrate. Furthermore, CaTiO 3 dendrite and eutectic of CaTiO 3 and Ca 2P 2O 7 are found on the surface of the coating, implying that a transition can be formed between CaTiO 3 and some calcium phosphate bioceramic. So CaTiO 3 coating fabricated using CaHPO 4 can be a potential candidate to improve the adhesion between calcium phosphate coating and Ti substrate. However, there are also pores and cracks existing in the coating, which may degrade the mechanical properties of the coating.",

keywords = "CaCO, CaHPO, CaTiO coating, Laser cladding, Ti substrate",

author = "Xiaowei L{\"u} and Xin Lin and Xiaoyu Wu and Jiang Hu and Bo Gao and Weidong Huang",

year = "2011",

month = dec,

doi = "10.1007/s11595-011-0369-z",

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TY - JOUR

T1 - Fabrication and microstructure of CaTiO 3 coating by laser cladding

AU - Lü, Xiaowei

AU - Lin, Xin

AU - Wu, Xiaoyu

AU - Hu, Jiang

AU - Gao, Bo

AU - Huang, Weidong

PY - 2011/12

Y1 - 2011/12

N2 - In order to explore the way to improve the adhesion of the calcium phosphate bioceramic coating to Ti substrate, the CaTiO 3 coating was fabricated on Ti substrate by laser cladding (LC) using powders of CaCO and CaHPO 4 and then the composition and microstructure of the coatings were investigated. During LC, CaCO 3 can hardly react with Ti, and the coating fabricated using CaCO 3 powder is mainly composed of the process of CaO, the decomposition product of CaCO 3. Moreover, the coating has a loosened structure and part of it has peeled off from the substrate. CaHPO 4 reacts vigorously with Ti, and the coating fabricated using CaHPO 4 mainly consists of CaTiO 3 which is one of the reaction products between Ti and CaHPO 4. Chemical bonding is formed at the interface between coating and substrate, which may enhance the adhesion of the CaTiO 3 coating to Ti substrate. Furthermore, CaTiO 3 dendrite and eutectic of CaTiO 3 and Ca 2P 2O 7 are found on the surface of the coating, implying that a transition can be formed between CaTiO 3 and some calcium phosphate bioceramic. So CaTiO 3 coating fabricated using CaHPO 4 can be a potential candidate to improve the adhesion between calcium phosphate coating and Ti substrate. However, there are also pores and cracks existing in the coating, which may degrade the mechanical properties of the coating.

AB - In order to explore the way to improve the adhesion of the calcium phosphate bioceramic coating to Ti substrate, the CaTiO 3 coating was fabricated on Ti substrate by laser cladding (LC) using powders of CaCO and CaHPO 4 and then the composition and microstructure of the coatings were investigated. During LC, CaCO 3 can hardly react with Ti, and the coating fabricated using CaCO 3 powder is mainly composed of the process of CaO, the decomposition product of CaCO 3. Moreover, the coating has a loosened structure and part of it has peeled off from the substrate. CaHPO 4 reacts vigorously with Ti, and the coating fabricated using CaHPO 4 mainly consists of CaTiO 3 which is one of the reaction products between Ti and CaHPO 4. Chemical bonding is formed at the interface between coating and substrate, which may enhance the adhesion of the CaTiO 3 coating to Ti substrate. Furthermore, CaTiO 3 dendrite and eutectic of CaTiO 3 and Ca 2P 2O 7 are found on the surface of the coating, implying that a transition can be formed between CaTiO 3 and some calcium phosphate bioceramic. So CaTiO 3 coating fabricated using CaHPO 4 can be a potential candidate to improve the adhesion between calcium phosphate coating and Ti substrate. However, there are also pores and cracks existing in the coating, which may degrade the mechanical properties of the coating.

KW - CaCO

KW - CaHPO

KW - CaTiO coating

KW - Laser cladding

KW - Ti substrate

UR - https://www.scopus.com/pages/publications/84861828815

U2 - 10.1007/s11595-011-0369-z

DO - 10.1007/s11595-011-0369-z

M3 - 文章

AN - SCOPUS:84861828815

SN - 1000-2413

VL - 26

SP - 1093

EP - 1097

JO - Journal Wuhan University of Technology, Materials Science Edition

JF - Journal Wuhan University of Technology, Materials Science Edition

IS - 6

ER -

Fabrication and microstructure of CaTiO ₃ coating by laser cladding

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