The process of electrochemical deposited hydroxyapatite coatings on biomedical titanium at room temperature

被引:282
作者
Kuo, MC [1 ]
Yen, SK [1 ]
机构
[1] Natl Chung Hsing Univ, Inst Mat Engn, Taichung 40227, Taiwan
来源
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2002年 / 20卷 / 1-2期
关键词
hydroxyapatite; electrochemical deposition; Ti; room temperature process;
D O I
10.1016/S0928-4931(02)00026-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Calcium phosphate (CaP) ceramics, especially hydroxyapatite (HA), have received much attention and have been clinically applied in orthopaedics and dentistry due to their excellent biocompatibility. Among several methods for preparing HA coating, electrochemical deposition is a relatively new and possible process. However, documented electrochemical processes were conducted at elevated temperature. In this study, uniform HA coatings have been directly deposited on titanium at room temperature. X-ray diffractometry (XRD) results demonstrated that dicalcium phosphate dihydrate (CaHPO4.2H(2)O, DCPD) was the main component of the coating deposited at lower current densities (1 and 5 mA/cm(2)). HA structure was obtained at current density above 10 mA/cm(2) and remained stable after heat treatment at 100-600 degreesC for 1 h. Part of HA phase was transformed into beta-TCP and became a biphasic calcium phosphate coating after annealing at 700 degreesC. Scratch tests showed that HA coating was not scraped off until a shear stress of 106.3 MPa. Coatings deposited at room temperature exhibited stronger adhesion than those at elevated temperature. HA coating revealed a dense inner layer and rough surface morphology which could fulfill the requisition of implant materials and be adequate to the attachment of bone tissue. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:153 / 160
页数:8
相关论文
共 27 条
  • [1] EFFECT OF TEMPERATURE ON ELECTROCHEMICAL DEPOSITION OF CALCIUM-PHOSPHATE COATINGS IN A SIMULATED BODY-FLUID
    BAN, SJ
    MARUNO, S
    [J]. BIOMATERIALS, 1995, 16 (13) : 977 - 981
  • [2] COOK SD, 1988, CLIN ORTHOP RELAT R, P225
  • [3] Biphasic calcium phosphate concept applied to artificial bone, implant coating and injectable bone substitute
    Daculsi, G
    [J]. BIOMATERIALS, 1998, 19 (16) : 1473 - 1478
  • [4] PLASMA SPRAYED COATINGS OF HYDROXYLAPATITE
    DEGROOT, K
    GEESINK, R
    KLEIN, CPAT
    SEREKIAN, P
    [J]. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1987, 21 (12): : 1375 - 1381
  • [5] Ding SJ, 1999, J BIOMED MATER RES, V44, P266, DOI 10.1002/(SICI)1097-4636(19990305)44:3<266::AID-JBM5>3.0.CO
  • [6] 2-4
  • [7] CALCIUM-PHOSPHATE CERAMIC COATINGS ON POROUS TITANIUM - EFFECT OF STRUCTURE AND COMPOSITION ON ELECTROPHORETIC DEPOSITION, VACUUM SINTERING AND INVITRO DISSOLUTION
    DUCHEYNE, P
    RADIN, S
    HEUGHEBAERT, M
    HEUGHEBAERT, JC
    [J]. BIOMATERIALS, 1990, 11 (04) : 244 - 254
  • [8] Bone tissue reactions to an electrophoretically applied calcium phosphate coating
    Gottlander, M
    Johansson, CB
    Wennerberg, A
    Albrektsson, T
    Radin, S
    Ducheyne, P
    [J]. BIOMATERIALS, 1997, 18 (07) : 551 - 557
  • [9] Huaxia J I, 1992, J MATER SCI-MATER M, V3, P283
  • [10] JARCHO M, 1981, CLIN ORTHOP RELAT R, P259