Hydroxyapatite deposited on flat and porous Ti

摘要：

Formation of porous Ti layer during electrochemicaletching in H3PO4+NH4F, subsequent deposition of calcium-phosphateand corrosion behavior of the materials was described.Anodic etching results in surface roughening with pits diameterin the range of 7-12 μm. The subsequent cathodic electrochemicaltreatment, results in hydroxyapatite (HA) deposition. The sourceof Ca and P were two types of electrolytes: 0.1M HCl+0.005MHA and 0.042M Ca(NO3)2+0.025M (NH4)2HPO4+0.1M HCl.The formed HA layer has lamellas structure. The depositedcalcium-phosphate layer could be useful for the osseointegrationand presents excellent corrosion resistance in simulated bodyfluids. The corrosion current Ic for flat Ti, porous Ti and porousTi with HA layer is: 3.9cm -2 , 2.52cm -2 and 1.07cm -2 respectively. It was found, that anodization andsubsequent calcium-phosphate deposition, results in bettercorrosion resistance of the samples, with comparison to thesample without these treatments.

作者: J.Jakubowicz G.Adamek

作者单位: Institute of Materials Science and Engineering Poznan University of Technology Poznan, Poland

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）