NDLI: Microstructure, mechanical property and corrosion behavior of interpenetrating (HA+ß-TCP)/MgCa composite fabricated by suction casting.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, X. Dong, L. H. Li, J. T. Li, X. L. Ma, X. L. Zheng, Y. F.
Description	Country affiliation: China Author Affiliation: Wang X ( Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, China. wangxiang@hrbeu.edu.cn)
Abstract	The novel interpenetrating (HA+ß-TCP)/MgCa composites were fabricated by infiltrating MgCa alloy into porous HA+ß-TCP using suction casting technique. The microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical testing, electrochemical and immersion tests. It was shown that the composites had compact structure and the interfacial bonding between MgCa alloy and HA+ß-TCP scaffolds was very well. The ultimate compressive strength of the composites was about 500-1000 fold higher than that of the original porous scaffolds, and it still retained quarter-half of the strength of the bulk MgCa alloy. The electrochemical and immersion tests indicated that the corrosion resistance of the composites was better than that of the MgCa matrix alloy, and the corrosion products of the composite surface were mainly Mg(OH)2, HA and Ca3(PO4)2. Meanwhile, the mechanical and corrosive properties of the (HA+ß-TCP)/MgCa composites were adjustable by the choice of HA content.
File Format	HTM / HTML
ISSN	09284931
Issue Number	7
Volume Number	33
e-ISSN	18730191
Journal	Materials Science and Engineering: C
Language	English
Publisher	Elsevier
Publisher Date	2013-10-01
Publisher Place	Netherlands
Access Restriction	Subscribed
Subject Keyword	Discipline Materials Science Alloys Chemistry Calcium Phosphates Corrosion Casting Methods Durapatite Materials Testing Mechanical Phenomena Body Fluids Calcium Analysis Compressive Strength Electricity Electrochemical Techniques Humans Hydrogen-ion Concentration Magnesium Porosity Solutions Surface Properties Tissue Scaffolds X-ray Diffraction Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Biomaterials Condensed Matter Physics Bioengineering Mechanical Engineering

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