%0 Journal Article
%T Hydroxyapatite-Bioglass-Titanium Biomaterials Used as Dense Bulk in Double-layer Biomimetic Composite
%A Jianpeng ZOU
%A Jianming RUAN
%A Baiyun HUANG
%A Jianben LIU
%A Zhigang ZHAO
%A <br>Jianpeng ZOU
%A Jianming RUAN
%A Baiyun HUANG
%A Jianben LIU and Zhigang ZHAO State Key Laboratory for Powder Metallurgy
%A Central South University
%A Changsha
%A China
%J 材料科学技术学报
%D 2004
%I 
%X Sintering shrinkage, compressive strength, bending strength, chemical composition and their relationships with microstructure of HA-Ti and HA-BG-Ti biomaterials were studied. The results show that sintering shrinkage curve of HA-BG-Ti composite changes just like S shape (23.1%-16.2%-21.8%-17.1%) with increase of Ti content, and sintering shrinkage of HA-BG-Ti composite is always higher than that of HA-Ti composite. The approach also indicates that compressive strength and bending strength of HA-BG-Ti composite are always higher than that of HA-Ti composite. Basically, with its compressive strength and bending strength equaling to 211.5 MPa and 132.1 MPa respectively, HA-10 vol. pct BG-60 vol. pct Ti composite can meet the mechanical properties requirements of the outer dense bulk. Furthermore, microstructure analysis shows that interfacial integration of HA-BG-Ti composite is better than that of HA-Ti composite. From X-ray diffraction (XRD) and SEM-EDAX analysis, brittle new phases including calcium titanate and calcium carbonate are detected in HA-Ti composite. New phases in HA-Ti composite and complex strong binding force accompanied by elemental diffusion of Si, Ti in HA-BG-Ti composite can explain theoretically the great difference of mechanical properties of HA-Ti and HA-BG-Ti composites.
%K Hydroxyapatite-Titanium (HA-Ti)
%K Hydroxyapatite-Bidoglass-Titanium (HA-BG-Ti)
%K Sintering shrinkage
%K Mechanical properties
%K Microstructure
%K EDAX analysis<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=70EC3B97ABF7B3DD&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=94C357A881DFC066&sid=821800203AD09E7B&eid=039DCCB9394D9766&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=17