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Fabrication and properties of hydroxyapatite-ti network composites

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Fabrication and properties of hydroxyapatite-ti network composites
นักวิจัย : Xiu, Zhimeng. , Liu, Yi. , Li, Jiguang. , Huo, Di. , Li, Xiaodong. , Sun, Xudong. , Duan, Kai. , Hu, Xiaozhi.
คำค้น : Experimental development. , 920116 Skeletal System and Disorders (incl. Arthritis) , 090301 Biomaterials. , 090399 Biomedical Engineering not elsewhere classified. , Biomedical engineering. , Hydroxyapatite coating. , Biomedical materials. , Composite materials. , Hydroxyapatite -- Titanium -- Biocomposite -- Mechanical properties -- Hemolysis test
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2551
อ้างอิง : http://hdl.cqu.edu.au/10018/27406 , cqu:4183
ที่มา : Xiu, Z Liu, Y Li, J Huo, D Li, X Sun, X Duan, K & Hu, X 2008, "Fabrication and properties of hydroxyapatite-ti network composites", Advanced Materials Research, vol.41-42, pp.41-48.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Advanced materials research. Switzerland. : Trans Tech Publications, 2008. Vol. 41-42 (2008), p. 41-48 8 pages Refereed 1022-6680 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Hydroxyapatite (HA) powder was synthesized by a sol-gel method with Ca(OH)2 and H3PO4 as reactants. The HA granules were then coated with TiH2 powder using a mechanical mixing method. The HA-TiH2 material system produced HA-Ti composites after hot-pressing at 1050ºC. The HA-Ti composites are mainly composed of HA and Ti, with small amounts of Ca2P2O7and Ca3(PO4)2 phases. Fracture toughness and bending strength are 2.4 MPa·m1/2 and 54.3 MPa, respectively for the HA-20vol%Ti composite, higher than those of the pure HA ceramic. The improvement in properties is because of the unique 3D network structure of Ti, which is an ideal reinforcement structure for the weak and brittle HA. According to ISO/TR 7405-1984, hemolysistest was performed to evaluate the blood compatibility of the material. The results show that the hemolysis rate of the HA-20vol%Ti composite is 0.56%. Relative growth rates (RGR) of L-929 cells soaked after 6 days in the HA-20vol%Ti group, pure Ti group, black group and pure Pb groupwere 132%, 100%, 90% and 6% respectively, while the level of cytotoxicity was grade 0 in HA-Ticomposite group. These results imply that the HA-20vol%Ti composite has good biocompatibility and bioactivity.

บรรณานุกรม :
Xiu, Zhimeng. , Liu, Yi. , Li, Jiguang. , Huo, Di. , Li, Xiaodong. , Sun, Xudong. , Duan, Kai. , Hu, Xiaozhi. . (2551). Fabrication and properties of hydroxyapatite-ti network composites.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Xiu, Zhimeng. , Liu, Yi. , Li, Jiguang. , Huo, Di. , Li, Xiaodong. , Sun, Xudong. , Duan, Kai. , Hu, Xiaozhi. . 2551. "Fabrication and properties of hydroxyapatite-ti network composites".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Xiu, Zhimeng. , Liu, Yi. , Li, Jiguang. , Huo, Di. , Li, Xiaodong. , Sun, Xudong. , Duan, Kai. , Hu, Xiaozhi. . "Fabrication and properties of hydroxyapatite-ti network composites."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2551. Print.
Xiu, Zhimeng. , Liu, Yi. , Li, Jiguang. , Huo, Di. , Li, Xiaodong. , Sun, Xudong. , Duan, Kai. , Hu, Xiaozhi. . Fabrication and properties of hydroxyapatite-ti network composites. กรุงเทพมหานคร : Central Queensland University, Australia; 2551.