Physico-chemical properties and microstructure of hydroxyapatite-316L stainless steel biomaterials

  • Zou Jian-peng 
  • Ruan Jian-ming 
  • Huang Bai-yun 
  • Liu Jian-ben 
  • Zhou Xiao-xia 
Article

DOI: 10.1007/s11771-004-0024-3

Cite this article as:
Zou, J., Ruan, J., Huang, B. et al. J Cent. South Univ. Technol. (2004) 11: 113. doi:10.1007/s11771-004-0024-3

Abstract

Sintering shrinkage, compressive strength, bending strength, metallurgical morphology, microstructure and chemical composition diffusion of hydroxyapatite-316L stainless steel (HA-316L SS) composites were investigated. The results show that the sintering shrinkage of HA-316L SS composites decreases from 27.38% to 8.87% for cylinder sample or from 27.18% to 8.62% for cuboid sample with decreasing the volume ratio of HA to 316L SS, which leads to higher sintering activity of HA compared with that of 316L SS. The compressive strength of HA-316L SS composites changes just like parabolic curve (245.3→126.3→202.8 MPa) with reducing the volume ratio of HA to 316L SS. Bending strength increases from 86.3MPa to 124.2 MPa with increasing the content of 316L SS. Furthermore, comprehensive mechanical properties of 1.0:3.0 (volume ratio of HA to 316L SS) composite are optimal with compressive strength and bending strength equal to 202.8 MPa and 124.2 MPa, respectively. The microstructure and metallurgical structure vary regularly with the volume ratio of HA to 316L SS. Some chemical reaction takes place at the interface of the composites during sintering.

Key words

hydroxyapatite-316L stainless steelbiomaterialsintering activitymechanical propertymicrostructureSEMEDXA

CLC number

TB333

Copyright information

© Science Press 1998

Authors and Affiliations

  • Zou Jian-peng 
    • 1
  • Ruan Jian-ming 
    • 1
  • Huang Bai-yun 
    • 1
  • Liu Jian-ben 
    • 1
    • 2
  • Zhou Xiao-xia 
    • 1
  1. 1.State Key Laboratory for Powder MetallurgyCentral South UniversityChangshaChina
  2. 2.Department of ChemistryJishou UniversityJishouChina