Investigation of Physico-Chemical Properties and Microstructure of HA/316L Asymmetrical Functionally Gradient Biomaterial



By using of hot pressing(HP) technique, HA/316L powder asymmetrical functionally gradient biomaterial (FGM) with 316L’s content changing as 100vol%→80vol%→60vol%→40vol%→20vol%→0vol% was prepared successfully. The results show obvious macroscopic gradient changes in the FGM. While the components change continuously in microcosmic, the interfaces among all gradient layers integrate tightly. The addition of 316L powder changes the fracture modes of the composites and improves their mechanical properties. HA contents in HA/316L biological FGM change regularly with different gradient layer, which is responding to the components design. Combining circumstance of phase interface is considerably well and both phase bite into each other at the interface. The two phases of HA and 316L powder dissolve into each other in some degree during hot pressing and the combining mechanism is dissolving behavior.




Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He




J. P. Zou "Investigation of Physico-Chemical Properties and Microstructure of HA/316L Asymmetrical Functionally Gradient Biomaterial", Advanced Materials Research, Vols. 239-242, pp. 1062-1067, 2011


May 2011





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