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Crystallization behavior of tantalum and chlorine co-substituted hydroxyapatite nanopowders
Bahman Nasiri-Tabrizi,Belinda Pingguan-Murphy,Wan Jefrey Basirun,Saeid Baradaran 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.33 No.-
The crystallization behavior of tantalum and chlorine co-substituted hydroxyapatite nanopowders wasexamined. Results showed that combined processing by mechanical alloying and annealing is conduciveto the structural changes and crystal growth. A series of nanocrystalline tantalum and chlorine cosubstitutedhydroxyapatite (Ta/Cl–HA) with different dopant contents were synthesized as a result ofthe progressive mechanochemical reaction. During the subsequent annealing, crystallization of the asmilledpowders occurred, leading to a significant increase in the fraction of crystalline phase. TEMimages revealed that the crystallized and doped nanopowders composed of crystalline nanoneedles withan average size of 61 26 nm.