Sintering Behaviour of Nanosized HAP Powder
The influences of temperature and time on sintering behaviour of nanosized HAP powder were investigate in this paper. The calcium hydroxyapatite powder, with the average crystallite size of 34 ± 1 nm, was uniaxially pressed at a pressure of 500 MPa. Obtained green compacts were sintered at temperature ranging from 1000°C to 1200°C in air atmosphere at various times. According to the results of scanning electron microscopy, X-ray and FTIR analyses, it is shown that HAP compacts with dense microstructure and average grain size below 250 nm is obtained.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
D. Veljković et al., "Sintering Behaviour of Nanosized HAP Powder", Key Engineering Materials, Vols. 330-332, pp. 259-262, 2007