Determination of the sintering behaviour of apatite using multiple characterization techniques

This study was aimed to carrying out preliminary research in determining dopant anion and cation diffusion heat in the natural apatite structure. According to the results, it was found that the diffusion of the additive atoms between the two heat stages would increase. It was also found that for the diffusion and high relative density, the first stage should be sintered at 800-850 & DEG;C, and the second stage should be at 1080-1250 & DEG;C. In the case of sintering in a gas atmosphere at the second stage, it was established that the anions could resettle in the apatite structure and a highly stabilized apatite structure could be formed. Apatite, expanding after 1085 & DEG;C, shows that sintering under pressure rather than solid-state sintering would increase particle-to-particle interaction and higher relative density could be sustained.

Automated summary

This study aimed to investigate the diffusion heat of dopant anions and cations in the natural apatite structure. The results showed that the diffusion of additive atoms increased between the two heat stages. It was also found that sintering at temperatures of 800-850°C for the first stage and 1080-1250°C for the second stage resulted in optimal diffusion and high relative density. When sintered in a gas atmosphere, the anions could resettle in the apatite structure, leading to a highly stabilized structure. Additionally, sintering under pressure instead of solid-state sintering increased particle-to-particle interaction and maintained higher relative density.