摘要
本文以商用材料为原料 ,用传统的固相法制备了 β TCP粉末。用DTG、TG、DTA测定了混合粉末加热过程中的重量变化和热流。用XRD相分析方法监测加热过程中每个步骤的相变。在分析测试的基础上分析了反应细节。制备的 β TCP粉末具有高温稳定性 ,测定出它从 β相到α相的相变温度为 135 0℃ ,比商用 β TCP粉末高 2 0 0℃。高的相变温度源于原材料中微量Mg的存在。
Starting from commercial materials,β-TCP powder was prepared by the conventional solid reaction route. Using DTG, TG and DTA, the mass change and the heat flow during heating of the commercial powder mixture were tested. The phase evolution of each step of the heating was monitored using XRD analyses. Based on the tests and the analyses the reaction details were analyzed. The β-TCP powder prepared in this study has high thermal stability. The phase transition temperature from β to α was determined 1350°C, which is 200°C higher than commercial β-TCP powder (Plasma Biotal). The high phase transition temperature was due to Mg trace in the starting materials.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2004年第6期855-859,共5页
Journal of Materials Science and Engineering
