化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2007年
1期
1-4
,共4页
共沉淀%α-磷酸三钙%粉体
共沉澱%α-燐痠三鈣%粉體
공침정%α-린산삼개%분체
coprecipitation%α-tricalcium phosphate(α-TCP)%Powder
以NH4HCO3、(NH4)2HPO4和Ca(NO3)2﹒4H2O为原料,由液相共沉淀法制得分子比2:1的CaHPO4和CaCO3混合粉体,经高温煅烧处理后制得α-磷酸三钙(α-TCP)粉末.用化学分析法分析了混合粉体的钙磷比,X 射线及透射电镜(TEM)分析了α-磷酸三钙粉末的晶相组成、微观形貌.结果表明,共沉淀的方法可以得到α-磷酸三钙;与机械混合法相比,共沉淀法制备的粉料在高温下有较快的α-磷酸三钙转化速率.
以NH4HCO3、(NH4)2HPO4和Ca(NO3)2﹒4H2O為原料,由液相共沉澱法製得分子比2:1的CaHPO4和CaCO3混閤粉體,經高溫煅燒處理後製得α-燐痠三鈣(α-TCP)粉末.用化學分析法分析瞭混閤粉體的鈣燐比,X 射線及透射電鏡(TEM)分析瞭α-燐痠三鈣粉末的晶相組成、微觀形貌.結果錶明,共沉澱的方法可以得到α-燐痠三鈣;與機械混閤法相比,共沉澱法製備的粉料在高溫下有較快的α-燐痠三鈣轉化速率.
이NH4HCO3、(NH4)2HPO4화Ca(NO3)2﹒4H2O위원료,유액상공침정법제득분자비2:1적CaHPO4화CaCO3혼합분체,경고온단소처리후제득α-린산삼개(α-TCP)분말.용화학분석법분석료혼합분체적개린비,X 사선급투사전경(TEM)분석료α-린산삼개분말적정상조성、미관형모.결과표명,공침정적방법가이득도α-린산삼개;여궤계혼합법상비,공침정법제비적분료재고온하유교쾌적α-린산삼개전화속솔.
CaHPO3 and CaCO3 mixture powder were synthesized from the NH4HCO3,(NH4)2HPO4 and Ca(NO3)2·4H2O by coprecipitating way. The mixed powder was calcined at high temperature, and to obtain α-tricalcium phosphate(α-TCP). Ca/P molecular ratio of the mixed powder was determined with chemical analysis method. The crystallite phase, micro-morphology and crystallite size of α-TCP powder were characterized by XRD and TEM . The results showed that α-TCP could be prepared with co-precipatited method, and obtained powder have more fast change rate towardsα-TCP phase at high temperature.
