CAJ | 학술논문

以碳酸钡、碳酸钙和氧化铝为原料,设计配方在不同温度下煅烧,制备了铝酸钡-钙复相水泥.运用X射线粉末衍射(XRD)和扫描电子显微镜(SEM)等手段,对铝酸钡与铝酸钙在不同温度下的固溶过程及相转变进行了分析.结果表明:在升温过程中,首先形成大量的铝酸钡,随着温度升高,铝酸钙含量增多.同时,还出现了少量七铝酸十二钙、铝酸二钙和铝酸三钙.铝酸钡呈柱状,铝酸钡-钙固溶相主要由板状六角形或钝圆状小晶体堆积而成.
이탄산패、탄산개화양화려위원료,설계배방재불동온도하단소,제비료려산패-개복상수니.운용X사선분말연사(XRD)화소묘전자현미경(SEM)등수단,대려산패여려산개재불동온도하적고용과정급상전변진행료분석.결과표명:재승온과정중,수선형성대량적려산패,수착온도승고,려산개함량증다.동시,환출현료소량칠려산십이개、려산이개화려산삼개.려산패정주상,려산패-개고용상주요유판상륙각형혹둔원상소정체퇴적이성.
The aluminate cement clinker was successfully synthesized from starting materials of barium carbonate, alumina and calcium carbonate by designing mineral phase composition sintered at different temperatures. The formation mechanism of cement clinker was investigated by XRD and SEM. The results show that BaAl_2O_4 is mainly formed at relatively low temperatures, and then CaAl_2O_4 obviously increases with the increase of temperature in forming solid solution of BaAl_2O_4 and CaAl_2O_4. In addition, there exists a small amount of Ca_(12)Al_(14)O_(33), CaAl_2O_4 and Ca_3Al_2O_6. in cement clinker. BaAl_2O_4 is mostly present in the shape of puncheon, and solid solution of BaAl_2O_4 and CaAl_2O_4 is developed into hexagon and round crystals.