CaO耐火材料的抗热震性能

THERMAL SHOCK RESISTANCE OF CaO TYPE REFRACTORY

采用特种粘结剂，控制工艺参数（如粒度配比、成型压力、烧结温度以及Ｚｒｏ_２添加剂含量等），制备Ｔ ＣａＯ耐火材料，测量了力学和物理性能．用中心加热法研究了 ＣａＯ耐火材料的抗热震性能．结果表明．在合适的粒度分布及烧结温度下，添加Ｚｒｏ_２颗粒能显著提高 ＣａＯ耐火材料的抗热震性能.

A special adhesive that is developed in IMR was used in preparation of CaO crucible. CaO refractory specimens were made by control of various parameters, such as particles distribution, forming pressure, sintering temperature and content of ZrO2 additive, and their mechanical and physical properties were measured. A new testing method - center heating technique was employed for quantitatively studying the thermal shock resistance of CaO refractory. The results show that ZrO2 additive can remarkably improve the thermal shock resistance of CaO refractory at the suitable particles distribution and sintering temperature.