【摘要】 为了改善电熔CaO材料的抗热震性能和抗水化性能,以电熔CaO（5～3、3～1、≤1和≤0. 074 mm）为原料,单斜ZrO₂（≤0. 074 mm）为添加剂,热固性酚醛树脂为结合剂,经配料、成型、烘干、1 600℃热处理3 h后,制备了CaO材料。研究了单斜ZrO₂加入量（w）分别为0、5%、10%、15%时对CaO材料的抗热震性能和显微结构的影响。结果表明:添加单斜ZrO₂可以有效提高CaO材料的抗热震性能;随着单斜ZrO₂加入量的增加,试样的抗热震性能提高;综合考虑材料力学性能和抗热震性能,单斜ZrO₂加入量（w）为10%时最合适;加入单斜ZrO₂可以显著提高试样的抗水化性能,添加量为10%（w）时,试样的抗水化性能最好。更多还原

【Abstract】 This work aims at improving the thermal shock resistance and the hydration resistance of fused CaO materials. Fused CaO（ 5-3 mm,3-1 mm,1-0 mm and ≤0. 074 mm） was used as the raw material,monoclinic ZrO₂（ ≤0. 074 mm） as an additive,and thermosetting phenolic resin as a binder. The materials were batched,shaped,dried and fired at 1 600 ℃ for 3 h to obtain CaO specimens. The effect of the monoclinic ZrO₂ addition（ 0,5%,10% and 15%,by mass） on the thermal shock resistance and microstructure of CaO materials was investigated. The results show that monoclinic ZrO₂ can improve the thermal shock resistance of CaO material effectively; with the increasing addition of monoclinic ZrO₂,the thermal shock resistance of the specimens improves; in consideration of the mechanical properties and thermal shock resistance,the optimal addition of monoclinic ZrO₂ is 10%; the addition of monoclinic ZrO₂ can significantly improve the hydration resistance of the specimens; the specimen with 10% monoclinic ZrO₂ has the best hydration resistance.更多还原