堇青石原料粒径对堇青石陶瓷烧结性能的影响

发布时间：2018-05-24 04:37

本文选题：堇青石 + 原料粒径　；参考：《耐火材料》2017年01期

【摘要】：为了研究堇青石粉体原料粒径对制备堇青石陶瓷性能的影响,以平均粒径分别为10、23、37、58和99μm的5种堇青石粉料为原料,平均粒径为15μm的土豆淀粉为造孔剂,分别制备了堇青石致密陶瓷和多孔陶瓷,并对比研究了粉体粒径对两种陶瓷烧结性能的影响。结果表明:在相同的烧成制度下,堇青石粉体的平均粒径越大,纯堇青石陶瓷的显气孔率和线收缩率越大,体积密度越小;添加淀粉后,陶瓷材料的显气孔率明显提高,体积密度降低,且因原料粒径不同,增加和降低的幅度不同;但淀粉加入后,多孔陶瓷材料的性能随原料粒径的增大无明显变化。
[Abstract]:In order to study the effect of cordierite powder size on the properties of cordierite ceramics, five kinds of cordierite powders with average particle sizes of 10233758 and 99 渭 m were used as raw materials and potato starch with average diameter of 15 渭 m as pore-forming agent. Cordierite dense ceramics and porous ceramics were prepared, and the effects of powder particle size on sintering properties of the two ceramics were studied. The results show that the larger the average particle size of cordierite powder is, the larger the apparent porosity and linear shrinkage of pure cordierite ceramics are, and the smaller the bulk density is, the higher the apparent porosity of cordierite powders is after the addition of starch, the larger the average particle size of cordierite powder is, the smaller the apparent porosity and linear shrinkage of cordierite ceramics are. The volume density is decreased and the increase and decrease range is different because of the different particle size of the raw material, but the properties of the porous ceramic material have no obvious change with the increase of the particle size of the raw material after the addition of starch.
【作者单位】：北京市特种陶瓷与耐火材料重点实验室中国钢研科技集团有限公司;
【基金】：中国钢研科技集团有限公司科技基金资助项目
【分类号】：TQ174.1

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