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首页> 外文期刊>Transactions of the Indian Ceramic Society >Sintering of Mullite Precursor Powder Prepared by Semi-Colloidal Technique
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Sintering of Mullite Precursor Powder Prepared by Semi-Colloidal Technique

机译：半胶体法制备莫来石前体粉的烧结

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摘要

Precursor powder for the preparation of mullite was synthesized through a non-conventional semi-colloidal technique. The precursor powder was characterized by chemical analysis, DTA, measurement of surface area, bulk density and X-ray analysis. The powder was compacted with TiO_2 as additive in various proportions and the sintering of the compacted masses was studied by measuring the firing shrinkage, apparent porosity, bulk density and specific gravity. The phase development and phase distribution in the sintered masses were studied by XRD and SEM. It was observed that TiO_2 exhibited a positive influence on the formation of mullite from the said precursor powder at elevated temperatures. The grain size of the mullite crystals increased with the increase in TiO_2 content.
机译：通过非常规的半胶体技术合成了用于制备莫来石的前体粉末。通过化学分析，DTA，表面积测量，堆积密度和X射线分析来表征前体粉末。用各种比例的TiO_2作为添加剂将粉末压实，并通过测量烧成收缩率，表观孔隙率，堆积密度和比重来研究压实块的烧结。用XRD和SEM研究了烧结块中的相发展和相分布。观察到TiO 2对在高温下由所述前体粉末形成莫来石表现出积极的影响。莫来石晶体的晶粒尺寸随着TiO_2含量的增加而增加。

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