Fabrication and characterization of porous mullite ceramics

DAE SOLID STATE PHYSICS SYMPOSIUM 2018 Pub Date : 2019-07-12 DOI:10.1063/1.5112863

G. Kiran, Kundrapu Shyam Kumar, A. Yadav, S. Bhattacharyya

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引用次数: 1

Abstract

Porous mullite was fabricated from kaolin and alumina using naphthalene as a pore-former. For different wt.% of naphthalene addition, the apparent porosity (%) was analysed. The mechanical strength was estimated through flexural strength and diametral tensile strength. Fabricated pellets were sintered at 1400°C, 1500°C, 1600°C to study the effect of pore former on phase formation and porosity distribution through X-Ray diffraction study and FESEM microstructure analysis. The analysis showed 39.79% of porosity in the case of 20wt.% naphthalene addition with flexural strength of 21.93MPa. This pointed towards the application of this product as a membrane support material.Porous mullite was fabricated from kaolin and alumina using naphthalene as a pore-former. For different wt.% of naphthalene addition, the apparent porosity (%) was analysed. The mechanical strength was estimated through flexural strength and diametral tensile strength. Fabricated pellets were sintered at 1400°C, 1500°C, 1600°C to study the effect of pore former on phase formation and porosity distribution through X-Ray diffraction study and FESEM microstructure analysis. The analysis showed 39.79% of porosity in the case of 20wt.% naphthalene addition with flexural strength of 21.93MPa. This pointed towards the application of this product as a membrane support material.

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多孔莫来石陶瓷的制备与表征

以萘为成孔剂，以高岭土和氧化铝为原料制备多孔莫来石。对不同的萘添加量进行了表观孔隙率(%)分析。机械强度通过弯曲强度和直径拉伸强度估算。将制备好的球团在1400℃、1500℃、1600℃进行烧结，通过x射线衍射研究和FESEM微观结构分析，研究成孔剂对相形成和孔隙分布的影响。分析表明，在20wt的情况下，孔隙率为39.79%。%萘的加入，抗弯强度为21.93MPa。这指向了该产品作为膜支撑材料的应用。以萘为成孔剂，以高岭土和氧化铝为原料制备多孔莫来石。对不同的萘添加量进行了表观孔隙率(%)分析。机械强度通过弯曲强度和直径拉伸强度估算。将制备好的球团在1400℃、1500℃、1600℃进行烧结，通过x射线衍射研究和FESEM微观结构分析，研究成孔剂对相形成和孔隙分布的影响。分析表明，在20wt的情况下，孔隙率为39.79%。%萘的加入，抗弯强度为21.93MPa。这指向了该产品作为膜支撑材料的应用。

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DAE SOLID STATE PHYSICS SYMPOSIUM 2018

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