Fabrication of porous ceramic composites with improved compressive strength from coal fly ash

JH Lee, WY Kim, TY Yang, SY Yoon… - … in Applied Ceramics, 2011 - journals.sagepub.com
A freeze–gel casting method has been proposed to fabricate porous mullite–alumina
composite with controlled 'designer'pore structure and improved compressive strength. In …

Porous mullite composite with controlled pore structure processed using a freeze casting of TBA-based coal fly ash slurries

TY Yang, HB Ji, SY Yoon, BK Kim, HC Park - Resources, conservation and …, 2010 - Elsevier
Porous ceramic composite with controlled “designer” pore structure has been prepared by a
freeze casting route using a tertiary-butyl alcohol (TBA)/coal fly slurry system. Unidirectional …

Freeze casting of aqueous coal fly ash/alumina slurries for preparation of porous ceramics

HB Ji, WY Kim, TY Yang, SY Yoon, BK Kim… - Journal of Physics and …, 2010 - Elsevier
A porous mullite-matrix composite with a bimodal pore structure has been prepared by a
freeze casting route using water/coal fly slurry system. The top and bottom parts of the …

Porous mullite ceramics derived from coal fly ash using a freeze-gel casting/polymer sponge technique

JH Lee, HJ Choi, SY Yoon, BK Kim, HC Park - Journal of Porous Materials, 2013 - Springer
The objective of this study was to prepare highly porous mullite ceramics with relatively large-
sized pores and improved compressive strength using a freeze/gel casting route combined …

Preparation of porous mullite composites through recycling of coal fly ash

WY Kim, HB Ji, TY Yang, SY Yoon, HC Park - Journal of the Korean …, 2010 - jkcs.or.kr
Porous mullite/alumina composites have been fabricated by a freeze casting technique
using TBA-based coal fly ash/alumina slurry. After sintering, unidirectional macropore …

Porous mullite/alumina-layered composites with a graded porosity fabricated by camphene-based freeze casting

KH Kim, DH Kim, SC Ryu, SY Yoon… - Journal of Composite …, 2020 - journals.sagepub.com
A freeze casting technique was processed to fabricate porous mullite/alumina-layered
composite with a gradient in porosity and pore size. In this work, a camphene/coal fly ash …

Microstructure and properties of mullite-based porous ceramics produced from coal fly ash with added Al2O3

J Zhu, H Yan - International Journal of Minerals, Metallurgy, and …, 2017 - Springer
Using coal fly ash slurry samples supplemented with different amounts of Al 2 O 3, we
fabricated mullite-based porous ceramics via a dipping-polymer-replica approach, which is …

Recycling of coal fly ash for fabrication of porous mullite composite

JM Lee, TY Yang, SY Yoon, BK Kim… - Advanced Materials …, 2011 - Trans Tech Publ
Unidirectional pore structured porous mullite composite has been fabricated using a TBA-
based freeze-gelcasting of coal fly ash/alumina slurries. After sintering at 1300-1500o C, the …

Recycling of coal fly ash for the fabrication of porous mullite/alumina composites

KH Kim, SY Yoon, HC Park - Materials, 2014 - mdpi.com
Coal fly ash with the addition of Al2O3 was recycled to produce mullite/alumina composites
and the camphene-based freeze casting technique was processed to develop a controlled …

Microstructure and properties of highly porous mullite materials fabricated by direct foaming-gelcasting

J Qiao, R Shi - Journal of Porous Materials, 2023 - Springer
Highly porous ceramics are of interest for various industrial applications, including filtration,
supports for catalysts and biomedical applications, and insulating materials. In this study …