Synthesis mechanism and properties of lightweight mullite-corundum refractories obtained through high temperature liquid-assisted micrometer-scale Kirkendall effect

Y Liu, H Yin, Y Tang, Y Xin, H Yuan, X Ren, Q Wan - Ceramics International, 2021 - Elsevier
At high temperature, the lightweight mullite-corundum refractory was prepared by the
micrometer-scale Kirkendall effect using quartz, bauxite, and corundum as the main raw …

A novel preparation method for elongated mullite using Zircon-Al2O3 modified SiO2 as silicon source for high-temperature functional ceramics

H Mai, F Zhao, X Zhu, J An, W Lian, Y Hu, X Liu - Ceramics International, 2023 - Elsevier
This work provides a novel route for the fabrication of mullite ceramics with excellent
mechanical strength using Zircon-Al 2 O 3-modified SiO 2 as silicon source. The results …

Phase formation and microstructure evolution in mullite ceramics synthesized from mechanochemically activated oxide powders doped with Cr2O3

Z Xiao, X Li, X Sun, S Yu, Y Jiang, X Li, H Jiang… - Journal of Physics and …, 2018 - Elsevier
In this study, we investigated the influence of Cr 2 O 3 on phase formation and
microstructure evolution in mullite ceramics. We also explored the mechanochemical effects …

Microstructures and properties of microporous mullite‐corundum aggregates for lightweight refractories

S Wang, W Yan, J Yan, S Schafföner… - … Journal of Applied …, 2022 - Wiley Online Library
Five microporous mullite‐corundum refractory aggregates were prepared from Al (OH) 3 and
kaolinite gangue through in situ decomposition synthesis technique. The effects of the …

Synthesis of high‐performance mullite ceramics based on associated rare‐earth kaolin

X Gao, X Feng, D Zhang, J Zhang… - … Journal of Applied …, 2023 - Wiley Online Library
The objective of this work was to prepare high‐purity, high‐strength mullite ceramics from
low‐cost, associated rare‐earth kaolin (AREK). A reaction sintering process using calcined …

Effect of Al2O3@ CaCO3 spherical particles on microstructures, phase compositions and performances of lightweight MA spinel-corundum refractories

H Yin, Y Liu, Y Tang, H Yuan, Y Xin, K Gao, B Zuo - Ceramics International, 2021 - Elsevier
The lightweight spinel-corundum refractory was prepared using the Kirkendall effect when
spherical particles Al 2 O 3@ CaCO 3 were introduced into the ingredient. The mechanism …

Preparation of high strength and low thermal conductivity mullite refractories based on reconstruction of fly ash

Z Wan, S Sang, Y Ma, T Zhu - International Journal of Applied …, 2022 - Wiley Online Library
The preparation of refractories with both low thermal conductivity and high strength are
continuously pursued in industrial furnaces. In this work, mullite refractories with low thermal …

Mullitization behavior and microstructural development of B2O3–Al2O3–SiO2 mixtures activated by high-energy ball milling

LB Kong, TS Zhang, J Ma, FYC Boey - Solid state sciences, 2009 - Elsevier
This paper reports on phase formation and microstructural development of mullite, derived
from B2O3–Al2O3–SiO2 mixtures activated with different milling methods. It is found that the …

A novel strategy to fabricate high-strength mullite by the reaction sintering method using Al3+/Ce4+-doped SiO2

X Zhu, L Chen, F Zhao, J Gao, K Li, X Liu, E Xu… - Ceramics …, 2021 - Elsevier
This study presents a novel strategy for fabricating high-strength mullite using Al 3+/Ce 4+-
doped SiO 2 and γ-Al 2 O 3 powders. Doping of Al 3+/Ce 4+ ions in SiO 2 results in the …

Effect of Al(OH)3 addition on densification mechanism and properties of reaction-sintered mullite-corundum composite ceramics

Z Liu, N Xie, H Zhang, S Huang, C Wu… - Journal of Asian …, 2022 - Taylor & Francis
Mullite composite ceramics were fabricated by using mullite powder from waste coal gangue
and Al (OH) 3 as starting materials. The effects of sintering temperature and Al (OH) 3 …