Pulse electric current sintering and microstructure of industrial mullite in the presence of sintering aids

A commercially available mullite powder with stoichiometric composition was densified by the pulse electric current sintering (PECS) technique at 1500 °C with a holding time of 2 min to produce a fully dense microstructure. Transition metal oxides such as 0.5 wt.% of SrO and 0.2 wt.% MgO were added...

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Veröffentlicht in:Ceramics international 2004, Vol.30 (4), p.539-543
Hauptverfasser: Doni Jayaseelan, D, Amutha Rani, D, Benny Anburaj, D, Ohji, T
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container_title Ceramics international
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creator Doni Jayaseelan, D
Amutha Rani, D
Benny Anburaj, D
Ohji, T
description A commercially available mullite powder with stoichiometric composition was densified by the pulse electric current sintering (PECS) technique at 1500 °C with a holding time of 2 min to produce a fully dense microstructure. Transition metal oxides such as 0.5 wt.% of SrO and 0.2 wt.% MgO were added as sintering aids for mullite. The sintering aids greatly assisted for the modification of mullite grains in the sintered specimens. MgO added mullite exhibited equiaxed morphology, whereas SrO addition led to an equiaxed and anisotropic morphology of mullite grains.
doi_str_mv 10.1016/j.ceramint.2003.09.005
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source ScienceDirect Journals (5 years ago - present)
subjects A. Sintering
Anisotropy
Applied sciences
Building materials. Ceramics. Glasses
C. Fracture
Ceramic industries
Chemical industry and chemicals
D. Mullite
Exact sciences and technology
General studies
Heavyclay products, whiteware
Pulse electric current sintering
Structural ceramics
Technical ceramics
title Pulse electric current sintering and microstructure of industrial mullite in the presence of sintering aids
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