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...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Ceramics international 2004, Vol.30 (4), p.539-543
Hauptverfasser:	Doni Jayaseelan, D, Amutha Rani, D, Benny Anburaj, D, Ohji, T
Format:	Artikel
Sprache:	eng
Schlagworte:	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
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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.
ISSN:	0272-8842 1873-3956
DOI:	10.1016/j.ceramint.2003.09.005