Fusibility of Formulations Based on Phases of the System Constituted by Spinel, Mullite, and Aluminum Titanate

Суворов, С. А.; Fishchev, V. N.; Shadricheva, D. B.; Firsanova, T. V.; Алексеева, Н. В.

doi:10.1023/b:rjac.0000024565.98383.20

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2011

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“…The melting point of magnesium aluminium spinel is 21351C, an eutectic melt in the system MgO-Al 2 O 3 -TiO 2 -SiO 2 appears at 16451C. 30 Sarkar and Bannerjee 31 studied the influence of TiO 2 on the magnesium aluminate formation. It was concluded that TiO 2 accelerated sintering and was beneficial for densification, indicating TiO 2 had a general accelerating effect on diffusion kinetics.…”

Section: Spinel Formationmentioning

confidence: 99%

Improved Thermal Shock Performance of Sintered Mg–Partially Stabilized Zirconia with Alumina and Titania Additions

Kratschmer

Aneziris

2011

Int J Applied Ceramic Tech

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This paper examines the microstructure of sintered magnesia partially stabilized zirconia (Mg-PSZ) with alumina and titania additions. Two effects are mainly responsible for enhanced thermal shock performance, microcrack generation by zirconia destabilization and in situ spinel formation as well as development of a duplex microstructure within the zirconia matrix. The duplex microstructure formation is controlled by the sintering kinetics as a function of the MgO concentration and the spinel formation. Titania additions, thereby, improve the sintering kinetics remarkably.

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Section: Spinel Formationmentioning

confidence: 99%