Kinetic analysis of magnesium aluminate spinel formation: Effect of MgO:Al2O3 ratio and titania dopant

Shamim, Mostofa; Sinhamahapatra, Somnath; Hossain, Jahangir; Lahiri, Sayan; Dana, Kausik

doi:10.1016/j.ceramint.2017.10.124

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Cited by 10 publications

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“…Magnesia-alumina spinel (MgAl 2 O 4 , MAS) will be obtained by adding MgO in alumina. MAS has excellent thermomechanical property, high melting point (2135°C), good thermal shock resistance, excellent corrosion resistance, low thermal expansion and low dielectric constant [9].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Grain-Growth of Magnesia-Alumina Spinel/Yttrium Aluminum Garnet Composite Fibers

Ma¹

2018

Ceramics - Silikaty

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Magnesia-alumina spinel/yttrium aluminum garnet composite fibers were prepared by sol-gel method. The spinnability of precursor sol remarkably depended on the addition amount of polyvinylpyrrolidone. Long gel fibers, with 80 cm in length, were obtained by adding 28 wt. % spinning additive. The phases of composite fibers were magnesia-alumina spinel and yttrium aluminum garnet after heating at 1400°C for 2 h. The Mg iron can hinder the yttrium aluminum garnet grain growth by solute drag and grain boundary pinning. The grain growth exponent was about 3.7 at 1600°C.

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Section: Introductionmentioning

confidence: 99%