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Published in: Interceram - International Ceramic Review 3/2020

01-07-2020 | Research and Development

Rare-Earth Oxide-Doped Magnesium Aluminate Spinel - an Overview

Authors: B. Baruah, R. Sarkar

Published in: Interceram - International Ceramic Review | Issue 3/2020

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Abstract

Abstract: Magnesium aluminate spinel (MAS) is an important refractory material known for its high refractoriness, high thermal shock resistance, high-temperature mechanical and thermal properties, high resistance to chemical attack, superior hydration resistance, etc. MAS has been employed to replace traditional chromite-based refractories in cement rotary kilns and steel ladles because chromite based refractories pose environmental issues. Thin films of MAS have potential use in thermal barrier coatings (TBCs) for the blades and vanes in the hot section components of gas turbines. Rare-earth oxide dopants play a significant role in the formation and sintering of MAS. Research has shown that the microstructure of MAS can be tailored with the help of rare-earth dopants, leading to a significant improvement in their sintering behaviour and mechanical properties. This review paper attempts to present the sintering aspects, and the mechanical and thermo-mechanical behaviour of rare-earth oxide-doped MAS.
Metadata
Title
Rare-Earth Oxide-Doped Magnesium Aluminate Spinel - an Overview
Authors
B. Baruah
R. Sarkar
Publication date
01-07-2020
Publisher
Springer Fachmedien Wiesbaden
Published in
Interceram - International Ceramic Review / Issue 3/2020
Print ISSN: 0020-5214
Electronic ISSN: 2523-8957
DOI
https://doi.org/10.1007/s42411-020-0094-8

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