Role of Y{sub 2}O{sub 3}, CaO, MgO additives on structural and microstructural behavior of zirconia/mullite aggregates
- Advanced Materials Technology Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751 013, Odisha (India)
Zirconia mullite (MUZ), Y{sub 2}O{sub 3}-MUZ, CaO-MUZ and MgO-MUZ composites, synthesized through plasma fusion technique, are becoming important due to their commercial scale of production within five minutes of plasma treatment from sillimanite, zircon and alumina mixture. The X-ray diffraction studies reveal the monoclinic zirconia phase in MUZ composite whereas mixed monoclinic, tetragonal and cubic phases of zirconia have been observed in Y{sub 2}O{sub 3}, CaO, MgO added MUZ composites. The Y{sub 2}O{sub 3}, CaO and MgO additives act as sintering aids to favour the transformation and stabilisation of tetragonal and cubic zirconia phases at room temperature. These additives also play a key role in the development of various forms of microstructure to achieve dense MUZ composites.
- OSTI ID:
- 22069097
- Journal Information:
- AIP Conference Proceedings, Vol. 1461, Issue 1; Conference: IWFM-2011: International workshop on functional materials, Berhampur, Odisha (India), 20-22 Dec 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ADDITIVES
ALUMINIUM OXIDES
CALCIUM OXIDES
COMPOSITE MATERIALS
CUBIC LATTICES
MAGNESIUM OXIDES
MICROSTRUCTURE
MIXTURES
MONOCLINIC LATTICES
MULLITE
PHASE TRANSFORMATIONS
PLASMA
SINTERING
TEMPERATURE RANGE 0273-0400 K
TETRAGONAL LATTICES
X-RAY DIFFRACTION
YTTRIUM OXIDES
ZIRCONIUM OXIDES