Characteristics and sintering behaviour of 3 mol%Y2O3-ZrO2 powders synthesized by reaction in molten salts

Characteristics and sintering behaviour of 3 mol%Y2O3-ZrO2 powders synthesized by reaction in molten salts

Yttria-stabilised tetragonal zirconia powders were synthesised by reaction in molten salts at 450 C. To obtain a Y2O3-ZrO2 solid solution powder, it was necessary to use yttrium salts (not yttrium oxide directly) in molten NaNO3-KNO3 eutectic. The agglomeration state of the powders depended on their...

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Veröffentlicht in:Journal of materials science 1993-05, Vol.28 (9), p.2283-2288
Hauptverfasser: DESCEMOND, M, BRODHAG, C, THEVENOT, F, DURAND, B, JEBROUNI, M, ROUBIN, M
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Structural ceramics
Technical ceramics
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Zusammenfassung:Yttria-stabilised tetragonal zirconia powders were synthesised by reaction in molten salts at 450 C. To obtain a Y2O3-ZrO2 solid solution powder, it was necessary to use yttrium salts (not yttrium oxide directly) in molten NaNO3-KNO3 eutectic. The agglomeration state of the powders depended on their washing conditions and an alcohol-washed powder containing soft agglomerates led to a fine-grained and high-density sintered body. 14 refs.
ISSN:0022-2461
1573-4803
DOI:10.1007/BF01151654