Thermal shock and bend strength properties of the Mg-Ti-partially stabilized zirconia system

The effect of ageing Mg--PSZ and Mg--Ti--PSZ at 1150 deg C on thermal shock cycles to failure and bend strength was examined. Increasing the amount of TiO sub 2 in Mg--PSZ improves the thermal shock properties. Further improvement in these compositions is brought about by ageing for 8 h or more at 1...

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Veröffentlicht in:	Journal of materials science letters 1991-04, Vol.10 (8), p.464-465
Hauptverfasser:	KRISHNAMOORTHY, P. R, PARVATI RAMASWAMY, NARAYANA, B. H
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:	The effect of ageing Mg--PSZ and Mg--Ti--PSZ at 1150 deg C on thermal shock cycles to failure and bend strength was examined. Increasing the amount of TiO sub 2 in Mg--PSZ improves the thermal shock properties. Further improvement in these compositions is brought about by ageing for 8 h or more at 1150 deg C. Ageing also improves the bend strength of Mg--Ti--PSZ and Mg--PSZ. The up- and down-quenching brings about a decrease in the bend strength in the Mg--Ti--PSZ system by 40-65%. Although ageing in general results in an improvement in bend strength, the trends in the deterioration of bend strength with thermal up- and down-quenching are very similar in as-sintered and aged samples. Graphs. 4 ref.--AA
ISSN:	0261-8028 1573-4811
DOI:	10.1007/BF00838351