Thermal shock and fatigue behavior of pressureless sintered Al sub(2)O sub(3)-SiO sub(2)-ZrO sub(2) composites

Thermal shock and fatigue behavior of pressureless sintered Al sub(2)O sub(3)-SiO sub(2)-ZrO sub(2) composites

The thermal shock and fatigue behavior of pressureless sintered Al sub(2)O sub(3)-SiO sub(2)-ZrO sub(2) (ASZ) composites was studied. The influence of the thermal shock and fatigue on the strengthening response of ASZ has been investigated by measuring the strength retention and microstructural chan...

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Veröffentlicht in:Journal of advanced ceramics 2015-09, Vol.4 (3), p.190-198
Hauptverfasser: Mebrahitom Asmelash, G, Mamat, O, Ahmad, F, Prasada Rao, AK
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum oxide
Ceramics
Crack propagation
Fatigue (materials)
Fracture mechanics
Reinforcement
Sintering
Thermal shock
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container_title Journal of advanced ceramics
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creator Mebrahitom Asmelash, G
Mamat, O
Ahmad, F
Prasada Rao, AK
description The thermal shock and fatigue behavior of pressureless sintered Al sub(2)O sub(3)-SiO sub(2)-ZrO sub(2) (ASZ) composites was studied. The influence of the thermal shock and fatigue on the strengthening response of ASZ has been investigated by measuring the strength retention and microstructural changes. The magnitude of the flexural strength and fracture of the ASZ has been compared with that of the monolithic Al sub(2)O sub(3) (A) and Al sub(2)O sub(3)-ZrO sub(2) (AZ) composites under the same experimental conditions. Results indicated that the ASZ composites possess the highest resistance against thermal shock and fatigue, in comparison with A and AZ. The improvements were attributed to the enhancement in the fracture toughness of ASZ and the presence of multi-phase reinforcement.
doi_str_mv 10.1007/s40145-015-0146-0
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subjects Aluminum oxide
Ceramics
Crack propagation
Fatigue (materials)
Fracture mechanics
Reinforcement
Sintering
Thermal shock
title Thermal shock and fatigue behavior of pressureless sintered Al sub(2)O sub(3)-SiO sub(2)-ZrO sub(2) composites
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