Toughening and strengthening of alumina with silver inclusions

The fracture toughness and flexural strength of Al 2O 3 Ag composites are investigated. Both the strength and toughness of alumina are enhanced as silver inclusions are added. From microstructural observation, the crack is bridged or deflected by silver inclusions. The toughness enhancement is contr...

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Veröffentlicht in:	Journal of the European Ceramic Society 1995, Vol.15 (4), p.291-295
Hauptverfasser:	Chou, W.B., Tuan, W.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
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The fracture toughness and flexural strength of Al 2O 3 Ag composites are investigated. Both the strength and toughness of alumina are enhanced as silver inclusions are added. From microstructural observation, the crack is bridged or deflected by silver inclusions. The toughness enhancement is contributed mainly by the plastic deformation of the silver inclusions. The strengthening effect is contributed both by the matrix grain refinement and by the toughness enhancement.
ISSN:	0955-2219 1873-619X
DOI:	10.1016/0955-2219(95)90351-I