Pressure dependence of Young’s moduli of thermal sprayed materials

A strong dependence of the Young's moduli of thermal sprayed ceramics on pressure due to elastic closure of microcracks is predicted. At pressures of the order of hundreds MPa, i.e. at elastic contractions < 1%, the low Young's moduli of sprayed ceramics should increase to high values,...

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Veröffentlicht in:	Scripta materialia 1999-05, Vol.40 (11), p.1249-1254
Hauptverfasser:	Kroupa, F., Dubsky, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramics Condensed matter: structure, mechanical and thermal properties Crack closure Exact sciences and technology Mechanical and acoustical properties Physical properties of thin films, nonelectronic Physics Plasma spray Stress-strain relation theory Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Beschreibung
Zusammenfassung:	A strong dependence of the Young's moduli of thermal sprayed ceramics on pressure due to elastic closure of microcracks is predicted. At pressures of the order of hundreds MPa, i.e. at elastic contractions < 1%, the low Young's moduli of sprayed ceramics should increase to high values, close to those for well sintered porous ceramics.
ISSN:	1359-6462 1872-8456
DOI:	10.1016/S1359-6462(99)00120-7