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1992
Report
Titel
Schwingfestigkeit von Al2O3- und Si3N4-Keramiken
Alternative
Fatigue of Al2O3- and Si3N4-ceramics
Abstract
Within this research work the fatigue behaviour of differently manufactured Alsub2Osub3ceramics and random samples of Sisub3Nsub4-ceramics were investigated. The tests were carried out under room temperature, 800 and 1200 degree C using unnotched and notched specimens under different mean stresses. The existence of an endurance limit for these materials could be proved. The fatigue tests were accompanied also by some quasi-static tensile bending and compressive tests. Basing on the results, a concept to dimension ceramic components for high-cycle fatigue applications is proposed.
Author(s)
Organisation
Fraunhofer-Institut für Betriebsfestigkeit -LBF-, Darmstadt
Verlag
Fraunhofer LBF
Verlagsort
Darmstadt
Language
German
Tags
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Al2O3-Keramik
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Al2O3-Keramik
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Bemessungskonzept
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Biegefestigkeit
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compressive stress
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design concept
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Druckfestigkeit
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evaluation of defect
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fatigue strength
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Fehlerbewertung
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Kerbe
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mean stress
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Mittelspannung
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notch
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Schwingfestigkeit
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Si3N4-ceramic
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Si3N4-Keramik
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Temperatur
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temperature
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ultimate bending
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keramischer Werkstoff
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W. Al 2 O 3
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W. Si 3 N 4
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Bemessung
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Versuch
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Biegebeanspruchung
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gekerbte Probe
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quasistatische Beanspruchung