Published September 1990 | Version v1
Report Restricted

Creep and oxidation behaviour of SiC-whisker-reinforced Al2O3/ZrO2 composites

Creators

Description

Oxidation tests in air at temperatures up to 1450deg C following two heating types and four-point-bending creep experiments under bending stresses between 40-160 MPa at temperatures from 1000 up to 1350deg C in air or vacuum were performed with SiC-whisker reinforced Al2O3/ZrO2 composites. The materials before and after oxidation and creep tests have been characterized with different methods. The measured results are explained and discussed with corresponding models and theories. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

In der vorliegenden Arbeit wurden Oxidationsversuche an Luft bis zu einer Temperatur von 1450deg C nach zwei Aufheiztypen und Vierpunkt-Biegekriechversuche im Temperaturbereich 1000-1350deg C bei Biegebelastungen zwischen 40-160 MPa an Luft (oder im Vakuum) an SiC-whiskerverstaerkten Al2O3/ZrO2 Keramiken durchgefuehrt. Weiter wurden die vier Materialien im Anlieferungszustand und nach den Oxidations- bzw. Kriechversuchen mit unterschiedlichen Verfahren charakterisiert. Die ermittelten Ergebnisse wurden mit entsprechenden Modellen und theoretischen Berechnungen bewertet, erklaert und diskutiert. (orig.)

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Additional details

Additional titles

Original title (German)
Kriechen und Oxidationsverhalten von SiC-whiskerverstaerkten Al
Augmented title (English)
75 wt% Al_2O_3.8%ZrO_2.17%SiC; 61% Al_2O_3.8%ZrO_2.31% SiC; 71% Al_2O_3.12% ZrO_2.17% SiC

Publishing Information

Imprint Pagination
174 p.
Report number
KFK--4783

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
22037050
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
ALUMINIUM OXIDES; COMPOSITE MATERIALS; CREEP; ELECTRON MICROSCOPY; FRACTOGRAPHY; ISOTHERMS; MECHANICAL PROPERTIES; MICROSTRUCTURE; OXIDATION; PHASE STUDIES; REINFORCED MATERIALS; SILICON CARBIDES; TEMPERATURE DEPENDENCE; VERY HIGH TEMPERATURE; WHISKERS; X-RAY DIFFRACTION; ZIRCONIUM OXIDES
Descriptors DEC
ALUMINIUM COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; CRYSTAL STRUCTURE; CRYSTALS; DIFFRACTION; MATERIALS; MICROSCOPY; MONOCRYSTALS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS