Published September 1985 | Version v1
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Oxidation and creep behaviour of dense silicon nitride materials with different compositions

Creators

Description

The study was intended to yield information on the oxidation and creep behaviour of Si3N4 materials of different composition and microstructure, and produced by different processes. The experiments carried out in a vast temperature and load range showed that the chemical grain boundary composition is the key parameter affecting the materials' high-temperature properties. Significant correlations could be established between oxidation and creep behaviour on the one hand, and between microstructure and the behaviour on the other. (orig./IHOE)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Ziel der vorliegenden Arbeit ist es, an verschiedenen Si3N4-Materialien unterschiedlicher Herstellung, Zusammensetzung und Mikrostruktur, das Oxidations- und Kriechverhalten zu untersuchen und zu beschreiben. Es wurden daher in weite Temperatur- und Lastbereichen entsprechende Versuche durchgefuehrt, wobei sich als Schluesselparameter fuer die Hochtemperatureigenschaften die chemische Zusammensetzung der Korngrenzenphase herausgestellt hat. Zwischen Oxidations- und Kriechverhalten einerseits, sowie zwischen beiden und der Mikrostruktur andererseits, konnten wichtige Beziehungen festgestellt werden. (orig./IHOE)

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Additional details

Additional titles

Original title (German)
Oxidations- und Kriechverhalten von dichten Siliziumnitridwerkstoffen verschiedener Zusammensetzung

Publishing Information

Imprint Pagination
181 p.
Report number
KFK--3966

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
17054441
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
ADDITIVES; ALUMINIUM OXIDES; CERIUM OXIDES; CHEMICAL COMPOSITION; CREEP; DEFORMATION; DIFFUSION; ELECTRON MICROPROBE ANALYSIS; GRAIN BOUNDARIES; HEAT TREATMENTS; HOT PRESSING; IMPURITIES; INCLUSIONS; LANTHANUM OXIDES; MAGNESIUM OXIDES; MATERIALS WORKING; MATHEMATICAL MODELS; MICROSTRUCTURE; OXIDATION; PHASE STUDIES; REACTION KINETICS; SILICON NITRIDES; SINTERING; STRESSES; TEMPERATURE DEPENDENCE; TIME DEPENDENCE; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCO; VERY HIGH TEMPERATURE; X-RAY EMISSION ANALYSIS; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; FABRICATION; KINETICS; LANTHANUM COMPOUNDS; MAGNESIUM COMPOUNDS; MECHANICAL PROPERTIES; MICROANALYSIS; MICROSCOPY; NITRIDES; NITROGEN COMPOUNDS; NONDESTRUCTIVE ANALYSIS; OXIDES; OXYGEN COMPOUNDS; PRESSING; RARE EARTH COMPOUNDS; SILICON COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS