BORNITRIDKERAMIK MIT GROSSER BESTÄNDIGKEIT GEGEN SCHMELZSCHÄDEN

An h-BN type ceramic having good resistence to melt damage caused by melts is claimed obtd.by incorporating at least 50% h-BN and 1 to less than 50% composite cpd (I) composed of at least 2 cpds. from AlN; Si3N4; Al2O3 and SiO2 in a sinter. Further incorporation of at least one cpd. from AlN; So3N4,...

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Bibliographic Details
Main Authors KURITA, SUMIHIKO, NAKASHIMA, MASAZUMI KABUSHIKI KAISHA K
Format Patent
LanguageGerman
Published 15.07.1995
Edition6
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:An h-BN type ceramic having good resistence to melt damage caused by melts is claimed obtd.by incorporating at least 50% h-BN and 1 to less than 50% composite cpd (I) composed of at least 2 cpds. from AlN; Si3N4; Al2O3 and SiO2 in a sinter. Further incorporation of at least one cpd. from AlN; So3N4, Al2O3 and SiO2 in amt. less than 30% in addition to (I) markedly improves the welting resistance and the thermal shock resistance as well as the resistance against fusing damages. (I) pref. comprises cpds. of formula Al6 Si2 O13; Si3Al3O3N5; Al303N or Si6Al10021 N4.
Bibliography:Application Number: AT19890912500T