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Influence of the properties of refractory powders on their granulation and the properties of the granules

Journal Article · · Refractories (Engl. Transl.); (United States)
OSTI ID:5573395
; ;

A study was made of the properties of aluminosilicate powders of various compositions and their influence on the densification during granulation. The authors established relationships between the porosity and density of the granules with various concentrations of A1/sub 2/O/sub 3/ with bulk densities and angles of natural slope. It is shown that to obtain dense and strong green articles and fired aluminosilicate granules with the minimum shrinkage, it is necessary to use bodies with a high bulk density and low internal friction, which is attained for alumina by using batches with the maximum concentration of a-A1/sub 2/O/sub 3/ and grains with a pore-free structure, and for aluminosilicate refractories - an increased content of Al/sub 2/O/sub 3/ within the limits of each type of article.

Research Organization:
Ukrainian Sci-Res. Institute of Refractories
OSTI ID:
5573395
Journal Information:
Refractories (Engl. Transl.); (United States), Journal Name: Refractories (Engl. Transl.); (United States) Vol. 28:8; ISSN REFRA
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BLAST FURNACES
BULK DENSITY
CHALCOGENIDES
COMMINUTION
COMPACTING
COMPRESSION STRENGTH
CRYSTAL STRUCTURE
DENSITY
FRICTION
FURNACES
GRAIN ORIENTATION
GRAIN SIZE
GRANULAR MATERIALS
GRINDING
INTERNAL FRICTION
MACHINING
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROSTRUCTURE
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHYSICAL PROPERTIES
POROSITY
POWDERS
QUANTITY RATIO
REFRACTORIES
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SURFACE AREA
SURFACE PROPERTIES
TEMPERATURE EFFECTS
TESTING