Sintering behavior of mullite-containing materials

Technical Report · Sat Dec 01 04:00:00 EST 1979

OSTI ID:5643561

Sacks, M D

A/sub 2/O/sub 3/ and SiO/sub 3/ were processed by powder and gel processes to form mullite-containing materials for sintering studies. The effects of phase composition, particle packing arrangement in the green compact, powder surface area, and sintering atmosphere on microstructural evolution and sintering kinetics (densification was observed when large amounts of liquid phase were present during sintering. In powder materials with composition near or within the mullite solid solution range, a proportionality was observed between the theoretical density and the logarithm of time for the various sintering temperatures. In gel materials, enhanced densification rates with increasing grinding times is observed. In sintering atmospheres, the total pressure and the partial pressure of oxygen were the important variables. (FS)

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5643561
• Report Number(s): LBL-10372
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COLLOIDS
COMMINUTION
DENSITY
DISPERSIONS
FABRICATION
GELS
GRINDING
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MACHINING
METALLURGY
MINERALS
MIXTURES
MULLITE
OXIDES
OXYGEN COMPOUNDS
PACKINGS
PHASE STUDIES
PHYSICAL PROPERTIES
POWDER METALLURGY
SILICON COMPOUNDS
SILICON OXIDES
SINTERING
SOLID SOLUTIONS
SOLUTIONS
SURFACES
TEMPERATURE DEPENDENCE