Novel routes to ceramic and glass composites

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5420997

Rangarajan, B; Mohankrishnan, C K; Miller, D J; Lira, C T ^[1]

---

1. Michigan State Univ., East Lansing, MI (USA)

This paper describes a novel fabrication process under development for making glass and ceramic composites. A sol-gel process is used to prepare gels which are subsequently dried in a semibatch supercritical (hypercritical) fluid apparatus. The gels are dried rapidly at temperatures lower than previous supercritical processes have used. The dried ceramics are characterized with mercury and nitrogen porosimetry. The highly-porous matrices are impregnated with organic silicon carbide precursors; the impregnated matrix is pyrolyzed to form the densified ceramic composite. Material properties, including extent of fiber formation, are characterized.

• OSTI ID: 5420997
• Report Number(s): CONF-881143--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360601 -- Other Materials-- Preparation & Manufacture
CARBIDES
CARBON COMPOUNDS
CERAMICS
FABRICATION
GLASS
MATERIALS
MEASURING INSTRUMENTS
POROSIMETERS
POROUS MATERIALS
PRECURSOR
SILICON CARBIDES
SILICON COMPOUNDS
SOL-GEL PROCESS