Producibility of fibrous refractory composite insulation, FRCI 40-20

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Ceram. Eng. Sci. Proc.; (United States)

DOI:https://doi.org/10.1002/9780470320129.ch12· OSTI ID:6826828

Strauss, E L; Johnson, C W; Graese, R W; Campbell, R L

Fibrous Refractory Composite Insulation (FRCI) is a NASA-developed, second generation, reusable heat-shield material that comprises a mixture of aluminoborosilicate fibers, silica fibers, and silicon carbide. Under NASA contract, a program was conducted to demonstrate the capability for manufacturing FRCI 40-20 billets. A detailed fabrication procedure was written and validated by testing specimens from the first two billets. The material conformed to NASA requirements for density, tensile strength, modulus of rupture, thermal expansion, cristobalite content, and uniformity. Twenty-four billets were prepared to provide 20 deliverable articles. Production billets were checked for density, modulus of rupture, cristobalite content, and uniformity. Billet density ranged from 309.48 to 332.22 kg/cu m (19.32 to 20.74 lb/cu ft) and modulus of rupture from 4690 to 10,140 kPa (680 to 1470 psi). Cristobalite content was less than 1 percent. A Weibull analysis of modulus-of-rupture data indicated a 1.5 percent probability for failure below the specified strength of 4480 kPa (650 psi). 9 references.

• Research Organization: Martin Marietta Aerospace, Denver, CO
• OSTI ID: 6826828
• Journal Information: Ceram. Eng. Sci. Proc.; (United States), Journal Name: Ceram. Eng. Sci. Proc.; (United States) Vol. 4; ISSN CESPD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360301* -- Composite Materials-- Preparation & Fabrication-- (-1987)
CERAMICS
COMPOSITE MATERIALS
FABRICATION
FIBERS
MATERIALS
REFRACTORIES
THERMAL INSULATION
USES