The effect of processing on strength of Nicalon fibers in Nicalon fiber-SiC matrix composites

Conference · Sun Dec 01 04:00:00 EST 1991

OSTI ID:5931074

Singh, D; Singh, J P

Degradation of strength of Nicalon (silicon carbide) fibers during processing of Nicalon fiber-SiC matrix composites was studied. Strength distribution of as-fabricated Nicalon fibers was obtained via bundle tests. Whereas, strengths of fractured fibers in Nicalon fiber-reinforced SiC matrix composite specimens were estimated by measuring fracture mirror radii. Comparison of fracture probability plots indicate significant differences in the behavior of the as-fabricated fibers and those in the composite. Possible causes leading to these differences are discussed.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5931074
• Report Number(s): ANL/CP-73895; CONF-920144--1; ON: DE92006978
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
DEFECTS
DISTRIBUTION FUNCTIONS
FABRICATION
FRACTURE PROPERTIES
FUNCTIONS
MATERIALS
MECHANICAL PROPERTIES
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
STRAINS
STRESSES