Interfacial push-out measurements of fully-bonded SiC/SiC composites

Conference · Sun Dec 31 23:00:00 EST 1989

OSTI ID:6357814

Snead, L L; Steiner, D ^[1]; Zinkle, S J ^[2]

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1. Rensselaer Polytechnic Inst., Troy, NY (USA)
2. Oak Ridge National Lab., TN (USA)

The direct measurement of interfacial bond strength and frictional resistance to sliding in a fully-bonded SiC/SiC composite is measured. It is shown that a fiber push-out technique can be utilized for small diameter fibers and very thin composite sections. Results are presented for a 22 micron thick section for which 37 out of 44 Nicalon fibers tested were pushed-out within the maximum nanoindentor load of 120 mN. Fiber interfacial yielding, push-out and sliding resistance were measured for each fiber. The distribution of interfacial strengths is treated as being Weibull in form. 14 refs., 5 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6357814
• Report Number(s): CONF-9011122-2; ON: DE91004527
• Country of Publication: United States
• Language: English

Related Subjects

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BONDING
CARBIDES
CARBON COMPOUNDS
CERAMICS
CRACK PROPAGATION
FABRICATION
FRICTION
INTERFACES
JOINING
MATERIALS
MEASURING METHODS
SILICON CARBIDES
SILICON COMPOUNDS
SLIDING FRICTION
THERMONUCLEAR REACTOR MATERIALS