Nondestructive characterization of ceramic composite whiskers with neutron diffraction and ultrasonic techniques. [Al/sub 2/O/sub 3//SiC whisker composite]

Conference · Wed Jul 01 04:00:00 EDT 1987

OSTI ID:5740601

Kupperman, D S; Majumdar, S; MacEwen, S R; Hitterman, R L; Singh, J P; Roberts, R A; Routbort, J L

This paper presents some results of a program in which the characterization and control of interfacial bonds in composites are being investigated. The General Purpose Powder Diffractometer (GPPD) at the Intense Pulsed Neutron Source (IPNS) have been employed to measure residual strains in Al/sub 2/O/sub 3//SiC, ceramic-ceramic composite by neutron diffraction techniques from which stresses at the fiber-matrix interface may be calculated. Results of this experiment and initial results employing ultrasonic techniques to assess whisker-matrix bonding are discussed. 9 refs., 5 figs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5740601
• Report Number(s): CONF-870691-7; ON: DE88003075
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360603 -- Materials-- Properties
42 ENGINEERING
420500 -- Engineering-- Materials Testing
654003 -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACOUSTIC TESTING
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL BONDS
COHERENT SCATTERING
COMPOSITE MATERIALS
CRYSTALS
DIFFRACTION
EXPANSION
INTERFACES
LATTICE PARAMETERS
MATERIALS
MATERIALS TESTING
MONOCRYSTALS
NEUTRON DIFFRACTION
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PEAKS
PULSED NEUTRON TECHNIQUES
RESIDUAL STRESSES
SCATTERING
SILICON CARBIDES
SILICON COMPOUNDS
STRAINS
STRESSES
TESTING
THERMAL EXPANSION
ULTRASONIC TESTING
WHISKERS