Real-time monitoring of ceramic sintering with laser ultrasonics

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

DOI:https://doi.org/10.1007/978-1-4899-0670-0_13· OSTI ID:7155808

Telschow, K L

A Fabry-Perot Doppler interferometer that directly measures elastic waves from rough, optically diffuse, surfaces of materials has been constructed at the Idaho National Engineering Laboratory (INEL). This apparatus, coupled with a pulsed laser for elastic wave generation, is currently being used for real-time monitoring of the sintering of zinc oxide. From the ultrasonic propagation measurements, actual densities and shrinkage values can be calculated as the material sinters; the algorithm requires previous knowledge of the ultrasonic velocity dependence on density and assumptions concerning the method of shrinkage in the material. 7 refs., 5 figs.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (USA)
• Sponsoring Organization: DOE/NE; DOI
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 7155808
• Report Number(s): EGG-M-89513; CONF-9006209--1; ON: DE90012960; CNN: J0134035
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ACOUSTIC TESTING
CHALCOGENIDES
FABRICATION
FABRY-PEROT INTERFEROMETER
INTERFEROMETERS
LASERS
MATERIALS TESTING
MEASURING INSTRUMENTS
MONITORING
NEODYMIUM LASERS
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
POROSITY
REAL TIME SYSTEMS
SINTERING
SOLID STATE LASERS
TESTING
ULTRASONIC TESTING
WAVE PROPAGATION
ZINC COMPOUNDS
ZINC OXIDES