AN APPLICATION OF INDUCTION HEATING TO ROCK DEFORMATION APPARATUS.
Abstract
High-frequency induction provides the advantages of concentrated, controlled, and instantaneous heating of samples in rock deformation experiments; the attendant disadvantages are high initial cost, bulky support equipment, and an inability to use standard temperature-monitoring equipment. A new shear press capable of simultaneously applying pressures of 50 kb and temperatures of 1000 C to thin sample pellets 1/4 in. to 1 in. in diameter uses a 5-kw, 450-kc induction heater, a Speedomax H recorder, a current-adjusting-type control unit, a saturable-core reactor, a magnetic amplifier, and an infrared pyrometer to accurately record, control, and monitor sample temperatures within 1 percent from 200 to 1000 C. Less than 45 sec is required for the apparatus to reach thermal equilibrium at maximum temperature. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1964
- Accession Number
- AD0601167
Entities
People
- R. E. Riecker
Organizations
- Air Force Cambridge Research Laboratories