A FLASH METHOD FOR DETERMINING THERMAL DIFFUSIVITY OVER A WIDE TEMPERATURE RANGE
Abstract
A m oasuring the thermal diffusivity, heat cap city, and thermal conductivity is de insithortration light puls is ab orbed het ace a thermally insulated specimen a few millimeters thick coated with camphor black, and the resulting tempr ture history of the rear surf ce is ea b thermocouple a recorded with an oscilloscope and camera. The thermal diffusivity is determine by th shape of the temperature versus timervthrace the h t capaci y by the m ximum temperature indicated by the thermocouple; and the thermal conductivity by the product of the heat capacity, thl usiy, an the density. These 3 thermal propertie are determined for Cu, Ag, Fe, Ni, Al, Sn, Zn, and some alloys at 20 and 135 C and mparithio reporte values. Thermal diffusivity data are also reported for 12 differtyof snlessteelver the temperature range fro 20 100 th0
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1961
- Accession Number
- AD0268752
Entities
People
- R.j. Jenkins
- W.j. Parker
Organizations
- Naval Radiological Defense Laboratory