X-RAY INVESTIGATION OF THE CHARACTERISTIC TEMPERATURE OF TUNGSTEN
Abstract
The ratio of the intensity of the powder diffraction line (116-235) to that of the line (011) for a W wire has been determined for Mo K alpha radiation (0.71A) for temperatures 1.4, 17, 44, 145, and 294 K. X-ray intensities were measured with a proportional counter. Previous specific heat measurements by Horowitz and Daunt (Phys. Rev. 91:1099, 1953) gave a peak at 17 K in the curve of the Debye characteristic temperature as absolute temperature T, whereas more recent measurements show no such maximum. The results of Horowitz and Daunt indicated an expected increase in the x-ray scattering ratio of some 4% between 1.4 and 17 K. Accuracy of measurement of the scattered x-ray intensities was adequate for purposes of comparison, and the x-ray results lend support to the specific heat measurements of Horowitz and Daunt. The remainder of the characteristic temperature curve to 294 K is discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1961
- Accession Number
- AD0258133
Entities
People
- C.h. Shaw
- K.d. Alexopoulos
Organizations
- Ohio State University