Low Temperature Heat Capacities of Several High Strength Materials
Abstract
Low temperature calorimetric measurements have been made on three metallurgically prepared high strength materials: NiAl, W-2 (a heavy tungsten alloy), and Al-Fe-Ce (a lightweight alloy with dispersion strengthening). To fit the heat capacity data between 3 and 10 K, not only the electronic and lattice contributions having T and T3 dependence, respectively, need to be considered, there is an additional temperature-independent term presumably associated with magnetic clusters. These results provide information on the fundamental characteristics, as well as the heterogeneous nature of the materials not always detectable by standard metallurgical techniques. Keywords: Low temperature, Heat capacity, Adiabatic calorimeter, Magnetic clusters, Nickel, Aluminum compounds, Iron, Cesium.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1988
- Accession Number
- ADA198300
Entities
People
- Dattatraya P. Dandekar
- James C. Ho