THERMOELECTRICITY
Abstract
Work is continuing on the Co-Sb system to develop a matching 'p' and 'n' material. Thermoelectric property measurements are being extended to higher temperature for the 'n' material, and mechanical property measurements are being made. Material having 'p' type thermoelectric properties over a broad temperature range was made, but the properties are not optimum. Most of the contaminants, present as residuals in the raw materials, and those with which the alloy may come into contact during processing, such as O2 and H2, are 'n' type dopes. The 'p' doping characteristics of Fe and Sn were established. Thermal cycling tests were run to provide further data on the effects of chemistry and processing on the thermal cracking of GeBiTe. Evaluation was made in terms of change in resistance and microstructure. Three Reports are appended: 'Environmental Suit Generator' describes the design, construction, and testing of a thermoelectric heating and ventilating unit;' 'Determination of the Figure of Merit of Thermoelectric Materials' discusses methods for measuring thermoelectric properties and 'The Thermal Conductivity of Molten Cu2S.25 Te.7 and Molten Cu2S presents a review of the method and the results of measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1962
- Accession Number
- AD0406122
Entities
Organizations
- Westinghouse Electric Corporation