THERMOELECTRIC MATERIALS
Abstract
As a practical result of the contractual work on N-type thermoelement CoSi + 1% FeSi and P-type thermoelement Cr0.05 Mn0.95 i2 + 2% Ag were developed. These aterials, like most of the transition metal silicides, are stable thermally. Bonding experiments suggest that the bonding of electrical con acts to the transition me al ilicides is by no means an i superable problem. It is suggested that the silicides will be useful in the range 500 - 800 C probably in cascade with PbTe. On the theoretical side, a b sic understanding of the transition metal silicides or, indeed, any of the transition metal compounds is still lacking. The silicides remain s one of the few stable ma rials at high tempera ur s. Much could be done to optimize the transition metal silicides still further, particularly, along the lines of addition of small quantities of noble metals and the reduction of the lattice component of the thermal conductivity by substitutions of heavy metal silicides. (Aut or)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 03, 1961
- Accession Number
- AD0276005