We have developed a new technique to research thermal transport properties of solid materials at cryogenic temperatures. It is based on an optical ac calorimetry for the measurement of thermal diusivity. This paper presents new ac calorimeters with sophisticated laser heating systems that realize ve
Pure metal AC windings for use at cryogenic temperatures
β Scribed by Burnier, P.; Pouillange, J.
- Book ID
- 117920362
- Publisher
- IEEE
- Year
- 1966
- Tongue
- English
- Weight
- 673 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0018-9464
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Table 1 Pumping speeds of the cryopump for H 2 and Ar with the cold trap at 4.2 K and 2.2 K respectively (Pumping speeds of N 2 and dry air are equal to those of Ar within 10%) Pumping speed, I s "1 Gas 4,2 K 2.2 K H 2 4 000 5 200 Ar 1 000 1 000 gas molecules even for low values of the sticking pro
## Abstract The purpose of this study was to obtain pure nanostructured titanium by drawing at cryogenic temperatures and to investigate its structural and mechanical properties. Titanium rods were obtained by severe plastic deformation under the scheme of upsettingβextrusionβdrawing. Upsetting and