Thermal conductivity of a CuCrZr alloy from 5 K to room temperatures

0351431 - ÚPT 2011 RIV GB eng J - Článek v odborném periodiku
Hanzelka, Pavel - Musilová, Věra - Králík, Tomáš - Vonka, J.
Thermal conductivity of a CuCrZr alloy from 5 K to room temperatures.
Cryogenics. Roč. 50, 11-12 (2010), s. 737-742. ISSN 0011-2275. E-ISSN 1879-2235
Grant CEP: GA AV ČR IAA100650804
Výzkumný záměr: CEZ:AV0Z20650511
Klíčová slova: metals * heat transfer * cryostats
Kód oboru RIV: BJ - Termodynamika
Impakt faktor: 1.124, rok: 2010

Thermal conductivity of a CuCrZr alloy containing of 0.71% of Cr and 0.23% of Zr was measured in the temperature interval from 5 K to 300 K. A method utilizing the measurement of thermal conductivity integral of a sample was verified and applied. Measurements of thermal conductivity, electrical resistivity at 4.2 K and 295 K and of Brinell hardness were performed on solution annealed, precipitation hardened and "as received" materials. The CuCrZr alloy was found to be applicable where high mechanical properties together with high and stable thermal conductivity are required. The possibility to predict the thermal conductivity of precipitation hardened copper alloys from the electrical properties even if the RRR values are lower than 10 was verified at RRR = 5.
Trvalý link: http://hdl.handle.net/11104/0191188