Thermal conductivities of magnetic intermetallic compounds for cryogenic regenerator

✍ Scribed by M. Ogawa; R. Li; T. Hashimoto

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 466 KB
• Volume: 31
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(91)90198-6

✦ Synopsis

The specific heat of intermetallic compounds such as Er/(Nil _xCox)2, Er 1 _xDyxNi2, Er3Ni and ErNi has been investigated by the present authors in previous papers and the performance of some small regenerative cycle cryocoolers below 15 K has been improved by using intermetallic compounds as regenerator materials. In this paper, the heat transfer in regenerator materials, which, like the heat capacities of regenerator materials, is an important problem, has been studied. The temperature dependence of thermal conductivity has been investigated for the intermetallic compounds Er(Ni~ _xCox)2, Er~ _,Dy~Ni, Er3Ni and ErNi. Suitable sizes of the materials for application in regenerators are then discussed in view of the non-steady heat transfer.