Thermal Boundary Resistance Problems in Melt-Texturized YBCO in a Ni Sheath
Melt-texturized YBCO in a Ni sheath involves a neodymium gallate layer on the inner surface of the sheath and a NiO layer on the outer surface. The thermal boundary resistances of these two layers are measured at low temperatures by a novel method. It is found that the boundary resistance of the neodymium gallate layer is negligibly small but that of the NiO layer is large and can compromise the transverse heat flow in the conductor.
KeywordsThermal Resistance Copper Strip Total Thermal Resistance Thermal Boundary Resistance Wright Laboratory
Unable to display preview. Download preview PDF.
- 1.R. L. Spyker. G. Klozlowski, C. E. Obcrly. and R. E. Reese. “Advances in Cryogenic Engineering.” Plenum. New York (1992). p. 481.Google Scholar
- 2.W. N. Lawless and C. F. Clark, “Advances in Cryogenic Engineering.” Plenum, New York (1994). p. 495.Google Scholar
- 3.W. N. Lawless. Final Report. “Dielectric Insulation for HTSC Wires.” Air Force Contract F33615–92-C-2286. July 25. 1994.Google Scholar
- 4.G. E. Childs, L. J. Ericks, and R. L. Powell. “Thermal Conductivity of Solids at Room Temperature and Below.” U. S. Department of Commerce Monograph 131. September 1973.Google Scholar