Abstract
In a previous paper1 the authors reported thermal conductivity measurements on solid helium mixtures in the temperature range between 0.15 and 0.6°K. The mixtures had 3He concentrations x 3 = 0.10 and 0.90. The results suggested that below the phase separation temperature T ps the thermal resistance was due mainly to boundary scattering of phonons by grains rich in the less abundant isotope embedded in a matrix rich in the more abundant isotope. The work described in this paper was undertaken to determine the temperature of the bcc to hcp transformation in the matrix and the change in conductivity when this transformation takes place. Preliminary kinetics of growth measurements are also presented.
Keywords
- Abundant Isotope
- Phonon Scattering
- Thermal Conductivity Measurement
- Phase Separation Temperature
- Phonon Free Path
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Research supported by the National Research Council and the Unemployment Insurance Commission of Canada.
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References
A.E. Burgess and M.J. Crooks, Phys. Lett. 39A, 183 (1972).
J.W. Christian, The Theory of Transformations in Metals and Alloys, Pergamon Press, Oxford (1968).
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© 1974 Plenum Press, New York
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Burgess, A.E., Crooks, M.J. (1974). Structure of Phase-Separated Solid Helium Mixtures. In: Timmerhaus, K.D., O’Sullivan, W.J., Hammel, E.F. (eds) Low Temperature Physics-LT 13. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4520-6_13
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DOI: https://doi.org/10.1007/978-1-4613-4520-6_13
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