B Appa Rao et al 1987 J. Phys. D: Appl. Phys. 20 1077 doi:10.1088/0022-3727/20/8/017
B Appa Rao, K Satyanarayana Murthy and P Kistaiah
Show affiliationsThe lattice parameters of the MgCu2-type rare-earth intermetallics PrAl2 and NdAl2 have been measured from room temperature to 943 K using a Unicam 19-cm high-temperature powder camera. The data have been used to evaluate the coefficients of thermal expansion at various temperatures. It was found that the lattice parameter increases while the coefficient of thermal expansion decreases with increasing temperature in both compounds. An attempt is made to explain this behaviour in terms of crystal-field effects present in these compounds.
65.40.De Thermal expansion; thermomechanical effects
Issue 8 (14 August 1987)
B Appa Rao et al 1987 J. Phys. D: Appl. Phys. 20 1077
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