Specific heat of liquid Tl-Se alloys

Specific heat measurements of liquid Tl-Se alloys were carried out over the whole composition range. The specific heats, about 36 J mol(-1) K-1, were determined at temperatures just above their melting temperatures. The speci fic heats for Tl100-xSex with x less than or equal to 70 decrease almost li nearly with increasing temperature and come to about 29 J mol(-1) K-1 at 97 3 K. On the contrary, the specific heats for Tl100-xSex with x greater than or equal to 80 increase with increasing temperature. For alloys with x gre ater than or equal to 80, the structural change associated with the formati on of dangling bonds mainly contributes to the excess specific heats. (C) 1 999 Elsevier Science B.V. All rights reserved.