Temperature dependent thermoelastic properties of some fcc crystals

Ciftci Y., Colakoglu K.

SOLID STATE SCIENCES, cilt.4, sa.2, ss.255-259, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 4 Sayı: 2
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s1293-2558(01)01246-8
  • Dergi Adı: SOLID STATE SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.255-259
  • Gazi Üniversitesi Adresli: Evet

Özet

Some thermoelastic properties, such as, second- and third-order elastic constants (C-ij, C-ijk) thermal expansion coefficient (beta), Anderson-Grunesien parameter (delta), Gruneisen parameter (gamma), bulk modulus (B) are calculated for some fee crystals. Total energy (W) is assumed to be the sum of the central pairwise potential (extended generalized exponential energy EGEP) and volume dependent energy (W-v). In this model, the temperature is related to the total energy as W-0(r)exp[-pik(B)Tr/(hV(F))]. The obtained results are compared with the available experimental data and, generally, the agreement is good. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.