Browsing by Keywords "Thermal expansion"

Now showing items 1-8 of 8

    • Anharmonicity in GaTe layered crystals 

      Aydınlı, Atilla; Gasanly, N. M.; Uka, A.; Efeoglu, H. (Wiley-VCH Verlag GmbH & Co. KGaA, 2002)
      The temperature dependencies (10-300 K) of seven Raman-active mode frequencies in layered semiconductor gallium telluride have been measured in the frequency range from 25 to 300 cm -1. Softening and broadening of the ...

    • Anharmonicity of zone-center optical phonons: Raman scattering spectra of GaSe0.5S0.5 layered crystal 

      Gasanly, N. M.; Aydınlı, Atilla; Kocabas, C.; Özkan H. (IOPscience, 2002)
      The temperature dependencies (10-300 K) of the eight Raman-active mode frequencies and linewidths in GaSe0.5S0.5 layered crystal have been measured in the frequency range from 10 to 320 cm-1. We observed softening and ...

    • A method of two-scale chemo-thermal-mechanical coupling for concrete 

      Wu, T.; Temizer, İlker; Wriggers, P. (CIMNE, 2011)
      The Alkali Silica Reaction(ASR) is one of the most important reasons to cause damage in cementitious constructions, which can be attributed to the expansion of hydrophilic gel produced in the reaction. In this contribution, ...

    • Negative thermal expansion of group III-Nitride monolayers 

      Sarıkurt, S.; Abdullahi, Y. Z.; Durgun, Engin; Ersan, F. (Institute of Physics Publishing Ltd., 2022-05-23)
      Materials with a negative thermal expansion coefficient have diverse potential applications in electronic engineering. For instance, mixing two materials with negative and positive thermal expansion coefficients can avoid ...

    • Temperature dependence of the first-order Raman scattering in GaS layered crystals 

      Gasanly, N. M.; Aydınlı, A.; Özkan, H.; Kocabaş, C. (Pergamon Press, 2000)
      The temperature dependence (15-293 K) of the six Raman-active mode frequencies and linewidths in gallium sulfide has been measured in the frequency range from 15 to 380 cm-1. We observed softening and broadening of the ...

    • Temperature-dependent Raman scattering spectra of ε-GaSe layered crystal 

      Gasanly, N. M.; Aydnl, A.; Özkan, H.; Kocabaş, C. (Elsevier Science, 2002)
      The temperature dependencies (15-300 K) of seven Raman-active mode frequencies and linewidths in layered gallium selenide have been measured in the frequency range from 10 to 320 cm-1. We observed softening and broadening ...

    • Thermal expansion study of a uvarovite rich garnet 

      Parthasarthy, G.; Srinivasan, R.; Mukherjee, G. D.; Bansal, C.; Chatterjee, A. (World Scientific Publishing, 2007)
      Thermal expansion measurements have been performed on a uvarovite rich garnet sample for the first time and compared with the expansion data on grossular and pyrope-rich garnets reported in the literature. A semiclassical ...

    • Vibrational and thermodynamic properties of α-, β-, γ-, and 6, 6, 12-graphyne structures 

      Perkgöz, N. K.; Sevik, C. (Institute of Physics Publishing, 2014)
      Electronic, vibrational, and thermodynamic properties of different graphyne structures, namely α-, β-, γ-, and -graphyne, are investigated through first principles-based quasi-harmonic approximation by using phonon dispersions ...