Study of properties of Se-based infrared chalcogenide glasses using dynamical mechanical analysis

Edward Bormashenko, Roman Pogreb, Semion Sutovsky, Avigdor Sheshnev, Victor Lusternik, Alexander Voronel

Research output: Contribution to journalConference articlepeer-review


Mechanical properties of glassy selenium and selenium based infrared chalcogenide glasses Se55As45, Se67.5As 20Ge12.5 and Se57I20As 18Te3Sb2 were first studied using dynamical mechanical analysis (DMA). DMA method gave the valuable information about complex Young's modulus of the glassy materials. In parallel with the study of mechanical properties of pure Se and Se-based IR glasses there also has been cleared the character of the glass transition process. The results of DMA study were compared with data obtained by differential calorimetry. The glass transition temperature, established by calorimetric measurements is lower than the temperature, which corresponds to peaks of the loss tangent for all kinds of materials under study. Activation energies of relaxation processes in IR chalogenide glasses were calculated using DMA data.

Original languageEnglish
Pages (from-to)110-117
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
EventLaser Crystals, Glasses, and Nonlinear Materials Growth and Characterization - San Jose, CA, United States
Duration: 28 Jan 200330 Jan 2003


  • Calorimetry
  • Chalcogenide glass
  • DMA
  • Glass transformation
  • Infrared
  • Loss modulus
  • Loss tangent
  • Melting point
  • Selenium
  • Storage modulus


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