TY - JOUR
T1 - Mechanical and thermodynamic properties of infrared transparent low melting chalcogenide glass
AU - Bormashenko, Edward
AU - Pogreb, Roman
AU - Sutovsky, Semion
AU - Lusternik, Victor
AU - Voronel, Alexander
N1 - Funding Information:
The authors wish to thank the Israel Ministry of Absorption for partial support of this work.
PY - 2002/12
Y1 - 2002/12
N2 - The properties of infrared (IR) transparent chalcogenide glass Se57I20As18Te3Sb2 have been studied for the first time by dynamic mechanical analysis (DMA). This glass demonstrates both high transparency in a broad IR band (1-12 μm) and a particularly low softening point (near 50 °C). It is known as one of the best adhesives intended for the binding of IR optics elements. The DMA method gives valuable information about the complex Young's modulus of the glass in its softening region. In parallel with the study of mechanical properties of the glass the character of its glass transition process has been investigated. Our results of DMA were then compared with our thermodynamic data obtained by scanning calorimetry. The peak of mechanical losses in DMA appears to be situated considerably higher than the calorimetrically determined glass transition temperature.
AB - The properties of infrared (IR) transparent chalcogenide glass Se57I20As18Te3Sb2 have been studied for the first time by dynamic mechanical analysis (DMA). This glass demonstrates both high transparency in a broad IR band (1-12 μm) and a particularly low softening point (near 50 °C). It is known as one of the best adhesives intended for the binding of IR optics elements. The DMA method gives valuable information about the complex Young's modulus of the glass in its softening region. In parallel with the study of mechanical properties of the glass the character of its glass transition process has been investigated. Our results of DMA were then compared with our thermodynamic data obtained by scanning calorimetry. The peak of mechanical losses in DMA appears to be situated considerably higher than the calorimetrically determined glass transition temperature.
KW - Chalcogenide glass
KW - Dynamic mechanical analysis
KW - Glass transition
KW - Infrared transparency band
KW - Loss modulus
KW - Scanning calorimeter
KW - Storage modulus
UR - https://www.scopus.com/pages/publications/0036887413
U2 - 10.1016/S1350-4495(02)00122-6
DO - 10.1016/S1350-4495(02)00122-6
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AN - SCOPUS:0036887413
SN - 1350-4495
VL - 43
SP - 397
EP - 399
JO - Infrared Physics and Technology
JF - Infrared Physics and Technology
IS - 6
ER -