Temperature dependence of Young's modulus and internal friction of G-10CR and G-11CR epoxy resins

Cryogenics ◽  
1980 ◽  
Vol 20 (11) ◽  
pp. 655 ◽  
Author(s):  
H.M. Ledbetter ◽  
G. Maerz
Keyword(s):  
Internal Friction ◽  
Temperature Dependence ◽  
Young’S Modulus ◽  
Epoxy Resins ◽  
Young's Modulus

scholarly journals Влияние водорода на модуль Юнга и внутреннее трение сплава V-4Ti-4Cr

2021 ◽  
Vol 63 (12) ◽  
pp. 2138
Author(s):  
Б.К. Кардашев ◽  
К.В. Сапожников
Keyword(s):  
Internal Friction ◽  
Temperature Dependence ◽  
Young’S Modulus ◽  
Hydrogen Content ◽  
Young's Modulus ◽  
Relaxation Peak ◽  
Temperature Spectrum ◽  
Temperature Range ◽  
Oscillation Frequencies

Young's modulus and internal friction of the V-4Ti-4Cr alloy with different hydrogen content were studied in the temperature range of 100 − 300 К at oscillation frequencies of about 100 kHz. It is shown that hydrogenation of the alloy gives rise to a minimum in the temperature dependence of Young's modulus due to the precipitation/dissolution of vanadium monohydride particles, and a relaxation peak in the temperature spectrum of internal friction at temperatures of about 140 К, which can be associated with the Snoek-type hydrogen relaxation caused by the Ti-H interaction.

Temperature coefficient of Young’s modulus of silver microwhiskers determined by a laser Doppler vibration measurement

2021 ◽  
pp. 2150350
Author(s):  
Yijun Jiang ◽  
Mingyuan Lu ◽  
Shiliang Wang ◽  
Han Huang
Keyword(s):  
Temperature Dependence ◽  
Temperature Coefficient ◽  
Single Crystals ◽  
Young’S Modulus ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Young's Modulus ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Vibration Measurement

Temperature dependence of Young’s modulus of Ag microwhiskers was determined by a laser Doppler vibrometer. The Ag whiskers with diameters in sub-microns were synthesized by the use of physical vapor deposition (PVD). They have a five-fold twinned structure grown along the [1 1 0] direction. The temperature coefficient of Young’s modulus was measured to be [Formula: see text] ppm/K in the range of 300 K to 650 K. The measured values are very close to the reported values of [Formula: see text] ppm/K for bulk Ag single crystals. This finding can benefit the design of Ag-based micro/nano-electromechanical systems or micro/nano-interconnectors operated at elevated or lowered temperatures.

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