Internal Friction in Deformed Germanium Single Crystals
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概要
- 論文の詳細を見る
The internal friction of germanium single crystals is investigated in the temperature range from 77 to 503°K at resonance frequencies of about 1200 Hz. Two relaxation peaks P_1 and P_2 with activation energies of (0.62±0.03) and (0.85±0.03) eV, respectively, are observed to develop in deformed crystals. The height of peak P_1 increases drastically upon deformation while it decreases gradually upon annealing. Peak P_1 is interpreted to be associated with the motion of geometrical kinks on dislocations. Peak P_2 develops only after a moderate plastic deformation followed by a subsequent annealing. It could be interpreted to be associated with the motion of dislocations in the surface region by means of single kink formation.
- 東北大学の論文
著者
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Sumino K.
The Research Institute For Iron Steel And Other Metals
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OHORI K.
The Research Institute for Iron, Steel and Other Metals
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Ohori K.
The Research Institute For Iron Steel And Other Metals
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SUMINO K.
The Research Institute for Iron, Steel and Other Metals
関連論文
- Mechanical Behaviour of Crystals with Twinned Structure
- Internal Friction in Deformed Germanium Single Crystals
- Internal Friction in Deformed Germanium Crystals at Low Temperatures
- Easy Operation of Dislocation Sources in the Surface Region of Crystal during Plastic Deformation
- Surface Dislocations and the Growth of Deformation Twins
- Experimental Determination of Intrinsic Resistive Stress for Twinning Surface Dislocations