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<p>The temperature-dependent behavior of internal friction <i>Q</i><sup><i>− 1</i></sup> and elastic modulus <i>Е</i> of Ge<sub>0.95</sub>Si<sub>0.05</sub> was investigated and represented through the plotting of 3D “indicatory surface of anelastic-elastic body”. On 3D temperature dependence of the elastic modulus <i>E</i> and internal friction <i>Q</i><sup><i>− 1</i></sup> (“indicatory surface of anelastic-elastic body”) of Ge<sub>0.95</sub>Si<sub>0.05</sub> found out the dominant internal friction maximum <i>Q</i><sup><i>− 1</i></sup><sub><i>M3</i></sub> at temperature <i>Т</i><sub><i>М3</i></sub> ≈ 510 К. In the area of existence of the internal friction maximum was the relaxation of the elastic modulus <i>ΔE/E</i>. The absolute values of the elastic modulus increased after annealing, confirming the hardening of Ge<sub>0.95</sub>Si<sub>0.05</sub> crystal. Internal friction maximum <i>Q</i><sup><i>− 1</i></sup><sub><i>М1</i></sub> at temperature <i>T</i><sub><i>М1</i></sub> ≈ 387&#xa0;K and internal friction maximum <i>Q</i><sup><i>− 1</i></sup><sub><i>М2</i></sub> at temperature <i>T</i><sub><i>М2</i></sub> ≈ 421&#xa0;K were discovered due to the process of changing the vacancies <i>V</i> number in the vacancy complexes <i>V</i>-<i>V</i>-<i>V</i> under the influence of variable ultrasound deformation <i>ε</i><sub><i>US</i></sub>.</p>

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Influence of annealing on indicatory surface of anelastic-elastic body of GeSi

  • 期刊论文

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  • 发表日期：

    2025年10月14日

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  • Yurii Onanko,
  • Lyudmyla Kuzmych,
  • Anatoliy Onanko,
  • Stepan Kuzmych,
  • Peter Il’in

摘要

The temperature-dependent behavior of internal friction Q− 1 and elastic modulus Е of Ge0.95Si0.05 was investigated and represented through the plotting of 3D “indicatory surface of anelastic-elastic body”. On 3D temperature dependence of the elastic modulus E and internal friction Q− 1 (“indicatory surface of anelastic-elastic body”) of Ge0.95Si0.05 found out the dominant internal friction maximum Q− 1M3 at temperature ТМ3 ≈ 510 К. In the area of existence of the internal friction maximum was the relaxation of the elastic modulus ΔE/E. The absolute values of the elastic modulus increased after annealing, confirming the hardening of Ge0.95Si0.05 crystal. Internal friction maximum Q− 1М1 at temperature TМ1 ≈ 387 K and internal friction maximum Q− 1М2 at temperature TМ2 ≈ 421 K were discovered due to the process of changing the vacancies V number in the vacancy complexes V-V-V under the influence of variable ultrasound deformation εUS.