Author:
Mignerot Florent,Kedjar Bouzid,Bahsoun Hadi,Thilly Ludovic
Abstract
AbstractRoom-temperature deformation mechanism of InSb micro-pillars has been investigated via a multi-scale experimental approach, where micro-pillars of 2 µm and 5 µm in diameter were first fabricated by focused ion beam (FIB) milling and in situ deformed in the FIB-SEM by micro-compression using a nano-indenter equipped with a flat tip. Strain rate jumps have been performed to determine the strain rate sensitivity coefficient and the related activation volume. The activation volume is found to be of the order of 3–5 b3, considering that plasticity is mediated by Shockley partial dislocations. Transmission electron microscopy (TEM) thin foils were extracted from deformed micro-pillars via the FIB lift-out technique: TEM analysis reveals the presence of nano-twins as major mechanism of plastic deformation, involving Shockley partial dislocations. The presence of twins was never reported in previous studies on the plasticity of bulk InSb: this deformation mechanism is discussed in the context of the plasticity of small-scale samples.
Funder
LABEX INTERACTIFS
European Regional Development Fund
Publisher
Springer Science and Business Media LLC
Reference37 articles.
1. Rabier, J. et al. Plastic deformation of silicon between 20 °C and 425 °C. Phys. Status Solidi C 4, 3110–3114 (2007).
2. Rabier, J., Pizzagalli, L. & Demenet, J. L. Dislocations in Silicon at High Stress. in Dislocations in Solids (eds. Hirth, J. P. & Kubin, L.) vol. 16 47–108 (Elsevier, 2010).
3. Suzuki, T., Yasutomi, T., Tokuoka, T. & Yonenaga, I. Plasticity of III–V compounds at low temperatures. Phys. Status Solidi A 171, 47–52 (1999).
4. Yonenaga, I. Hardness of bulk single-crystal GaN and AlN. Mater. Res. Soc. Internet J. Nitride Semicond. Res. 7, 1–14 (2002).
5. Kedjar, B., Thilly, L., Demenet, J.-L. & Rabier, J. Plasticity of indium antimonide between −176 and 400°C under hydrostatic pressure. Part I: Macroscopic aspects of the deformation. Acta Mater. 58, 1418–1425 (2010).
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献