Stochastic dynamics of crystal defec...
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  • Stochastic dynamics of crystal defects[electronic resource] /
  • 紀錄類型: 書目-語言資料,印刷品 : Monograph/item
    杜威分類號: 548.5
    書名/作者: Stochastic dynamics of crystal defects/ by Thomas D. Swinburne.
    作者: Swinburne, Thomas D.
    出版者: Cham : : Springer International Publishing :, 2015.
    面頁冊數: xviii, 100 p. : : ill., digital ;; 24 cm.
    Contained By: Springer eBooks
    標題: Dislocations in crystals - Mathematical models.
    標題: Crystals - Defects
    標題: Physics.
    標題: Solid State Physics.
    標題: Statistical Physics, Dynamical Systems and Complexity.
    標題: Numerical and Computational Physics.
    ISBN: 9783319200194 (electronic bk.)
    ISBN: 9783319200187 (paper)
    內容註: Introduction -- Dislocations -- Stochastic Motion -- Atomistic simulations in bcc Metals -- Properties of Coarse Grained Dislocations -- The Stochastic Force on Crystal Defects -- Conclusions and Outlook.
    摘要、提要註: This thesis is concerned with establishing a rigorous, modern theory of the stochastic and dissipative forces on crystal defects, which remain poorly understood despite their importance in any temperature dependent micro-structural process such as the ductile to brittle transition or irradiation damage. The author first uses novel molecular dynamics simulations to parameterise an efficient, stochastic and discrete dislocation model that allows access to experimental time and length scales. Simulated trajectories are in excellent agreement with experiment. The author also applies modern methods of multiscale analysis to extract novel bounds on the transport properties of these many body systems. Despite their successes in coarse graining, existing theories are found unable to explain stochastic defect dynamics. To resolve this, the author defines crystal defects through projection operators, without any recourse to elasticity. By rigorous dimensional reduction, explicit analytical forms are derived for the stochastic forces acting on crystal defects, allowing new quantitative insight into the role of thermal fluctuations in crystal plasticity.
    電子資源: http://dx.doi.org/10.1007/978-3-319-20019-4
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