Lawrence Bragg's interest in the deformation of metals and 1950-1953 in the Cavendish - a worm's-eye view.

IF 1.8 4区材料科学

Acta Crystallographica Section A Pub Date : 2013-01-01 Epub Date: 2012-12-05 DOI:10.1107/S0108767312034356

Anthony Kelly

引用次数: 7

Abstract

This paper recounts the atmosphere in the Cavendish Laboratory during Lawrence Bragg's triumphant final years there through the eyes and the work of a young research student, and hence reflects some measure of Bragg's personality. The opportunity is taken to deal in detail with Bragg's contribution to our understanding of crystal plasticity, which is seldom described, being overshadowed by his many superb contributions to the determination of crystal structure. Bragg produced in 1940-1942, through his development of the bubble model of a crystal structure, the first demonstration of how crystal dislocations move. His suggestion of the use of microbeams led rather directly to the development of modern thin-film transmission electron microscopy.

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劳伦斯·布拉格对金属变形的兴趣和1950-1953年在卡文迪什的研究——一个蚯蚓的视角。

这篇论文通过一个年轻的研究学生的眼睛和工作，叙述了劳伦斯·布拉格在卡文迪什实验室胜利的最后几年里的气氛，从而反映了布拉格的性格。我们利用这个机会来详细讨论布拉格对我们理解晶体可塑性的贡献，这一点很少被描述，被他对确定晶体结构的许多卓越贡献所掩盖。布拉格在1940-1942年间，通过他对晶体结构的气泡模型的发展，首次证明了晶体位错是如何移动的。他关于使用微光束的建议直接导致了现代薄膜透射电子显微镜的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Crystallographica Section A 化学-晶体学

自引率

11.10%

发文量

审稿时长

3 months

期刊介绍： Acta Crystallographica Section A: Foundations and Advances publishes articles reporting advances in the theory and practice of all areas of crystallography in the broadest sense. As well as traditional crystallography, this includes nanocrystals, metacrystals, amorphous materials, quasicrystals, synchrotron and XFEL studies, coherent scattering, diffraction imaging, time-resolved studies and the structure of strain and defects in materials. The journal has two parts, a rapid-publication Advances section and the traditional Foundations section. Articles for the Advances section are of particularly high value and impact. They receive expedited treatment and may be highlighted by an accompanying scientific commentary article and a press release. Further details are given in the November 2013 Editorial. The central themes of the journal are, on the one hand, experimental and theoretical studies of the properties and arrangements of atoms, ions and molecules in condensed matter, periodic, quasiperiodic or amorphous, ideal or real, and, on the other, the theoretical and experimental aspects of the various methods to determine these properties and arrangements.