“defect”的概念、定义、习题解题方法及翻译-物理辞典

单词	defect
释义	defect 1 A discontinuity in a crystal lattice. A point defect consists either of a missing atom or ion creating a vacancy in the lattice (a vacancy is sometimes called a Schottky defect ) or an extra atom or ion between two normal lattice points creating an interstitial . A Frenkel defect consists of a vacancy in which the missing atom or ion has moved to an interstitial position. If more than one adjacent point defect occurs in a crystal there may be a slip along a surface causing a line defect (or dislocation ). Defects are caused by strain or, in some cases, by irradiation. All crystalline solids contain an equilibrium number of point defects above absolute zero; this number increases with temperature. The existence of defects in crystals is important in the conducting properties of semiconductors. 2 See mass defect.
随便看	critical damping critical mass critical pressure critical reaction critical state critical temperature critical volume CRO Crookes, Sir William cross product cross section crucible cryogenic pump cryogenics cryohydrate cryometer cryoscopic constant cryostat cryotron crystal crystal counter crystal defect crystal habit crystal lattice crystal microphone

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。