“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	note nova nuclear battery nuclear energy nuclear fission nuclear force nuclear fuel nuclear fusion nuclear isomerism nuclear magnetic resonance nuclear models nuclear moment nuclear physics nuclear power nuclear reaction nuclear reactor nuclear stability nuclear waste nuclear weapons nucleon nucleon emission nucleon number nucleonics nucleosynthesis nucleus

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。