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Activity Number
187
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Overview and Learning Objectives
Central Concepts
Activity Credits
Requirements

Point Defects in Crystals

Interactive model, with minimal support

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  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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Overview and Learning Objectives

The right model consists of all these three types of point defects. Can you identify them?

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Central Concepts

Key Concept:

No crystal is perfect. There are several types of imperfections in crystals. The simplest one is called a point defect. Point defects include three types: vacancies, interstitials, and substitutionals. Point defects are believed to play an important role in phase transitions, including melting.

Additional Related Concepts

Physics/Chemistry

  • Crystal
  • Crystallization

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Activity Credits

Created by CC Project: CCATOMS using Molecular Workbench

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Requirements

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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Last Update: 11/25/2008 Maintainer: CC Web Team (webmaster@concord.org)
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Copyright © 2008, The Concord Consortium.
All rights reserved.

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These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701 and EIA-0219345

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.