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

Point Defects in Crystals (2-page activity)

Interactive model, with minimal support

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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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NSF Logo
These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701, EIA-0219345, DUE-0402553, and 0628181.

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.