Illustrating phase transitions with soap films
作者:
David R. Lovett,
John Tilley,
期刊:
American Journal of Physics
(AIP Available online 1991)
卷期:
Volume 59,
issue 5
页码: 415-421
ISSN:0002-9505
年代: 1991
DOI:10.1119/1.16520
出版商: American Association of Physics Teachers
关键词: PHASE TRANSFORMATIONS;SOAPS;FILMS;CATASTROPHE THEORY
数据来源: AIP
摘要:
First‐order and second‐order phase transitions are demonstrated using soap‐film models. The models consist of two‐dimensional parallel plates or three‐dimensional frameworks in which film patterns are maintained. By making the sizes of the frameworks variable, it is possible to induce switching between film patterns analogous to transitions between phases. These phase changes are discussed thermodynamically and using a catastrophe theory model.
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