Breadcrumb
1R50.40 - Faults in a Crystal
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Code Number: 1R50.40
Demo Title: Faults in a Crystal
Condition: Excellent
Principle: Crystal Formation and Structures.
Area of Study: Mechanics
Equipment:
Crystal Fault Demo, Ping-Pong Balls in Acrylic Container, BB's or Ball Bearings in Plastic Container.
Procedure:
Add the desired amount of ping-pong balls and arrange in an ordered fashion. Turn upside down of shake. Faults will be readily apparent.
Another twist is to use different colored ping-pong balls arranged in an ordered structure. Turn upside down or shake to show random crystal formation.
References:
- Wallace A. Hilton, "Imperfections in Crystals", TPT, Vol. 8, # 6, Sept. 1970, p. 335.
- S. A. Knaack, M. Redden, and M. Onellion, "AAO Nanopore Arrays: A Practical Entree to Nanostructures", AJP, Vol. 72, # 7, July 2004, p. 856.
- W. H. Tantilla, J. Cooper, and D. J. Toms, "Demonstration of Possible Excitations in Liquids", AJP, Vol. 45, # 4, Apr. 1977, p. 395.
- D. A. Kiewit, "A Simple Demonstration of the Pinning of Deformation Fronts", AJP, Vol. 40, #4, April 1972, p. 618.
- Edward N. Sickafus, "Stacking-Fault Model fcc-hcp Unit-Cell Transformation", AJP, Vol. 34, #11, Nov. 1966, p. 1064.
- Ma- 5, Freier and Anderson, A Demonstration Handbook for Physics.
- S- 200, "Tennis Balls & Ball Bearings", DICK and RAE Physics Demo Notebook.
- Mark Wilson, "Nanoscale Ordering From Bulk Processing", Physics Today, May 2014, p. 15.
- W. T. M. Irvine et al., "Taming Topological Defects with Light", Physics Today, Nov. 2013, p. 17.
- N. Gravish, et. al, "Plowing Through a Granular Medium", Physics Today, October 2010, p. 22.
- Steven K. Blau, "A Novel Composite is Stiffer Than Diamond", Physics Today, April 2007, p. 18.
- Back Scatter, "Diamonds from the deep", Physics Today, February 2017, p. 80.
- Yaakov Kraftmakher, "5.1, Equilibrium Point Defects in Metals", Experiments and Demonstrations in Physics, ISBN 981-256-602-3, p. 289.
- Alan Holden and Phylis Morrison, "Solids and Crystals", Crystals and Crystal Growing, p. 32- 37, and Plate 29.
- "Models of Matter", Physics From the Junk Drawer, 3rd Edition, The Science House, North Carolina State University, p. 10.
- W. Bolton, "Dislocation Model", Book I - Properties of Materials, Physics Experiments and Projects, 1968, p. 4.
- Borislaw Bilash II, “Metallic Bonding“, A Demo A Day – A Year of Physical Science Demonstrations, p. 126.