Mica/gas composites as thermal actuators

F. G. Karioris; Louis Cartz; Gary A. Hishmeh; Xinxing Yang; Claude Templier

doi:10.1117/12.148481

23 July 1993 Mica/gas composites as thermal actuators

F. G. Karioris, Louis Cartz, Gary A. Hishmeh, Xinxing Yang, Claude Templier

Proceedings Volume 1916, Smart Structures and Materials 1993: Smart Materials; (1993) https://doi.org/10.1117/12.148481
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

Natural phlogopite micas have anomalously high, yet reversible thermal expansion, over 100% at 600 degree(s)C, attributed to non-structural water entrapped between the silicate layers. Above 100 degree(s)C, the mica-water vapor composite expands like a gas in an elastic membrane, stable to repeated thermal cycling to over 600 degree(s)C. Muscovite mica-noble gas composites are prepared by implantation and are stable with time and temperature to 600 degree(s)C. The behavior of the implanted gas is studied by Rutherford backscattering and transmission electron microscopy. Helium diffuses out slowly over a period of six months. A capacitometer is required to measure the thermal expansion of implanted specimens less than 1 micrometers thick.

Citation Download Citation

F. G. Karioris, Louis Cartz, Gary A. Hishmeh, Xinxing Yang, and Claude Templier "Mica/gas composites as thermal actuators", Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); https://doi.org/10.1117/12.148481

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