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Proceedings Paper

Self-propagating phase transformations in metastable media induced by ion bombardment
Author(s): Vladimir V. Ovchinnikov
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Paper Abstract

Resistometry, X-ray and NGR methods have been used to investigate phase transformations long-range type in submillimeter layers of Fe69Ni31 and Pd2AuFe alloys under ion bombardment. In situ measurements were made simultaneously resistivity and temperature on plate specimens 100 - 400 micrometers thick. The observed transformations are considered to be a new type of radiation-induced self-spreading phase transformation similar to combustion and detonation phenomena, propagating at a speed equal to or exceeding that of sound in the material. In accordance with the proposed model the transformations take place in metastable media at solitary wave fronts generated as a result of evolution of atom collision cascades. Equations are proposed describing the emergence of undamped solitary waves with self- regulating amplitudes which bring about such transformation.

Paper Details

Date Published: 1 May 1994
PDF: 4 pages
Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); doi: 10.1117/12.174598
Show Author Affiliations
Vladimir V. Ovchinnikov, Institute of Electrophysics (Russia)

Published in SPIE Proceedings Vol. 2259:
XVI International Symposium on Discharges and Electrical Insulation in Vacuum
Gennady A. Mesyats, Editor(s)

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