Photothermochemical process in ammonium perchlorate crystals: II |
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| Authors: | EJu Ivanov VV Boldyrev EF Khairetdinov |
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| Institution: | Institute of Physico-Chemical Principles of Processing of Mineral Raw Materials of Siberian Division of the U.S.S.R. Academy of Sciences, Novosibirsk, 630091, Derzhavina, 18, U.S.S.R. |
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| Abstract: | The influence of phase transition (PT) on the process of thermal development of a latent image arising after X-ray and uv irradiation of ammonium perchlorate (AP) crystals has been studied. Despite the production of a large number of new dislocations accompanying PT, it essentially does not influence the thermal development: The developed image does not smear at PT, remaining as clear as before it. By comparing mirror-symmetric surfaces of cleavage planes of AP crystals, it has been shown that at doses of X-ray and uv irradiation sufficient for obtaining an image, no production of new dislocations was observed in AP crystals. It is suggested that latent image arises due to formation during irradiation of chlorine oxidic products of radiolysis: ClO3, ClO2, and ClO as well as the corresponding ions ClO?, ClO?2, and ClO?3, i.e., initiators of AP low-temperature decomposition. |
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