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Study of High Temperature Insulation Materials

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Vaclav Mentlik, Eva Kucerova, Vaclav Bocek, Pavel Sebik

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Abstract

One of current objectives of the electro insulating technology is the development of the material for extreme conditions. There is a need to operate some devices in extreme temperatures, for example the propulsion of the nuclear fuel bars. In these cases there is necessary to provide not just insulating property, but also the thermal endurance with the required durability of the insulating materials. Critical is the determination of the limit stress for the irreversible structure modification with relation to material property changes. For this purpose there is necessary to conduct lot of test on chosen materials to determine the limits mentioned above. Content of this article is the definition of diagnostic mode, including the definition of the exposure factors, definitions of the diagnostic system for data acquisition and first result of examinations.

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