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Theory of emanation thermal analysis. IV. Influence of inertia of the apparatus on the form of the ETA curve and reconstruction of the true form of the ETA curve during thermally stimulated inert gas releaseстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Beckman I.N., Shviryaev A.A., Balek V.
- Журнал: Thermochimica Acta
- Том: 104
- Номер: C
- Год издания: 1986
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 255
- Последняя страница: 265
- Аннотация: Factors influencing the response of the apparatus for emanation thermal analysis are discussed and the ETA computed curves accounting for the various factors are demonstrated. The influence of inertia of the ETA apparatus is demonstrated on model short time pulses as well as on ETA curves obtained during thermally stimulated inert gas release. Examples of the distortion of ETA curves when using different inert gases are given. A method for the reconstruction of the true ETA curve, based on the determination of the apparatus response to a "one second model pulse" is suggested. This method has other applications and may be used not only for ETA but also, for example, for evolved gas analysis curves. A practical example of the reconstruction of an ETA curve is given which was obtained with polypropylene foil at the following conditions: heating rate 4°C min-1, the temperature range from -196 to + 400°C. © 1986.
- Добавил в систему: Бекман Игорь Николаевич