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Exothermic Effects in Mixtures of Several Low-Molecular Organic Compounds with 50 wt % Aluminum after High-Pressure Plastic Deformationстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 марта 2022 г.
- Авторы: Zhorin V.A., Kiselev M.R.
- Журнал: Russian Journal of Physical Chemistry A
- Том: 95
- Номер: 1
- Год издания: 2021
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 11
- Последняя страница: 20
- DOI: 10.1134/s0036024421010337
- Аннотация: DSC and thermogravimetry show that the thermal decomposition of anthracene, adamantane, melamine, pentaerythritol, cyanuric, aspartic and succinic acids is followed by endothermic effects. It is found that the enthalpies of endothermic processes vary from 500 J g−1 (for adamantane) to 1900 J g−1 (for pentaerythritol) and depend on the elemental composition of the organic compounds. The plastic deformation of the mixtures of the organic compounds containing 50 wt % of aluminum is done at a pressure of 1 GPa in a high-pressure apparatus of the anvil type. Endothermic peaks are registered in the thermograms of mixtures containing anthracene, melamine, and cyanuric acid in the temperature range of the decomposition of the organic compounds; exothermic peaks are registered in the thermograms of mixtures containing adamantane, succinic acid, pentaerythritol, and aspartic acid. Exothermic processes related to the oxidation and nitriding of aluminum are registered in the thermograms of all mixtures in the temperature range of 400–800°С. The total enthalpies of exothermic processes in deformed samples are determined. They vary from 1.9 kJ g−1 (for the mixture containing melamine) to 36.0 kJ g−1 (for the mixture containing pentaerythritol). The dependences of the results from DSC and thermogravimetric studies on the gaseous medium used in measuring (air, nitrogen, or argon) are determined.
- Добавил в систему: Кулькова Татьяна Алексеевна