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等温微量热法应用于炸药和材料的稳定性及相容性的测试
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| Microcalorimetry is a powerful tool for solving compatibility and stability problems for explosives and other materials. It is a very general method due to the fact that practically all physical and chemical processes are accompanied by heat exchange. The high sensitivity of the method makes it possible to carry out measurements at temperatures close to real conditions and to detect very slow (ageing) reactions. In compatibility studies, the heat flow is measured separately for the two materials and for a mixture of these. The experimental heat flow curve for the mixture is compared with a calculated hypothetical curve for the same mixture with no physical and chemical interactions. An interaction energy is defined as the time integral of the difference between these curves. Heat flow data, interaction energies and physical and chemical properties of the materials are considered in the interpretations. Three different compatibility problems are discussed. |
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2016-06-30 16:24:15, 651.97 K
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