Determination of the Metal Content of a Pyrotechnic Aluminium Nanometric Powder: Study of the Effect of Powder History

In many domains (pharmaceutical, food industry, pyrotechnics materials …), the physico-chemical properties of powders impact hugely the quality of the final product. Normalized tests for granulomorphological and chemical characterizations of powders help to control their quality and the reproducibility batch to batch for limitation of the problems in production. Despite the use of standardized protocols, special care must be taken in the interpretation of the results because; unexpected phenomena related to the history of the powder can lead to poor conclusions. This application is focused on the metal content determination in a pyrotechnic nanopowders using thermogravimetric measurements and shows how results can be influenced by the powder history.

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