|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||A Differential Scanning Calorimetry Study of the Combustion Synthesis of Metal Hexaborides
||C. Ingram Vargas Consuelos, Felix Monge, Arash Yazdani, Olivia A. Graeve
|On-Site Speaker (Planned)
||C. Ingram Vargas Consuelos
Metal hexaborides present exceptional thermochemical and electrochemical behavior making them suitable for a variety of advanced applications, including electron emission, high temperature coatings, and neutron radiation absorption. The exploration of new techniques to synthesize these materials in an inexpensive and rapid way can result in their use in new advanced applications. Thus, we have explored a new combustion technique for the synthesis of these materials that results in powders of unique cubic morphologies. Aiming to improve the powder morphology and reduce the particle agglomeration, different quantities of LiCl diluent were added to the reactants. The reactant mixture consisted of the relevant metal nitrate, an organic fuel (i.e., carbohydrazide), and the LiCl diluent. Specifically, we present the analysis of the combustion synthesis of LaB<sub>6</sub>, CeB<sub>6</sub>, BaB<sub>6</sub> and SrB<sub>6</sub> by differential scanning calorimetry and thermogravimetric analysis. The resultant products were also investigated by scanning electron microscopy and X-ray diffraction.