Webinars

Measuring Thermal Conductivity of Metal Hydrides at Elevated Temperatures and Pressures

Guest Speaker: Sarah Ackermann, Researcher at the Univerisity of New BrunswickThe webinar will review related application areas of the TCi Thermal Conductivity Analyzer in assisting with the performance characterization of metal hydrides. Accurate thermal conductivity analysis under representative conditions is of paramount importance to understanding the performance of various metal hydrides as hydrogen sources for fuel cells.  Thermal conductivity allows for cost-effective engineering of devices, by preventing the generation of excess heat and thus reducing inefficiency and mitigating cooling. Additionally, it can allow for selection of more cost-effective materials and for a simplified design process.   The thermal conductivity of a material is affected by the temperature and potential densification of the sample under higher pressure conditions; by the use of compounding materials to prevent pellet degradation; and by morphological and compositional changes induced under normal operations. Hence, it is important to be able to measure the candidate materials under application-relevant conditions. The data thus obtained are important in the selection of candidate hydride materials, and in their subsequent optimization for the application. Here we report the Modified Transient Plane Source (MTPS) with an adapted High Pressure Cell for characterization of the LaNi5-xMx family of AB5-type hydrogen storage materials, and of simple and complex metal hydrides including NaAlH4 and MgH2. The webinar will be of particular interest to any material engineers or research scientists in the field of Metal Hydrides.

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