2018 Bronze Medal Award

The group is recognized for the development and use of a high-pressure chamber for in-situ mechanical testing of structural materials in H₂ environments. The accomplishment is significant given these first-ever measurements provided direct evidence for two H₂ embrittlement mechanisms — evidence provided via the design and fabrication of a chamber with strict geometric and material constraints and substantial safety considerations and collaborative efforts. The results have considerably advanced measurement science in physical infrastructure, with impacts including an increased understanding of reliable storage and transportation methods, new fields of research for neutron and synchrotron beamlines, and technology transfer to an international user facility.