TY - GEN
T1 - In-situ chemistry mapping of hydrogen storage materials by neutron diffraction
AU - Payzant, E. A.
AU - Bowman, R. C.
AU - Johnson, T. A.
AU - Jorgensen, S. W.
PY - 2013
Y1 - 2013
N2 - Neutron diffraction was used to nondestructively study the microstructures for two hydrogen storage media systems. In the first case, sodium alanate based hydrogen storage is a vehicle-scale candidate system developed by Sandia and General Motors. Neutron scattering was used to determine the distribution of phases in the storage media at different hydrogen loading levels, to help understand the absorption/desorption of hydrogen in large-scale systems. This study also included a 3D neutron tomographic study of the microstructure. In the second case, tin-doped lanthanum nickel alloys have been studied at the Jet Propulsion Laboratory for space-based applications, for which the gradual degradation of the material due to segregation and disproportionation of phases is a known problem. A regenerative process developed to restore the storage properties of these alloys was studied, using in-situ neutron diffraction to relate the microstructure to the thermodynamic simulations.
AB - Neutron diffraction was used to nondestructively study the microstructures for two hydrogen storage media systems. In the first case, sodium alanate based hydrogen storage is a vehicle-scale candidate system developed by Sandia and General Motors. Neutron scattering was used to determine the distribution of phases in the storage media at different hydrogen loading levels, to help understand the absorption/desorption of hydrogen in large-scale systems. This study also included a 3D neutron tomographic study of the microstructure. In the second case, tin-doped lanthanum nickel alloys have been studied at the Jet Propulsion Laboratory for space-based applications, for which the gradual degradation of the material due to segregation and disproportionation of phases is a known problem. A regenerative process developed to restore the storage properties of these alloys was studied, using in-situ neutron diffraction to relate the microstructure to the thermodynamic simulations.
UR - http://www.scopus.com/inward/record.url?scp=84893508103&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84893508103
SN - 9781629933092
T3 - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
SP - 996
EP - 1003
BT - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
T2 - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
Y2 - 27 October 2013 through 31 October 2013
ER -
