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Title: in-situ chemistry mapping of hydrogen storage materials by neutron diffraction

Abstract

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/GM. 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 JPL 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.

Authors:
 [1];  [1];  [2];  [3]
  1. ORNL
  2. Sandia National Laboratories (SNL)
  3. GM R&D and Planning, Warren, Michigan
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1098183
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: Materials Science & Technology 2013, Montreal, Canada, 20131027, 20131027
Country of Publication:
United States
Language:
English
Subject:
hydrogen storage

Citation Formats

Payzant, E Andrew, Bowman, Jr, Robert C, Johnson, Terry A, and Jorgensen, Scott W. in-situ chemistry mapping of hydrogen storage materials by neutron diffraction. United States: N. p., 2013. Web.
Payzant, E Andrew, Bowman, Jr, Robert C, Johnson, Terry A, & Jorgensen, Scott W. in-situ chemistry mapping of hydrogen storage materials by neutron diffraction. United States.
Payzant, E Andrew, Bowman, Jr, Robert C, Johnson, Terry A, and Jorgensen, Scott W. 2013. "in-situ chemistry mapping of hydrogen storage materials by neutron diffraction". United States.
@article{osti_1098183,
title = {in-situ chemistry mapping of hydrogen storage materials by neutron diffraction},
author = {Payzant, E Andrew and Bowman, Jr, Robert C and Johnson, Terry A and Jorgensen, Scott W},
abstractNote = {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/GM. 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 JPL 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.},
doi = {},
url = {https://www.osti.gov/biblio/1098183}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}

Conference:
Other availability
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