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Title: Effects of extreme and unusual conditions on LANA Alloys: year end report, FY15 (U)

Abstract

The Extreme Operating Conditions Project (EXOP) was initiated in FY14 based on the desire to investigate the new ability offered by new hydride bed designs to go to higher temperatures than previously possible. This was especially pertinent due to the results of a scoping study that showed significant changes in isotherms after aging at 240 °C under ~400-600 psia of hydrogen for an extended period of ~1 year. Results from that study are shown in Figure 1. A mid-year 1 and year-end report 2 were issued covering the FY14 results obtained that showed significant isotherm changes could be induced in both LaNi 4.25Al 0.75 (LANA75) and LaNi 4.15Al 0.85 (LANA85) by holding a fully-loaded hydride material at 240 oC for various periods of time. A mid-year report for FY15 3 was also issued that added more data and showed that these changes tended to be complete in ~100 days or less. This report adds new information obtained in the second half of FY15, primarily XRD results on retired samples, while retaining the information from the FY15 Mid-Year Report 3.

Authors:
 [1];  [1]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1501824
Report Number(s):
SRNL-STI-2015-00498
DOE Contract Number:  
DE-AC09-08SR22470
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
Hydrogen, hydride, Lanthanum, Nickel, Aluminum, Alloy

Citation Formats

Shanahan, Kirk L., and Stein, Edward A. Effects of extreme and unusual conditions on LANA Alloys: year end report, FY15 (U). United States: N. p., 2015. Web. doi:10.2172/1501824.
Shanahan, Kirk L., & Stein, Edward A. Effects of extreme and unusual conditions on LANA Alloys: year end report, FY15 (U). United States. doi:10.2172/1501824.
Shanahan, Kirk L., and Stein, Edward A. Wed . "Effects of extreme and unusual conditions on LANA Alloys: year end report, FY15 (U)". United States. doi:10.2172/1501824. https://www.osti.gov/servlets/purl/1501824.
@article{osti_1501824,
title = {Effects of extreme and unusual conditions on LANA Alloys: year end report, FY15 (U)},
author = {Shanahan, Kirk L. and Stein, Edward A.},
abstractNote = {The Extreme Operating Conditions Project (EXOP) was initiated in FY14 based on the desire to investigate the new ability offered by new hydride bed designs to go to higher temperatures than previously possible. This was especially pertinent due to the results of a scoping study that showed significant changes in isotherms after aging at 240 °C under ~400-600 psia of hydrogen for an extended period of ~1 year. Results from that study are shown in Figure 1. A mid-year1 and year-end report2 were issued covering the FY14 results obtained that showed significant isotherm changes could be induced in both LaNi4.25Al0.75 (LANA75) and LaNi4.15Al0.85 (LANA85) by holding a fully-loaded hydride material at 240 oC for various periods of time. A mid-year report for FY153 was also issued that added more data and showed that these changes tended to be complete in ~100 days or less. This report adds new information obtained in the second half of FY15, primarily XRD results on retired samples, while retaining the information from the FY15 Mid-Year Report3.},
doi = {10.2172/1501824},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

Technical Report:

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