ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
AWE is a world center of excellence in lithium hydride technology and has 50 years ofexperience in research, characterisation and manufacture of lithium hydride artifacts. Because of itsaffinity for water, lithium hydride is handled under ultra-dry conditions, in argon or nitrogen filledglove boxes. Even when handled with extreme care though it still picks up traces of moisture in thegas atmosphere and the resulting material, when fabricated into shapes, continually outgasses verylow levels of hydrogen.Lithium hydride is a pale grey polycrystalline solid, compacted to less than 100% theoretical density.The generation of hydrogen gas is a major concern as it may be fielded in sealed metal containersthat are susceptible to attack by hydrogen. For this reason, the outgassing has been the subject ofintensive study. It is therefore surprising that its chemical properties are not better understood,properties that are fundamental to developing a model of the materials ageing behaviour.This paper will present our current research investigating the mechanisms of hydrogen outgassing,enhancing specific analytical techniques to probe the unique chemistry, and using our knowledge toimprove resultant ceramic components
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.45.61.pdf
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