PICK, MA;
SHAPIRO, SM;
STONEHAM, AM;
(1986)
HYDROGEN TRAPPING IN NIOBIUM VANADIUM ALLOYS.
J PHYS F MET PHYS
, 16
(8)
961 - 968.
10.1088/0305-4608/16/8/010.
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Abstract
The authors have measured the localised vibrational modes of hydrogen in a Nd0.93V0.07 alloy. As one cools the sample for the first time to 10K one observes that hydrogen is trapped at octahedral sites associated with two substitutional vanadium atoms. The trap energy is small (10-20 meV) and less than the precipitation enthalpy. The phenomenon exhibits an interesting hysteresis. On repeated cooling cycles the hydrogen atoms tend to precipitate rather than stay in the trap sites. This is due to the formation of additional nucleation sites on the first cooling cycle.
| Type: | Article |
|---|---|
| Title: | HYDROGEN TRAPPING IN NIOBIUM VANADIUM ALLOYS |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0305-4608/16/8/010 |
| Publisher version: | http://dx.doi.org/10.1088/0305-4608/16/8/010 |
| Language: | English |
| Additional information: | Text made available to UCL Discovery by kind permission of IOP Publishing, 2012 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/59672 |
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