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SUMMARY:Diffuse Scattering Studies from a Martensitic Fe-Pd Alloy
DTSTART;VALUE=DATE-TIME:20211125T064800Z
DTEND;VALUE=DATE-TIME:20211125T064900Z
DTSTAMP;VALUE=DATE-TIME:20260718T054612Z
UID:indico-contribution-4189@events01.synchrotron.org.au
DESCRIPTION:Speakers: Trevor Finlayson (University of Melbourne)\nFrom lit
 erature reports\, Fe-Pd alloys in the vicinity of Fe-30at%Pd exhibit two m
 artensitic transformations on being cooled from just above room temperatur
 e to about 100 K. A preliminary study of a large single crystal of this co
 mposition at the KOALA beamline\, not only showed evidence for these trans
 formations but also revealed most interesting satellite reflections around
  certain Bragg spots. The crystal was then studied further in two triple-a
 xis experiments. The first was at TAIPAN\, specifically to study elastic s
 cattering and the second\, at SIKA\, to study quasi-elastic scattering bot
 h in the vicinity of certain Bragg peaks but also around the satellite ref
 lections observed at KOALA. During a parallel experiment to the SIKA one\,
  an ideally small piece of the crystal was studied at KOALA but the intere
 sting satellites found for the large crystal were not present. As a result
 \, in a further experiment on the large crystal at KOALA\, completed in ea
 rly 2021\, diffraction patterns were collected with the aim of surveying t
 he whole of the large crystal\, particularly in the vicinity of the edge f
 rom which the ideally small crystal piece had been extracted by electro-di
 scharge machining. The results from this last experiment will be summarise
 d and discussed in relation to the earlier triple-axis and KOALA results.\
 n\nhttps://events01.synchrotron.org.au/event/146/contributions/4189/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4189/
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