High pressure study of gamma iron oxide up to 52 GPa by x-ray diffraction

Simple item page
dc.contributor.committeeChairMa, Yanzhang
dc.contributor.committeeMemberErtas, Atila
dc.contributor.committeeMemberLevitas, Valery
dc.creatorSandhu, Jagdev S.
dc.date.accessioned2016-11-14T23:15:43Z
dc.date.available2012-06-01T16:49:12Z
dc.date.available2016-11-14T23:15:43Z
dc.date.issued2005-12
dc.degree.departmentMechanical Engineering
dc.description.abstractThe high pressure behavior of ã- Fe2O3 has been investigated up to 52 GPa using X-ray diffraction techniques and a diamond anvil cell. We are reporting phase transformation of bulk and nanocrystalline ã- Fe2O3 samples. The behavior of bulk sample has been carried out to 31.9 GPa and nano sample has been examined to 51.8 GPa. The phase transformation pressure of nanocrystalline sample is about 20.8 GPa. The bulk modulus of bulk sample is KOT = 172.5 ± 5.6 GPa, and its pressure derivative, K’OT = 20.6 ± 1.0 and in case of nano sample, KOT =135.21 ± 6.38 GPa, and its pressure derivative is K’OT = 28.01 ± 1.91.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2346/1384
dc.language.isoeng
dc.publisherTexas Tech University
dc.rights.availabilityUnrestricted.
dc.subjectHigh pressure study
dc.subjectGamma iron oxide
dc.titleHigh pressure study of gamma iron oxide up to 52 GPa by x-ray diffraction
dc.typeThesis

Files

Collections

Texas Tech University