dc.contributor
Universitat Politècnica de Catalunya. Departament de Física
dc.contributor
Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.contributor.author
Duarte Correa, María Jazmín
dc.contributor.author
Bruna Escuer, Pere
dc.contributor.author
Pineda Soler, Eloi
dc.contributor.author
Crespo Artiaga, Daniel
dc.contributor.author
Garbarino, Gaston
dc.contributor.author
Verbeni, Roberto
dc.contributor.author
Zhao, Kun
dc.contributor.author
Wang, Wei Hua
dc.contributor.author
Romero Castro, Aldo Humberto
dc.contributor.author
Serrano Gutiérrez, Jorge
dc.date.issued
2011-12-01
dc.identifier
Duarte, M. [et al.]. Polyamorphic transitions in Ce-based metallic glasses by synchrotron radiation. "Physical review B: condensed matter and materials physics", 1 Desembre 2011, vol. 84, núm. 22, p. 224116.
dc.identifier
https://hdl.handle.net/2117/189342
dc.identifier
10.1103/PhysRevB.84.224116
dc.description.abstract
We report here on a polyamorphic-phase transition upon application of pressure on a Ce-based metallic glass,
Ce70Al10Ni10Cu10, investigated by x-ray diffraction and inelastic x-ray scattering. This alloy is found to display a
strong hysteresis in volume per atom upon application and subsequent release of pressure. The observed structural
changes are correlated with changes observed by inelastic x-ray scattering in the elastic constants, acoustic mode
frequencies, and sound speed. The results reported here point toward three different amorphous phases for this
alloy existing in the 0–25 GPa pressure region: low- and high-density states and an intermediate mixed state that
displays a hysteresis behavior. Finally, we discuss the impact of Ce concentration on the polyamorphic transition
for a series of Ce-based metallic glass alloys and link it to the phase transformation between ¿ -Ce and a-Ce
under pressure.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
http://prb.aps.org/abstract/PRB/v84/i22/e224116
dc.relation
info:eu-repo/grantAgreement/MICINN//MAT2010-14907/ES/PRODUCCION DE VIDRIOS METALICOS MASIVOS. ESTUDIO DE LA ESTRUCTURA LOCAL Y ESTABILIDAD PARA LA MEJORA DE PROPIEDADES MECANICAS 2/
dc.relation
info:eu-repo/grantAgreement/AGAUR/2009SGR-1225
dc.relation
info:eu-repo/grantAgreement/AGAUR/2009SGR-1251
dc.rights
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights
Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.subject
Àrees temàtiques de la UPC::Física
dc.subject
Synchrotron radiation
dc.subject
Cerium -- Effect of radiation on
dc.subject
Metallic glasses
dc.subject
Liquid Phase-transition
dc.subject
Silicon Systems
dc.subject
Radiació sincrotrònica
dc.subject
Vidres metàl·lics
dc.title
Polyamorphic transitions in Ce-based metallic glasses by synchrotron radiation
