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Mostrando ítems 1-8 de 8
Artículo
Dynamic heat flux experiments in Cu67.64Zn 16.71Al15.65: Separating the time scales of fast and ultra-slow kinetic processes in martensitic transformations
(American Institute of Physics, 2011)
Crackling noise and avalanches during the martensite phase transformation of Cu67.64Zn16.71Al15.65 were investigated. Heat flux measurements with extremely slow heating rates of 0.005 Kh -1 allowed sufficient separation ...
Artículo
Deformation mechanisms in yttria-stabilized cubic zirconia single crystals
(Walter de Gruyter, 2010)
This work attempts to give a unified picture of the microscopic mechanisms which control the plastic deformation in yttria-stabilized cubic zirconia single crystals, particularly for the soft orientation (uniaxial compression ...
Artículo
Microstructural characteristics of TZP/Ni cermets plastically deformed at high temperature
(Elsevier, 2007)
The microstructure of 3 mol% Y2O3-stabilized tetragonal ZrO2/Ni (TZP/Ni) composites has been investigated for nickel concentrations of 20, 30 and 40 vol.% before and after creep tests conducted in argon atmosphere at 1250 ...
Artículo
Anomalous high activation energy for creep in nanostructured 3YTZP/Ni cermets
(Elsevier, 2007)
The plastic behavior of cermets based on a 3 mol% yttria-stabilized tetragonal zirconia matrix that incorporates nanometric nickel inclusions (3YTZP/n-Ni), with 2.5, 5 and 10 vol.% of nickel content, has been studied by ...
Artículo
Thermodynamic study of commensurate-incommensurate phase transitions in Rb2ZnCl4
(American Physical Society, 1999)
We have performed simultaneous measurements of heat capacity and dielectric constant on a high-quality single crystal of Rb2ZnCl4 near the commensurate-incommensurate transition area. Maximum heat capacity is found to be ...
Artículo
Phase coexistence in highly deuterated ferroelectric triglycine selenate: Landau description
(IOP Publishing Ltd., 2006-12-01)
The phase transition in a 90% deuterated sample of TGSe has been investigated by calorimetric and dielectric measurements. As a consequence of the presence of an internal crack in the sample, the transition takes place in ...
Artículo
Evidence of latent heat in Rb2ZnCl4 commensurate-incommensurate phase transition
(IOP Publishing, 2000-03-27)
The commensurate-incommensurate phase of a Rb2ZnCl4 crystal was studied using a conduction calorimeter. By identifying the contribution of specific heat to transition enthalpy it was possible to show, for the first time ...
Artículo
Cellular automata and cluster computing: An application to the simulation of laser dynamics
(World Scientific, 2007)
Firstly, the application of a cellular automata (CA) model to simulate the dynamics of lasers is reviewed. With this kind of model, the macroscopic properties of the laser system emerge as a cooperative phenomenon from ...