The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform
Jürgen Rödel - One of the best experts on this subject based on the ideXlab platform.
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Experimental Determination of sintering stresses and sintering viscosities
Acta Materialia, 2003Co-Authors: Emil Aulbach, Jürgen RödelAbstract:A loading dilatometer assisted by two high-resolution lasers was applied for the accurate measurement of radial and axial strains during uniaxial load assisted sintering. An improved hot forging technique was employed for the first time for the Experimental Determination of sintering stress and sintering viscosity by hot forging samples under various loads which were pre-sintered to different densities. The technique of discontinuous hot forging was discussed in detail and the effect of the developing anisotropy and different grain growth were analysed. The sintering stress and uniaxial viscosity were both obtained as functions of density ranging from 65 to 96% and compared with theoretical models. Alumina powder with a grain size of about 150 nm was used in this study.
Emil Aulbach - One of the best experts on this subject based on the ideXlab platform.
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Experimental Determination of sintering stresses and sintering viscosities
Acta Materialia, 2003Co-Authors: Emil Aulbach, Jürgen RödelAbstract:A loading dilatometer assisted by two high-resolution lasers was applied for the accurate measurement of radial and axial strains during uniaxial load assisted sintering. An improved hot forging technique was employed for the first time for the Experimental Determination of sintering stress and sintering viscosity by hot forging samples under various loads which were pre-sintered to different densities. The technique of discontinuous hot forging was discussed in detail and the effect of the developing anisotropy and different grain growth were analysed. The sintering stress and uniaxial viscosity were both obtained as functions of density ranging from 65 to 96% and compared with theoretical models. Alumina powder with a grain size of about 150 nm was used in this study.
Jörg Schwedes - One of the best experts on this subject based on the ideXlab platform.
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Experimental Determination of the Response Envelope of fine limestone
Particle & Particle Systems Characterization, 1996Co-Authors: Hermann J. Feise, Jörg SchwedesAbstract:Designing modern devices for bulk solids storage and handling requires an increasingly complex understanding of the handled bulk solids' mechanical behaviour. Models able to describe the behaviour of bulk solids can neither be formulated nor their parameters determined from common shear tests, since these do not contain sufficient information especially about the materials' stiffness characteristics. The paper describes the response envelope as a measure of the deformation resistance and its Experimental Determination from biaxial tests. It is shown that for fine limestone powder the stiffness in compression is only about 1/70 of the stiffness in expansion. The shape of the response envelope depends only on the ratio between the principal stresses at the stress state considered, whereas the size of the response envelope also depends on the stress magnitude.
A. Chen - One of the best experts on this subject based on the ideXlab platform.
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Experimental Determination of the binodal temperature in the lead borate system
Journal of Materials Science, 1993Co-Authors: J. Podlesny, Michael C. Weinberg, G. F. Neilson, A. ChenAbstract:An Experimental Determination of the phase boundary in the region of immiscibility of the PbO-B2O3 system is reported. Measurements were made by visual observations of both the clearing and clouding temperatures for a series of isothermal heatings. The results are compared with those obtained in previous studies.
Yogendra M. Gupta - One of the best experts on this subject based on the ideXlab platform.
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Experimental Determination of third-order elastic constants of diamond.
Physical review letters, 2011Co-Authors: John Lang, Yogendra M. GuptaAbstract:To determine the nonlinear elastic response of diamond, single crystals were shock compressed along the [100], [110], and [111] orientations to 120 GPa peak elastic stresses. Particle velocity histories and elastic wave velocities were measured by using laser interferometry. The measured elastic wave profiles were used, in combination with published acoustic measurements, to determine the complete set of third-order elastic constants. These constants represent the first Experimental Determination, and several differ significantly from those calculated by using theoretical models.
