Search Results - "Raterron, Paul"

Polycrystalline olivine rheology in dislocation creep: Revisiting experimental data to 8.1GPa by Bollinger, Caroline, Raterron, Paul, Cordier, Patrick, Merkel, Sébastien

“…•Activation enthalpy for olivine polycrystals rheology increases linearly with P.•For olivine polycrystals up to 8.1GPa, V∗=12.8+/− 5cm3mol−1.•Deformation data…”
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Constitutive Law and Flow Mechanism in Diamond Deformation by Yu, Xiaohui, Raterron, Paul, Zhang, Jianzhong, Lin, Zhijun, Wang, Liping, Zhao, Yusheng

“…Constitutive laws and crystal plasticity in diamond deformation have been the subjects of substantial interest since synthetic diamond was made in 1950's. To…”
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Experimental deformation of olivine single crystals at mantle pressures and temperatures by Raterron, Paul, Amiguet, Elodie, Chen, Jiuhua, Li, Li, Cordier, Patrick

“…Deformation experiments were carried out in a deformation-DIA high-pressure apparatus (D-DIA) on oriented San Carlos olivine single crystals, at pressure ( P)…”
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Pressure Dependence of Magnesite Creep by Millard, Joseph W., Holyoke, Caleb W., Wells, Rachel K., Blasko, Cole, Kronenberg, Andreas K., Raterron, Paul, Braccia, Casey, Jackson, Nicholas, McDaniel, Caleb A., Tokle, Leif

“…We determined the activation volumes (V*) for polycrystalline magnesite with grain sizes of 2 and 80 µm deforming by low temperature plasticity (LTP)…”
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Low-temperature olivine rheology at high pressure by Raterron, Paul, Wu, Yujun, Weidner, Donald J, Chen, Jiuhua

“…San-Carlos olivine rheology was investigated at pressure ( P) up to 9 GPa and temperature ( T) lower than 890 °C. Six powder specimens were cold compressed and…”
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A process for low-temperature olivine-spinel transition under quasi-hydrostatic stress by Raterron, Paul, Chen, Jiuhua, Weidner, Donald J.

“…The behavior of fayalite—the Fe2SiO4 olivine end‐member (Fa100)—has been monitored during high‐pressure and low‐temperature experiments using in‐situ x‐ray…”
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The Effect of Pressure and Mg‐Content on Ilmenite Rheology: Implications for Lunar Cumulate Mantle Overturn by Tokle, Leif, Hirth, Greg, Liang, Yan, Raterron, Paul, Dygert, Nick

“…The viscosity of ilmenite is an important parameter that is thought to have influenced the thermal and chemical evolution of the lunar cumulate mantle. We…”
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Strength of orthoenstatite single crystals at mantle pressure and temperature and comparison with olivine by Raterron, Paul, Fraysse, Guillaume, Girard, Jennifer, Holyoke, Caleb W.

“…Oriented single crystals of orthopyroxenes (OPx) were deformed in axisymmetric compression in the D-DIA at pressure and temperature in excess of 3 GPa and 1040…”
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Deformation of forsterite polycrystals at mantle pressure: Comparison with Fe-bearing olivine and the effect of iron on its plasticity by Bollinger, Caroline, Merkel, Sébastien, Cordier, Patrick, Raterron, Paul

“…•Activation enthalpy for forsterite polycrystals rheology increases linearly with P.•For forsterite polycrystals at 1473K and up to 8.1GPa,…”
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Strength of orthoenstatite single crystals at mantle pressure and temperature and comparison with olivine by Raterron, Paul, Fraysse, Guillaume, Girard, Jennifer, Holyoke, III, Caleb W.

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Pressure effect on forsterite dislocation slip systems: Implications for upper-mantle LPO and low viscosity zone by Raterron, Paul, Chen, Jiuhua, Geenen, Thomas, Girard, Jennifer

“…► Olivine deforms by dislocation creep in the top 200 km of the upper mantle. ► We quantify the effect of pressure on olivine [1 0 0] and [0 0 1] dislocation…”
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Hydrolytic weakening of olivine at mantle pressure: Evidence of [100](010) slip system softening from single-crystal deformation experiments by Girard, Jennifer, Chen, Jiuhua, Raterron, Paul, Holyoke, Caleb W.

“…► We report experimental results on the effect of water on the [100] slip of olivine. ► The weakening factor (σdry/σwet at same strain rate) ranges from 1.3 to…”
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Activities of olivine slip systems in the upper mantle by Raterron, Paul, Girard, Jennifer, Chen, Jiuhua

“…► Upper mantle thermal convection depends on olivine plasticity at high pressure. ► We investigate experimentally the effect of pressure on dry olivine crystal…”
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Deformation of forsterite polycrystals at mantle pressure: Comparison with Fe-bearing olivine and the effect of iron on its plasticity by Bollinger, Caroline, Merkel, Sébastien, Cordier, Patrick, Raterron, Paul

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Polycrystalline olivine rheology in dislocation creep: Revisiting experimental data to 8.1 GPa by Bollinger, Caroline, Raterron, Paul, Cordier, Patrick, Merkel, Sebastien

“…The rheology of polycristalline San Carlos olivine is investigated on synchrotron beamline in the Deformation-DIA (D-DIA) at pressure (P) between 3.8 and 8.1…”
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Textures in deforming forsterite aggregates up to 8 GPa and 1673 K by Bollinger, Caroline, Raterron, Paul, Castelnau, Olivier, Detrez, Fabrice, Merkel, Sébastien

“…We report results from axisymmetric deformation experiments carried out on forsterite aggregates in the deformation-DIA apparatus, at upper mantle pressures…”
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In situ quantitative analysis of stress and texture development in forsterite aggregates deformed at 6 GPa and 1373 K by Bollinger, Caroline, Merkel, Sébastien, Raterron, Paul

“…The investigation of materials plastic properties at high pressure is a fast‐growing field, owing to the coupling of high‐pressure deformation apparatuses with…”
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Stress Balance in Synthetic Serpentinized Peridotites Deformed at Subduction Zone Pressures by Hilairet, N., Guignard, J., Ferrand, T. P., Merkel, S., Raterron, P., Ildefonse, B., Fadel, A., Crichton, W.

“…Weak serpentine minerals affect the mechanical behavior of serpentinized peridotites at depth, and may play a significant role in deformation localization…”
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Multiscale modeling of upper mantle plasticity: From single-crystal rheology to multiphase aggregate deformation by Raterron, Paul, Detrez, Fabrice, Castelnau, Olivier, Bollinger, Caroline, Cordier, Patrick, Merkel, Sébastien

“…•We model the plasticity of olivine+diopside aggregates as analogue of peridotite.•The mean-field SO model accounts for an isotropic ‘diffusion-related’…”
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In situ rheological measurements at extreme pressure and temperature using synchrotron X-ray diffraction and radiography by Raterron, Paul, Merkel, Sébastien

“…Dramatic technical progress seen over the past decade now allows the plastic properties of materials to be investigated under extreme pressure and temperature…”
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