Search Results - "Couvy, Hélène"

Experimentally determined effects of olivine crystallization and melt titanium content on iron isotopic fractionation in planetary basalts by Prissel, Kelsey B., Krawczynski, Michael J., Nie, Nicole X., Dauphas, Nicolas, Couvy, Hélène, Hu, Michael Y., Alp, E. Ercan, Roskosz, Mathieu

“…Olivine is the most abundant mantle mineral at depths relevant to oceanic crust production through melting. It is also a liquidus phase for a wide range of…”
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Identification of Large Isotope Anomalies in Quartz by Infrared Spectroscopy by Ogliore, Ryan C., Dwyer, Cosette, Krawczynski, Michael J., Couvy, Hélène, Eisele, Max, Filiberto, Justin

“…We report an infrared (IR) spectroscopic technique to detect quartz grains with large isotope anomalies. We synthesized isotopically doped quartz and used…”
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How Does Viscosity Contrast Influence Phase Mixing and Strain Localization? by Cross, Andrew J., Olree, Elizabeth, Couvy, Hélène, Skemer, Philip

“…Ultramylonites—intensely deformed rocks with fine grain sizes and well‐mixed mineral phases—are thought to be a key component of Earth‐like plate tectonics,…”
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Nanohardness and Young’s modulus of nanopolycrystalline diamond by Couvy, Hélène, Lahiri, Debrupa, Chen, Jiuhua, Agarwal, Arvind, Sen, Gautam

“…► Young’s modulus ( E) and hardness ( H N ) of nano-polycrystalline diamond (NPD) synthesized by the direct conversion of graphite under high pressure and…”
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Compressibility of nanocrystalline forsterite by Couvy, Hélène, Chen, Jiuhua, Drozd, Vadym

“…We established an equation of state for nanocrystalline forsterite using multi-anvil press and diamond anvil cell. Comparative high-pressure and…”
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Correction to “Strain-induced seismic anisotropy of wadsleyite polycrystals and flow patterns in the mantle transition zone” by Tommasi, Andréa, Mainprice, David, Cordier, Patrick, Thoraval, Catherine, Couvy, Hélène

“…Correction to 'Strain-induced seismic anisotropy of wadsleyite polycrystals and flow patterns in the mantle transition zone'…”
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Pressure sensitivity of olivine slip systems and seismic anisotropy of Earth's upper mantle by Tommasi, Andréa, Mainprice, David, Cordier, Patrick, Couvy, Hélène, Frost, Daniel J

“…The mineral olivine dominates the composition of the Earth's upper mantle and hence controls its mechanical behaviour and seismic anisotropy. Experiments at…”
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Strain-induced seismic anisotropy of wadsleyite polycrystals and flow patterns in the mantle transition zone by Tommasi, Andréa, Mainprice, David, Cordier, Patrick, Thoraval, Catherine, Couvy, Hélène

“…We use forward models based on recent high‐pressure experimental data on mantle minerals to predict the seismic anisotropy produced by plastic strain of…”
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In situ X-ray study of ammonia borane at high pressures by Chen, Jiuhua, Couvy, Helene, Liu, Haozhe, Drozd, Vadym, Daemen, Luke L., Zhao, Yusheng, Kao, Chi-Chang

“…In situ synchrotron X-ray diffraction experiments of ammonia borane synthesized using sonication assisted direct reaction (sodium borohydride and ammonium…”
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Deformation of diopside single crystal at mantle pressure. 1: Mechanical data by Amiguet, Elodie, Raterron, Paul, Cordier, Patrick, Couvy, Hélène, Chen, Jiuhua

“…Steady-state deformation experiments were carried out in a deformation-DIA (D-DIA) high-pressure apparatus on oriented diopside single crystals, at pressure (…”
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Nanohardness and Young’s modulus of nanopolycrystalline diamond by Couvy, Hélène, Lahiri, Debrupa, Chen, Jiuhua, Agarwal, Arvind, Sen, Gautam

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Strain-induced seismic anisotropy of wadsleyite polycrystals and flow patterns in the mantle transition zone by TOMMASI, Andrea, MAINPRICE, David, CORDIER, Patrick, THORAVAL, Catherine, COUVY, Hélène

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In situ X-ray study of ammonia borane at high pressures by Chen, Jiuhua, Couvy, Helene, Liu, Haozhe, Drozd, Vadym, Daemen, Luke L., Zhao, Yusheng, Kao, Chi-Chang

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An extended high pressure-temperature phase diagram of NaBH4 by George, Lyci, Drozd, Vadym, Couvy, Helene, Chen, Jiuhua, Saxena, Surendra K

“…We have studied the structural stability of NaBH(4) under pressures up to 17 GPa and temperatures up to 673 K in a diamond anvil cell and formed an extended…”
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