Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick, Durand, Aude
In order to investigate the role of clay minerals in organic matter preservation, the fixation of pure organic compounds on two synthetic low- and high-charge saponites was investigated in laboratory...
Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick, Durand, Aude
In order to investigate the role of clay minerals in organic matter preservation, the fixation of pure organic compounds on two synthetic low- and high-charge saponites was investigated in laboratory...
Gerstmans, André, Urbanczyk, Laetitia, Jérôme, Robert, Robert, Jean-Louis, Grandjean, Jean
Synthetic hectorites and the corresponding surfactant-exchanged clays have been characterized by X-ray diffraction and 1H, 7Li, 13C, 23Na and 29Si solid-state nuclear magnetic resonance (NMR)...
Etude du comportement en fatigue d'éprouvettes en aluminium renforcées par patchs composites (2007)
PASTOR , Marie-Laetitia, Xavier Balandraud, Michel Grédiac, Jean-Louis Robert
Certains composants aéronautiques peuvent voir apparaître des fissures de fatigue en raison des sollicitations survenant en service. Une alternative au remplacement des pièces endommagées est de...
Influence of charge location on 29Si NMR chemical shift of 2:1 phyllosilicates. (2006)
Sanz, Jésus, Robert, Jean-Louis, Diaz, Magali, Sobrados, Isabel
A series of synthetic sodium-rich saponites and trioctahedral Na, K, and Ba mica solid solutions have been investigated by 29Si MAS-NMR spectroscopy. The salient result is the major effect of the...
H.J. Mercier, Patrick, G. Rancourt, Denis, J. Redhammer, Gunther, Lalonde, André E., Robert, Jean-Louis, Berman, Rob G., ...
We have used recently developed quantitative crystal chemical models and a simple structural free-energy model to examine and interpret: (1) previously reported powder X-ray diffraction data for...
Della Ventura, Giancarlo, J. Redhammer, Gunther, Iezzi, Gianluca, C. Hawthorne, Franck, Papin, Arnaud, Robert, Jean-Louis
A series of amphiboles along the magnesioriebeckiteNa2Mg3Fe3+ 2Si8O22(OH)2 ferri-clinoholmquistiteLi2Mg3Fe3+ 2Si8O22(OH)2 - join, defined by the BLiB Na1 exchange vector, were hydrothermally...
Short-range order in minerals: amphiboles. (2005)
C. Hawthorne, Franck, Della Ventura, Giancarlo, Oberti, R., Robert, Jean-Louis, Iezzi, Gianluca
Short-range order involves local clusters of atoms that occur either more or less frequently than predicted by a random distribution. Infrared spectroscopy in the principal (OH)-stretching region is...
Hydration and swelling of synthetic Na-saponites: Inß uence of layer charge. (2005)
J. Michot, Laurent, Bihannic, Isabelle, Pelletier, Manuel, Rinnert, Emmanuel, Robert, Jean-Louis
This paper concerns the hydration and swelling behavior of four synthetic sodium saponite samples with general formula Nax(Si4–x,Alx)(Mg3)O10(OH)2, where x = 0.4, 0.5, 0.6, and 0.7. The...
H.J. Mercier, Patrick, G. Rancourt, Denis, Robert, Jean-Louis, Berman, Rob G., J. Redhammer, Gunther
Based on powder X-ray diffraction (pXRD) measurements of many mica solid solution series of synthetic powder samples (between Mg, Co, Ni, and Fe end-members, with different degrees of oxidation,...
Hydratation properties of the dehydroxylated-rehydroxylated smectites (2005)
Muller, Fabrice, Bény, Jean-Michel, Pons, Charles-Henri, Champallier, Rémi, Lantenois, Sébastien, Robert, Jean-Louis
Na- and Ca-exchanged Wyoming montmorillonites have been dehydroxylated by heating during 1 hour at 750°C and rehydroxylated by hydrothermal treatment (350°C, 100MPa) in a tuttle type pressure...
Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick
Sorption of organic molecules on clay surfaces in aquatic environment influence organic sedimentation fluxes. It is well known that mineral sorption affects transport of natural organic matter to...
Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick
Sorption of organic molecules on clay surfaces in aquatic environment influence organic sedimentation fluxes. It is well known that mineral sorption affects transport of natural organic matter to...
Hydratation properties of the dehydroxylated-rehydroxylated smectites (2005)
Muller, Fabrice, Bény, Jean-Michel, Pons, Charles-Henri, Champallier, Rémi, Lantenois, Sébastien, Robert, Jean-Louis
Na- and Ca-exchanged Wyoming montmorillonites have been dehydroxylated by heating during 1 hour at 750°C and rehydroxylated by hydrothermal treatment (350°C, 100MPa) in a tuttle type pressure...
Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick
Sorption of organic molecules on clay surfaces in aquatic environment influence organic sedimentation fluxes. It is well known that mineral sorption affects transport of natural organic matter to...
Hydratation properties of the dehydroxylated-rehydroxylated smectites (2005)
Muller, Fabrice, Bény, Jean-Michel, Pons, Charles-Henri, Champallier, Rémi, Lantenois, Sébastien, Robert, Jean-Louis
Na- and Ca-exchanged Wyoming montmorillonites have been dehydroxylated by heating during 1 hour at 750°C and rehydroxylated by hydrothermal treatment (350°C, 100MPa) in a tuttle type pressure...
Drouin, Sylvain, Boussafir, Mohammed, Robert, Jean-Louis, Albéric, Patrick
Sorption of organic molecules on clay surfaces in aquatic environment influence organic sedimentation fluxes. It is well known that mineral sorption affects transport of natural organic matter to...
Hydratation properties of the dehydroxylated-rehydroxylated smectites (2005)
Muller, Fabrice, Bény, Jean-Michel, Pons, Charles-Henri, Champallier, Rémi, Lantenois, Sébastien, Robert, Jean-Louis
Na- and Ca-exchanged Wyoming montmorillonites have been dehydroxylated by heating during 1 hour at 750°C and rehydroxylated by hydrothermal treatment (350°C, 100MPa) in a tuttle type pressure...
Solid-state NMR study of intercalated species in poly(e-caprolactone)/clay. (2004)
Hrobarikova, J., Robert, Jean-Louis, Calberg, C., Jerome, R., Grandjean, J.
The structure and dynamics of surfactant and polymer chains in intercalated poly(-caprolactone)/clay nanocomposites are characterized by 31P magic-angle spinning (MAS) and 13C cross-polarization MAS...
Solid-state NMR study of intercalated species in poly(e-caprolactone)/clay. (2004)
Hrobarikova, J., Robert, Jean-Louis, Calberg, C., Jerome, R., Grandjean, J.
The structure and dynamics of surfactant and polymer chains in intercalated poly(-caprolactone)/clay nanocomposites are characterized by 31P magic-angle spinning (MAS) and 13C cross-polarization MAS...
Solid-state NMR study of intercalated species in poly(e-caprolactone)/clay. (2004)
Hrobarikova, J., Robert, Jean-Louis, Calberg, C., Jerome, R., Grandjean, J.
The structure and dynamics of surfactant and polymer chains in intercalated poly(-caprolactone)/clay nanocomposites are characterized by 31P magic-angle spinning (MAS) and 13C cross-polarization MAS...
Distribution of Si and Al in Clintonites: A combined NMR and Monte Carlo Study. (2003)
Sanz, Jésus, Herrero, C.P., Robert, Jean-Louis
The distribution of silicon and aluminum atoms over the tetrahedral sheets of clintonites (aluminum-rich phyllosilicates 2:1) has been studied by 29Si and 27Al magic-angle-spinning NMR...
Synthesis and infrared spectroscopy of amphiboles along the tremolite-pargasite join. (2003)
Della Ventura, Giancarlo, C. Hawthorne, Franck, Robert, Jean-Louis, Iezzi, Gianluca
Amphiboles along the tremolite-pargasite join have been hydrothermally synthesized at 900°C, 3 kbar. Run products were characterized by optical and electron microscopy, powder X-ray diffraction and...
Synthesis and characterisation of ferri-ferroholmquistite, oLi2(Fe2+3Fe3+2)Si8O22(OH)2 (2003)
Iezzi, Gianluca, Della Ventura, Giancarlo, Pedrazzi, G., Robert, Jean-Louis, Oberti, R.
This work reports the synthesis and crystal-chemistry of ferri-clinoferroholmquistite in the system Li2O - FeO - Fe2O3 - SiO2 - H2O. Ferri-clinoferroholmquistite has a very restricted temperature...
Delevoye, L., Robert, Jean-Louis, Grandjean, J.
29Si, 27Al MAS NMR is used to characterize Laponite RD and synthetic saponites of variable interlayer charge. The Si/Al ratios are in good agreement with the calculated charge from chemical analysis...
Iezzi, Gianluca, Della Ventura, Giancarlo, Camara, Fernando, Pedrazzi, Giuseppe, Robert, Jean-Louis
Amphiboles were hydrothermally synthesized at 500 ∞C and 4 kbar in the system Li2O-Na2OFeO- Fe2O3-SiO2-H2O, with nominal compositions along the riebeckite [■Na2Fe3 2+ Fe2...
Iezzi, Gianluca, Della Ventura, Giancarlo, Camara, Fernando, Pedrazzi, Giuseppe, Robert, Jean-Louis
Amphiboles were hydrothermally synthesized at 500 ∞C and 4 kbar in the system Li2O-Na2OFeO- Fe2O3-SiO2-H2O, with nominal compositions along the riebeckite [■Na2Fe3 2+ Fe2...
Iezzi, Gianluca, Della Ventura, Giancarlo, Camara, Fernando, Pedrazzi, Giuseppe, Robert, Jean-Louis
Amphiboles were hydrothermally synthesized at 500 ∞C and 4 kbar in the system Li2O-Na2OFeO- Fe2O3-SiO2-H2O, with nominal compositions along the riebeckite [■Na2Fe3 2+ Fe2...
Iezzi, Gianluca, Della Ventura, Giancarlo, Camara, Fernando, Pedrazzi, Giuseppe, Robert, Jean-Louis
Amphiboles were hydrothermally synthesized at 500 ∞C and 4 kbar in the system Li2O-Na2OFeO- Fe2O3-SiO2-H2O, with nominal compositions along the riebeckite [■Na2Fe3 2+ Fe2...
Delevoye, Laurent, Robert, Jean-Louis, Grandjean, Jean
Fonds de la Recherche Scientifique (Communauté française de Belgique) - FNRS
C. Hawthorne, Franck, Welch, Mark D., Della Ventura, Giancarlo, Liu, Shuangxi, Robert, Jean-Louis, Jenkins, David M.
Fourier-transform infrared spectra (FTIR) were recorded on a series of synthetic amphiboles along the join Ca1.8Mg5.2Si8O22(OH)2Ca1.8(Mg4.2Al)(Si7Al)O22(OH)2. The spectra were fitted by up to six...
Experimental study of Cr incorporation in pargasite (2000)
Fialips-Guédon, Claire-Isabelle, Robert, Jean-Louis, Delbove, François
Pargasite compositions corresponding to the nominal structural formula NaCa2 (Mg4Al1-xCrx)(Si6Al2)O22(OH)2, with 0 £ x £ 1, were investigated at 900 °C and 3 and 20 kbar PH2O. The aims of this...
The OH-F substitution in synthetic pargasite at 1.5 kbar, 850 °C. (2000)
Robert, Jean-Louis, Della Ventura, Giancarlo, Welch, Mark D., C. Hawthorne, Franck
Amphiboles were synthesized at 1.5 kbar PH2O and 850 °C along the join pargasite-fluoropargasite. Structural variations in the amphibole as a function of F have been characterized by a combination...
The OH-F substitution in synthetic pargasite at 1.5 kbar, 850 °C. (2000)
Robert, Jean-Louis, Della Ventura, Giancarlo, Welch, Mark D., C. Hawthorne, Franck
Amphiboles were synthesized at 1.5 kbar PH2O and 850 °C along the join pargasite-fluoropargasite. Structural variations in the amphibole as a function of F have been characterized by a combination...
C. Hawthorne, Franck, Welch, Mark D., Della Ventura, Giancarlo, Liu, Shuangxi, Robert, Jean-Louis, Jenkins, David M.
Fourier-transform infrared spectra (FTIR) were recorded on a series of synthetic amphiboles along the join Ca1.8Mg5.2Si8O22(OH)2Ca1.8(Mg4.2Al)(Si7Al)O22(OH)2. The spectra were fitted by up to six...
Experimental study of Cr incorporation in pargasite (2000)
Fialips-Guédon, Claire-Isabelle, Robert, Jean-Louis, Delbove, François
Pargasite compositions corresponding to the nominal structural formula NaCa2 (Mg4Al1-xCrx)(Si6Al2)O22(OH)2, with 0 £ x £ 1, were investigated at 900 °C and 3 and 20 kbar PH2O. The aims of this...
The OH-F substitution in synthetic pargasite at 1.5 kbar, 850 °C. (2000)
Robert, Jean-Louis, Della Ventura, Giancarlo, Welch, Mark D., C. Hawthorne, Franck
Amphiboles were synthesized at 1.5 kbar PH2O and 850 °C along the join pargasite-fluoropargasite. Structural variations in the amphibole as a function of F have been characterized by a combination...
Hawthorne, Franck C., Welch, Mark D., Della Ventura, Giancarlo, Liu, Shuangxi, Robert, Jean-Louis, Jenkins, David M.
Fourier-transform infrared spectra (FTIR) were recorded on a series of synthetic amphiboles along the join Ca1.8Mg5.2Si8O22(OH)2Ca1.8(Mg4.2Al)(Si7Al)O22(OH)2. The spectra were fitted by up to six...
Experimental study of Cr incorporation in pargasite (2000)
Fialips-Guédon, Claire-Isabelle, Robert, Jean-Louis, Delbove, François
Pargasite compositions corresponding to the nominal structural formula NaCa2 (Mg4Al1-xCrx)(Si6Al2)O22(OH)2, with 0 £ x £ 1, were investigated at 900 °C and 3 and 20 kbar PH2O. The aims of this...
Hawthorne, Franck C., Welch, Mark D., Della Ventura, Giancarlo, Liu, Shuangxi, Robert, Jean-Louis, Jenkins, David M.
Fourier-transform infrared spectra (FTIR) were recorded on a series of synthetic amphiboles along the join Ca1.8Mg5.2Si8O22(OH)2Ca1.8(Mg4.2Al)(Si7Al)O22(OH)2. The spectra were fitted by up to six...
The OH-F substitution in synthetic pargasite at 1.5 kbar, 850 °C. (2000)
Robert, Jean-Louis, Della Ventura, Giancarlo, Welch, Mark D., C. Hawthorne, Franck
Amphiboles were synthesized at 1.5 kbar PH2O and 850 °C along the join pargasite-fluoropargasite. Structural variations in the amphibole as a function of F have been characterized by a combination...
Experimental study of Cr incorporation in pargasite (2000)
Fialips-Guédon, Claire-Isabelle, Robert, Jean-Louis, Delbove, François
Pargasite compositions corresponding to the nominal structural formula NaCa2 (Mg4Al1-xCrx)(Si6Al2)O22(OH)2, with 0 £ x £ 1, were investigated at 900 °C and 3 and 20 kbar PH2O. The aims of this...
Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles. (1999)
Robert, Jean-Louis, Della Ventura, Giancarlo, C. Hawthorne, Franck
Amphiboles were synthesized along the joins tremolitefluorotremolite, richteritefluororichterite and potassic-richteritepotassic-fluororichterite at 750 8C and 1 kbar P(H2O). Infrared spectra...
Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles. (1999)
Robert, Jean-Louis, Della Ventura, Giancarlo, C. Hawthorne, Franck
Amphiboles were synthesized along the joins tremolitefluorotremolite, richteritefluororichterite and potassic-richteritepotassic-fluororichterite at 750 8C and 1 kbar P(H2O). Infrared spectra...
Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles. (1999)
Robert, Jean-Louis, Della Ventura, Giancarlo, C. Hawthorne, Franck
Amphiboles were synthesized along the joins tremolitefluorotremolite, richteritefluororichterite and potassic-richteritepotassic-fluororichterite at 750 8C and 1 kbar P(H2O). Infrared spectra...
Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles. (1999)
Robert, Jean-Louis, Della Ventura, Giancarlo, C. Hawthorne, Franck
Amphiboles were synthesized along the joins tremolitefluorotremolite, richteritefluororichterite and potassic-richteritepotassic-fluororichterite at 750 8C and 1 kbar P(H2O). Infrared spectra...
Della Ventura, Giancarlo, Robert, Jean-Louis, Raudsepp, Mati, C. Hawthorne, Franck, Welch, Mark D.
Amphiboles were synthesized at 750 8C, 1 kbar (H2O) on the binary joins (nickel, magnesium)-richterite and (magnesium, cobalt)-richterite. Structural variations and site occupancies were...
Della Ventura, Giancarlo, Robert, Jean-Louis, Raudsepp, Mati, C. Hawthorne, Franck, Welch, Mark D.
Amphiboles were synthesized at 750 8C, 1 kbar (H2O) on the binary joins (nickel, magnesium)-richterite and (magnesium, cobalt)-richterite. Structural variations and site occupancies were...
Della Ventura, Giancarlo, Robert, Jean-Louis, Raudsepp, Mati, C. Hawthorne, Franck, Welch, Mark D.
Amphiboles were synthesized at 750 8C, 1 kbar (H2O) on the binary joins (nickel, magnesium)-richterite and (magnesium, cobalt)-richterite. Structural variations and site occupancies were...
Della Ventura, Giancarlo, Robert, Jean-Louis, Raudsepp, Mati, C. Hawthorne, Franck, Welch, Mark D.
Amphiboles were synthesized at 750 8C, 1 kbar (H2O) on the binary joins (nickel, magnesium)-richterite and (magnesium, cobalt)-richterite. Structural variations and site occupancies were...
Thesis (doctoral)--Université de Paris I, 1989.
Beiträge zur Biosynthese von Cytochalasin B (Phomin) / (1977)
Thesis (doctoral)--Universität Basel, 1977.
Thesis (doctoral)--Université de Montpellier, 1969.
Géologie de la région du lac Kipawa, comté de Témiscamingue [microforme] / (1963)
Thèse (de doctorat) - Université Laval, 1963.
Géologie de la région du lac Kipawa, comté de Témiscamingue / (1963)
Thèse (de doctorat) - Université Laval, 1963.
Géologie de la région du lac Kipawa, comté de Témiscamingue [microforme] / (1963)
Thèse (de doctorat) - Université Laval, 1963.