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Intercalation of kaolinite under hydrothermal conditions

Autor: M Y A Mollah, David L. Cocke, G. R. Reddy, H. V. Lauer, R. K. Vempati

Publikováno v: Journal of Materials Science. 31:1255-1259

Intercalation of kaolinite with dimethylsulphoxide (DMSO) was carried out under hydrothermal conditions using a Parr bomb. The intercalated complex has been characterized by X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR) and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63f6d9b54fe508065219a0979bb738a4
https://doi.org/10.1007/bf00353104

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Fractionation and characterization of Texas lignite class ‘F’ fly ash by XRD, TGA, FTIR, and SFM

Autor: R. K. Vempati, Ajoy Rao, David L. Cocke, Thomas R. Hess, H. V. Lauer

Publikováno v: Cement and Concrete Research. 24:1153-1164

Fly ash is a complicated heterogeneous material and utilization of it requires a detailed knowledge of the physical and chemical characteristics. In the present study Texas lignite class ‘F’ ash was examined by X-ray diffractometer (XRD), thermog

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66fd6bf5f7831d300d699e6f4257115f
https://doi.org/10.1016/0008-8846(94)90039-6

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Microscopic Iron Metal on Glass and Minerals—A Tool for Studying Regolith Maturity

Autor: Richard V. Morris, H. V. Lauer, Carlton C. Allen, David S. McKay

Publikováno v: Icarus. 104:291-300

A novel method of producing mixtures of glass or minerals with iron metal is presented. A portion of the Fe(2+) in basaltic glass and minerals can be reduced to metal in a few hours at 1100 C and an oxygen fugacity well below the iron-wustite buffer.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8d2de054b23e1f7c58c80cfb58dcd6c
https://doi.org/10.1006/icar.1993.1102

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Mars 2007 Phoenix Scout mission Organic Free Blank: Method to distinguish Mars organics from terrestrial organics

Autor: Raymond E. Arvidson, R. L. Stewart, M. Gross, L. K. Tamppari, D. W. Ming, Brad Sutter, C. Shinohara, Richard V. Morris, William V. Boynton, H. V. Lauer, D. C. Golden, R. Woida, Peter H. Smith

Publikováno v: Journal of Geophysical Research. 113

[1] The Organic Free Blank (OFB) for the Mars 2007 Phoenix Scout mission provides an organic carbon null sample to compare against possible Martian organic signatures obtained by the Thermal and Evolved Gas Analyzer (TEGA). Major OFB requirements are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e306c3eb3f13414414abf4883ef7f48e
https://doi.org/10.1029/2007je003061

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Reflectivity and other physicochemical properties of Mn-substituted goethites and hematites

Autor: R. V. Morris, R. K. Vempati, H. V. Lauer, Philip A. Helmke

Publikováno v: Journal of Geophysical Research. 100:3285

Goethite-bearing samples with values of Mn(s) (Mn/(Mn+Fe) mole fraction) up to 0.206 were synthesized by precipitation from alkaline solution. Samples with Mn(s) less than or equal 0.061 were single-phase Mn-goethites: samples with higher Mn(s) value

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fa9fb20875ceab6d77a77683c21d132
https://doi.org/10.1029/94je02195

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Role of the 4f55d band in the radiationless 5D1→5D0 coupling in BaCl2:Sm2+ and BaBr2:Sm2+

Autor: F. K. Fong, H. V. Lauer

Publikováno v: The Journal of Chemical Physics. 65:3108-3117

In this paper, the adiabatic relaxation theory is applied to investigate the origin of rare‐earth fluorescence quenching involving multiphonon transitions. The energy level schemes for BaCl2:Sm2+ and BaBr2:Sm2+ have been obtained from the observed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb3fa0efc5656a2b7ef4e9608163d29e
https://doi.org/10.1063/1.433524

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Laser optical double resonance and efficient infrared quantum counter upconversion in LaCl3 : Pr3+ and LaF3 : Pr3+

Autor: J. C. Wright, D. J. Zalucha, Francis K. Fong, D. E. Cox, H. V. Lauer

Publikováno v: Journal of Applied Physics. 44:781-786

In this paper, we report the first laser‐excited optical double‐resonance experiments in rare‐earth‐doped crystals. Infrared upconversion in LaCl3 : Pr3+ and LaF3 : Pr3+ has been achieved by means of a tunable cw dye laser pump. The quantum e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd76e4ae6268317fc3fb3d09cf499942
https://doi.org/10.1063/1.1662260

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Periodical

Microscopic Iron Metal on Glass and MineralsA Tool for Studying Regolith Maturity

Autor: Allen, C. C., Morris, R. V., Jr., H. V. Lauer, McKay, D. S.

Publikováno v: Icarus; August 1993, Vol. 104 Issue: 2 p291-300, 10p

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Use of Europium as a Probe in the Study of the Fe2+-Fe3+ Redox Equilibrium

Autor: H. D. Schreiber, H. V. Lauer

Publikováno v: The Rare Earths in Modern Science and Technology ISBN: 9781461340089
The Rare Earths in Modern Science and Technology

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de8dfa1ed4de8dd31d2362d91d7c3d91
https://doi.org/10.1007/978-1-4613-4006-5_38

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The Apennine Front Core 15007/8: Irradiational and depositional history

Autor: Donald D. Bogard, H. V. Lauer, Richard V. Morris, P. Johnson

Publikováno v: Journal of Geophysical Research. 87:A221

The Apennine Front core 15007/8 was subjected to ferromagnetic resonance (FMR), magnetic and noble gas measurements. Ferromagnetic resonance intensity I(s)/FeO surface exposure (maturity) index values and FeO concentrations are reported for 0.5 cm de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3dcb8ed5d4b21b2bb1a31b1fc3955a7f
https://doi.org/10.1029/jb087is01p0a221

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