Results 111 to 120 of about 18,650 (253)
Sedimentation and Phase Transitions of Colloidal Gibbsite Platelets
Langmuir, 2005 We study the competition between sedimentation, gelation, and liquid crystal formation in suspensions of colloidal gibbsite platelets of five different sizes at three ionic strengths. For large particles (with diameters of 350, 420, and 570 nm) sedimentation is initially the most important factor determining the macroscopic behavior.
Wijnhoven, J.E.G.J. +3 more
openaire +4 more sources
Chemistry of the system: Al2O3(c)minus HCL aqueous [PDF]
In order to study exhaust gas chemistry for the space shuttle, the vapor pressure of 2 to 1 weight mixtures of 3-M hydrochloric acid and Al2O3 was studied over a l80 minute reaction period at 31 C.
Tyree, S. Y., Jr.
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Química Nova, 2009 Anion adsorption/desorption dynamics was studied as individual processes on surface of particles of a gibbsitic clay. The data suggest a remarkable gibbsite role as nitrate leaching retardant in soil.
Adélia A. A. Pozza +8 more
doaj +1 more source
, 2016 Soil Sci. Soc. Am. J. 80:1197–1207 doi:10.2136/sssaj2016.04.0129 Open access. Received 29 Apr. 2016. Accepted 16 Aug. 2016. *Corresponding author (messington@utk.edu). © Soil Science Society of America.
M. Essington, M. Stewart
semanticscholar +1 more source
The Effect of Dissolved Water on the Tribological Properties of Polyalkylene Glycol and Polyolester Oils [PDF]
, 1994 The effect of water dissolved in polyalkylene glycol and polyolester oils on the tribological behavior of two material contact pairs in three test environments is evaluated.
Cusano, C. +2 more
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Chemical composition of the humus layer, mineral soil and soil solution of 150 forest stands in the Netherlands in 1990 [PDF]
A nationwide assessment of the chemical composition of the humus layer, mineral topsoil (0-30 cm) and soil solution in both topsoil and subsoil (60-100 cm) was made for 150 forest stands in the year 1990.
Leeters, E.E.J.M., Vries, W., de
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Effects of Al substitution on goethite formation [PDF]
, 1984 Goethites containing up to 32.7 mole % Al were synthesized and characterized through diffractometry, spectrometry, DSC and chemical techniques. Results indicate that crystal growth was favoured or hindered depending on the percentage of aluminum ...
Deiana, Salvatore Andrea +3 more
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INFLUENCE OF GRAIN AND CRYSTALLITE SIZE ON THE GIBBSITE TO BOEHMITE THERMAL TRANSFORMATION
Studia Universitatis Babes-Bolyai Chemia, 2015 Thermal decomposition processes of three different samples of hydrated alumina: Bayer precipitated size fractioned, Bayer precipitated ground and fine precipitated, were studied.
Viktor Zsolt BARANYAI +2 more
doaj
Stop 2 Kainui silt loam and Naike clay, Gordonton Rd [PDF]
, 2008 At this stop are several remarkable features both stratigraphic and pedological, and a “two-storied” soil, the Kainui silt loam alongside (in just a few places) the Naike clay. Both soils are Ultisols. The sequence of tephra beds and buried soil horizons
Lowe, David J.
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Clay mineralogy of tephras and associated paleosols and soils, and hydrothermal deposits, North Island [New Zealand] [PDF]
, 1993 Tour themes and itinerary The tour centres on the occurrence and genesis of clay minerals, especially allophane, halloysite, and ferrihydrite, associated with both Quaternary rhyolitic airfall tephra (volcanic ash) deposits and volcanogenic alluvium ...
Lowe, David J., Percival, H.J.
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