Results 21 to 30 of about 1,254 (182)

Investigation the Effects of Boehmite and Gibbsite on the Electrochemical Behaviours of Gel-VRLA Batteries

International Journal of Electrochemical Science, 2018
In this work, gibbsite and boehmite were used as additives of gel valve regulated lead acid battery for the first time in the literature. Optimum amounts of additives were determined as 0.6wt% for each species by using of cyclic voltammetric and ...
Metin GENÇTEN
doaj   +1 more source

Effect of Dry Grinding on Gibbsite [PDF]

Bulletin of the Chemical Society of Japan, 1959
Abstract The effect of dry grinding on gibbsite was examined by X-ray diffraction, X-ray small angle diffraction and differential thermal analysis. It has been found that there are two sorts of structural change in the process of dry grinding. One, which occurs early in this process, is the slip of layers.
Goro Yamaguchi, Kenichi Sakamoto
openaire   +1 more source

Hillslope curvature, clay mineralogy, and phosphorus adsorption in an Alfisol cultivated with sugarcane Curvaturas de relevo, mineralogia da argila e adsorção de fósforo em Argissolo cultivado com cana-de-açúcar

Scientia Agricola, 2009
Hillslope curvatures are associated with specific environments that correlate to chemical and mineralogical attributes of soil, so determining specific management zones.
Diogo Mazza Barbieri, José Marques Júnior, Luis Reynaldo Ferracciú Alleoni, Fernando José Garbuio, Livia Arantes Camargo   +4 more
doaj   +1 more source

The bauxite-bearing lateritic profile of the Jequié Complex, São Francisco Craton, Brazil: potential for rare earth elements mineralization and insights on the mineral system

Journal of the Geological Survey of Brazil, 2023
The Jequié Block is located at the northeastern portion of the São Francisco Craton and represents the Archean tectonic paleoplate that hosts the Jequié Complex.
Daniel Augusto de Miranda, Caroline Couto Santos, Fabrício Pereira dos Santos, Anderson Roque Araújo dos Santos Meneses, Carlos Magno Santos Clemente, Rita Oliveira, Isabel Leonor Iza Echeverria Herrera   +6 more
doaj   +1 more source

Mineralogy of the clay fraction of Alfisols in two slope curvatures: III - spatial variability

Revista Brasileira de Ciência do Solo, 2013
A good knowledge of the spatial distribution of clay minerals in the landscape facilitates the understanding of the influence of relief on the content and crystallographic attributes of soil minerals such as goethite, hematite, kaolinite and gibbsite ...
Livia Arantes Camargo, José Marques Júnior, Gener Tadeu Pereira   +2 more
doaj   +1 more source

Thermal Degradation and Thermal Decomposition of Plasticized PVC Including POSS Additives for PVC Compounds: Mechanisms, Impact, and Performance of Standards

Journal of Vinyl and Additive Technology, EarlyView.
Additives' structures. ABSTRACT Poly(vinyl chloride) has been a key polymeric material since its commercial production in 1931, demonstrating versatility across numerous industries due to its compatibility with various additives. PVC's inherent properties, flame retardance, durability, and recyclability make it ideal for building and construction ...
Stefano Gardi, Gianluca Sarti, Luca Palin, Enrico Boccaleri, Alberto Frache   +4 more
wiley   +1 more source

Surface area, crystal morphology and characterization of transition alumina powders from a new gibbsite precursor

Materials Research, 2007
A new procedure was used to prepare a microcrystalline powder constituted by thin euhedral hexagonal gibbsite plates, 0.2 to 0.6 µm in diameter and 32 nm thick. The powder, fired between 200 and 1000 °C, produced chi and kappa transition aluminas.
Antonio Carlos Vieira Coelho, Helena de Souza Santos, Pedro Kuniiko Kiyohara, Kelly Nanci Pinto Marcos, Pérsio de Souza Santos   +4 more
doaj   +1 more source

Water Cationic Composition on Potassium Displacement in Tropical Soils

CLEAN – Soil, Air, Water, Volume 54, Issue 6, June 2026.
ABSTRACT This study aimed to evaluate the interplay between water hardness, sodium adsorption ratio (SAR), and electrical conductivity (EC); with tropical soil physical, chemical, and mineralogical characteristics on the displacement K+. The water quality treatments represented solutions suitable and not suitable for irrigation, with varying levels of ...
Miguel Angel Corea Alvarez, Michael Silveira Thebaldi, Marina Neves Merlo, Daniela Conceição de Jesus, Jaqueline dos Santos Soares, Elvis Márcio de Castro Lima, Adriano Valentim Diotto, Luiz Antonio Lima, Luiz Fernando Coutinho de Oliveira   +8 more
wiley   +1 more source

Efficient Adsorbent-Desiccant Based on Aluminium Oxide

Applied Sciences, 2021
The review describes the main methods of obtaining hydroxides and aluminium oxides (AO) of various structures from gibbsite. The promising techniques of obtaining AO adsorbents are discussed, namely the technique of thermal activation in the mode of ...
Eugene P. Meshcheryakov, Sergey I. Reshetnikov, Mariya P. Sandu, Alexey S. Knyazev, Irina A. Kurzina   +4 more
doaj   +1 more source

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source