Results 31 to 40 of about 13,557 (226)

Coating of Gibbsite Platelets with Silica [PDF]

Chemistry of Materials, 2004
In this work, gibbsite particles are synthesized from aluminum alkoxides in an acidic environment at 85 °C. After centrifugation, coating with silica is investigated following two different methods. Practical aspects and the feasibility to produce significant amounts of material are studied. The first method, analogous to a procedure used for boehmite,
openaire   +3 more sources

Phosphorus and arsenic distributions in a seasonally-stratified, iron- and manganese-rich lake: microbiological and geochemical controls [PDF]

, 2015
Seasonal stratification in temperate lakes greater than a few metres deep provides conditions amenable to pronounced vertical zonation of redox chemistry.
Anderson, Martin S., Hamilton, David P., Hartland, Adam   +2 more
core   +2 more sources

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

Corrosion of aluminium metal in OPC- and CAC-based cement matrices

, 2013
Corrosion of aluminium metal in ordinary Portland cement (OPC) based pastes produces hydrogen gas and expansive reaction products causing problems for the encapsulation of aluminium containing nuclear wastes.
Armstrong, Atkins, Bakolas, Beatriz Carro-Mateo, Claire Utton, Collier, Dorozhkin, Ellis, Fernández-Carrasco, Geraldine Marchand, Glasser, Hajime Kinoshita, Innocentini, Kloprogge, Ma, Matschei, Meher, Milestone, Moon, Neil Milestone, Nick Collier, Paul Swift, Scrivener, Setiadi, Studart, Sugama, Swift, Szetu, Tabrizi, Tabrizi, Zhou, Zhu   +31 more
core   +1 more source

Solid-state NMR characterisation of the thermal transformation of a Hungarian white illite [PDF]

, 2005
1H, 27Al, 29Si and 39K solid-state NMR are reported from a Hungarian illite 2:1 clay for samples heated up 1600 °C. This single-phase sample has a small amount of aluminium substitution in the silica layer and very low iron-content (0.4 wt%).
Ban, Bastow, Brindley, Brindley, Brown, Brown, D.L. Carroll, Deer, Drachman, Drits, Earnest, Engelhardt, Fitzgerald, Fitzgerald, Freude, Grim, Grim, Hayashi, He, Herrero, Jaymes, Jaymes, Kunath-Fandrei, Kunath-Fandrei, Kunwar, Lambert, Lambert, Lausen, M.E. Smith, MacKenzie, Mackenzie, Mackenzie, Massiot, Massiot, McConville, Merwin, Michael, Murad, Rehak, Roch, Rocha, Rocha, Sanchez-Soto, Sanz, Sanz, Schairer, Schroeder, Slade, Smith, Smith, Smith, Smith, T.F. Kemp, T.J. Bastow, Watanabe, Woessner, Worrall   +56 more
core   +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

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

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

Capacidade máxima de adsorção de fósforo relacionada a formas de ferro e alumínio em solos subtropicais Maximum phosphorus adsorption capacity as related to iron and aluminum forms in subtropical soils

Revista Brasileira de Ciência do Solo, 2010
O P é um dos macronutrientes primários essenciais para a produção vegetal. Apesar de ser o menos absorvido pelas plantas, é o mais utilizado nas adubações nos solos das regiões tropicais e subtropicais úmidas.
Cesar Crispim Vilar, Antonio Carlos Saraiva da Costa, Allan Hoepers, Ivan Granemann de Souza Junior   +3 more
doaj   +1 more source