Results 191 to 200 of about 8,471 (229)

Structure of prismatic halloysite

American Mineralogist, 2013
The crystal structure of halloysite, despite being one of the most commonly occurring clay minerals on the Earth’s surface, remains elusive. This paper reports on a multi-methodological study to shed more light on the atomic arrangement of halloysite from Olkhon Island, Lake Baikal, Russia, which has a prismatic morphology.
T. Kogure, K. Mori, V. A. Drits, Y. Takai   +3 more
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Nanocomposites of halloysite and polylactide

Applied Clay Science, 2013
Abstract Naturally occurred halloysite (Hal) nanotubes compounded with polylactide (PLA) via melt mixing formed biodegradable and biocompatible clay polymer nanocomposites (CPN). The hydrogen bonding interactions between Hal and PLA were confirmed by Fourier transform infrared spectroscopy (FTIR).
Mingxian Liu, Yun Zhang, Changren Zhou
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Halloysite behaving badly: geomechanics and slope behaviour of halloysite-rich soils

Clay Minerals, 2016
AbstractHalloysite-rich soils derived fromin situweathering of volcanic materials support steep stable slopes, but commonly fail under triggers of earthquakes or rainfall. Resulting landslides are slideflow processes, ranging from small translational slides to larger rotational failures with scarps characteristic of sensitive soils.
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Adsorption of uranium on halloysite

Radiochimica Acta, 2002
SummaryAdsorption of uranium (U(VI)) from aqueous solutions on halloysite type clay was studied as a function of amount of adsorbent, initial concentration and pH. The values of adsorption data were fitted to Freundlich, Langmuir and Dubinin–Radushkevich (D–R) adsorption isotherms.
A. Kilislioglu, B. Bilgin
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Weathering of Granitic Muscovite to Kaolinite and Halloysite and of Plagioclase-Derived Kaolinite to Halloysite

Clays and Clay Minerals, 1991
AbstractWeathered perthite and mixed muscovite-kaolinite from a kaolinitic granite at Trial Hill in east Queensland and kaolinized sericitic alteration from a granite from the Ardlethan Tin Mine of New South Wales were examined by optical, scanning electron (SEM), and transmission electron microscopy (TEM) to determine the alteration process of ...
Ian D. M. Robertson, Richard A. Eggleton
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Complexes alcool - halloysite

Groupe Français des argiles. Compte rendu des réunions d'études, 1949
Glaeser Rachel. Complexes alcool - halloysite. In: Groupe Français des argiles. Compte rendu des réunions d'études. Tome 0-1, 1949. pp. 1-2.
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Surface Modifications of Halloysite

2016
Abstract Tubular halloysite is a naturally occurring clay mineral with a characteristic lumen surface, as well as an interlayer surface and an external surface. The chemical environment endows these surfaces with specific chemical reactivity, enabling site-specific surface modification of halloysite. The lumen surface, covered by Al–OH groups, can be
D. Tan, P. Yuan, D. Liu, P. Du
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The Formation of Halloysite Tubes from Spherulitic Halloysite

Clays and Clay Minerals, 1977
Toshio Sudo, Haruo Yotsumoto
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NOTES ON MISSOURI HALLOYSITE*

Journal of the American Ceramic Society, 1937
A bstract A brief discussion of the properties of halloysite is presented, together with the results of tests made on the firing behavior of halloysite from Lawrence County, Mo.
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The structure of halloysite

Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 1975
G. B. Mitra, S. Bhattacherjee
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