Results 81 to 90 of about 3,477 (195)

Polymer‐clay nanocomposite hydrogels with multiple responses to multiple stimuli

Responsive Materials, Volume 3, Issue 3, August 2025.
Multistimuli‐responsive polymer‐smectite nanocomposite hydrogels designed by the polymer network design using functionalized polymer networks, copolymer nanocomposite hydrogel and functionalized smectite are summarized. Abstract Hydrogels are widely studied for their stimuli‐responsive properties.
Ploypailin Milin Saengdet, Makoto Ogawa
wiley   +1 more source

Surface pre-coating of talc particles by carboxyl methyl cellulose adsorption : study of adsorption and consequences on surface properties and settling rate [PDF]

, 2006
This paper investigates the adsorption of different sized carboxyl methyl cellulose (CMC) onto talc particles (adsorption isotherm, adsorption reversibility), its consequences on the particles properties (electrophoretic mobility and surface wetting) and
Bacchin, Patrice, Barthes, Patrick, Bonino, Jean-Pierre, Combacau, Marylène, Ferret, Jocelyne, Martin, François, Petit, Sabine   +6 more
core   +4 more sources

Mineralogy and crystal-chemistry of trioctahedral smectites from Turkey

Clays and Clay Minerals
Abstract This study focused on a detailed mineralogical and crystal-chemical analysis of Mg-smectites from four bentonite samples from Turkey. Mg-rich smectites, mainly associated with alkaline and evaporitic depositional conditions, are formed in environments such as salt lakes, brine springs, and sabkhas, as well as in hydrothermal systems, in ...
Adrián Lorenzo, Emilia García-Romero, Mefail Yeniyol, Mercedes Suárez   +3 more
openaire   +2 more sources

Fault Zone Rocks Associated With the Reservoir‐Triggered Seismicity of the Koyna‐Warna Region (India)

Geophysical Research Letters, Volume 52, Issue 14, 28 July 2025.
Abstract In 1962 the Koyna dam was completed 220 km southeast of Mumbai (India). Since then, the area has experienced recurrent seismicity, including one of the largest human‐induced earthquakes so far (1967, Mw 6.3). An extensive deep drilling project was carried out to understand this seismicity.
R. Gomila, A. Chiesurin, E. Spagnuolo, S. Masoch, N. Preto, S. Roy, G. Di Toro   +6 more
wiley   +1 more source

Low-temperature behavior of natural kalsilite with P31c symmetry: An in situ single-crystal X-ray diffraction study [PDF]

, 2010
The low-temperature behavior of a natural kalsilite (ideal formula KAlSiO4) with P31c symmetry has been investigated by in situ single-crystal diffraction. A series of intensity data collections and structural refinements have been performed at 298, 250,
Angel, Ross J., Carpenter, Michael A., Gatta, G. Diego   +2 more
core   +1 more source

K‐Metasomatic Weakening of Oceanic Crust at Shallow Subduction Depths: Evidence From the Rodeo Cove Thrust Zone, Marin Headlands, California

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.
Abstract Studies of exhumed subduction shear zones indicate that metamorphism and metasomatism of the oceanic lithosphere influence the composition, structure, and rheology of megathrust faults, particularly deep along the plate boundary (>30 km). However, less is known about the effects that fluid‐mediated chemical reactions have on the rheological ...
Benjamin D. Belzer, Melodie E. French, Noah J. Phillips   +2 more
wiley   +1 more source

Glen Torridon Mineralogy and the Sedimentary History of the Clay Mineral Bearing Unit [PDF]

Clay minerals are common in ancient terrains on Mars and their presence at the surface alludes to aqueous processes in the Noachian to Early Hesperian (>3.5 Ga). Gale crater was selected as Curiositys landing site largely because of the identification of
Achilles, C. N., Bennett, K. A., Blake, D. F., Bristow, T. F., Castle, N., Chipera, S. J., Craig, P. I., Downs, G. W., Downs, R. T., Fox, V. K., Grotzinger, J. P., Gupta, S., Hazen, R. M., Mahaffy, P. R., Malespin, C.A., Marais, D. J. Des, McAdam, A. C., Ming, D. W., Morris, R. V., Morrison, S. M., Rampe, E. B., Thorpe, M. T., Treiman, A. H., Tu, V., Vaniman, D. T, Vasavada, A. R., Yen, A. S.   +26 more
core   +1 more source

Quantification of Fe-oxidation state in mixed valence minerals: a geochemical application of EELS revisited [PDF]

, 2017
The use of TEM and electron energy loss spectroscopy to determine levels of Fe3+ in solids at nanometre spatial resolution is well established. Here we assess this technique at the energy resolution of a monochromated electron source (0.3 eV) and with ...
Brown, AP, Brydson, RMD, Hillier, S
core   +1 more source

Oued Chebeika 002: A new CI1 meteorite linked to outer solar system bodies

Meteoritics &Planetary Science, Volume 60, Issue 7, Page 1441-1479, July 2025.
Abstract CI1 chondrites are rare meteorites with high scientific value. In fact, they are the most chemically primitive meteorites and show evidence of intense parent‐body aqueous alteration. They also share strong similarities with samples from Ryugu and Bennu asteroids returned by the JAXA Hayabusa2 and NASA's OSIRIS‐REx missions.
J. Gattacceca, M. Gounelle, B. Devouard, J.‐A. Barrat, L. Bonal, A. J. King, C. Maurel, P. Beck, M. Roskosz, J.‐C. Viennet, D. Mukherjee, N. Dauphas, P. R. Heck, T. Yokoyama, K. López García, O. Poch, O. Grauby, C. S. Harrison, V. Vinogradoff, P. Vernazza, S. Tikoo, V. Vidal, P. Rochette, D. AuYang, D. Borschneck, J. Juraszek, B. Clark   +26 more
wiley   +1 more source

Spectral effects of dehydration on phyllosilicates [PDF]

Six phyllosilicates were progressively dehydrated under controlled conditions in an effort to study the spectral effects of their dehydration. The spectra obtained at each level of hydration provide information that may be used in future spectroscopic ...
Bruckenthal, E. A., Singer, R. B.
core   +1 more source