Journal ArticleDOI
The effect of ultrasound on the particle size and structural disorder of a well-ordered kaolinite.
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TLDR
Investigating the effect of sonication on the particle size and structure of a well-crystallized (KGa-1) kaolinite from Georgia showed that particle-size reduction can be controlled through different variables such as power of ultrasonic processor, amount of sample, and time of treatment.About:
This article is published in Journal of Colloid and Interface Science.The article was published on 2004-06-01. It has received 221 citations till now. The article focuses on the topics: Sonication & Kaolinite.read more
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New material of the earliest hominid from the Upper Miocene of Chad
Michel Brunet,Franck Guy,Franck Guy,David Pilbeam,Daniel E. Lieberman,Andossa Likius,Hassane Taïsso Mackaye,Marcia S. Ponce de León,Christoph P. E. Zollikofer,Patrick Vignaud +9 more
TL;DR: New dental and mandibular specimens from three Toros-Menalla fossiliferous localities of the same age are described, including a lower canine consistent with a non-honing C/P3 complex, post-canine teeth with primitive root morphology and intermediate radial enamel thickness, which confirm the morphological differences between S. tchadensis and African apes.
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Surface force measurements at the basal planes of ordered kaolinite particles.
Vishal Gupta,Jan D. Miller +1 more
TL;DR: The results contradict the generally accepted view that basal plane surfaces of kaolinite carry a permanent negative charge due to minor substitution of Al(3+) for Si(4+) in the silica tetrahedral layer, and suggest some surface charge dependency of the two faces with respect to solution pH.
Journal ArticleDOI
Particle size and energetics of gouge from earthquake rupture zones
TL;DR: It is proposed that the observed fine-grain gouge is not related to quasi-static cumulative slip, but is instead formed by dynamic rock pulverization during the propagation of a single earthquake.
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Particle interactions in kaolinite suspensions and corresponding aggregate structures
TL;DR: The surface charge densities of the silica face surface and the alumina face surface of kaolinite particles, recently determined from surface force measurements using atomic force microscopy, show a distinct dependence on the pH of the system.
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Temperature induced changes in ZnO–water nanofluid: Zeta potential, size distribution and viscosity profiles
K.S. Suganthi,K.S. Rajan +1 more
TL;DR: In this paper, the effect of temperature on hydrodynamic size distribution and zeta potential during heating and cooling cycle has been investigated to elucidate its role on dispersion characteristics.
References
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Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
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Traditional and new applications for kaolin, smectite, and palygorskite: a general overview
TL;DR: Clays have been and continue to be one of the more important industrial minerals and are widely utilized in many facets of our society as mentioned in this paper.Clays and clay minerals are used in geology, agriculture, construction, engineering, process industries, and environmental applications.
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The infra-red spectra of layer silicates
V.C. Farmer,J.D. Russell +1 more
TL;DR: In this article, the effect of the deviation from hexagonal symmetry shown by the tetrahedral layers of dioctahedral minerals on their vibrations is theoretically analyzed, and shown to account for some of the principal differences between the spectra of diotheoric and trioctahedric layer silicates in the 1300 to 400 cm−1 region.
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Variability in “crystallinity” Values among the Kaolin Deposits of the Coastal Plain of Georgia and South Carolina
TL;DR: In this paper, the authors measured the relative degree of crystal perfection among 144 samples of Coastal Plain kaolin and showed that the deposits are nonhomogeneous with respect to crystallinity and that the hard and soft types can be distinguished at the 0.95 probability level by an analysis of variance.