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Carcharopsis prototypus and the adaptations of single crystallite enameloid in cutting dentitions
Carcharopsis Priohybodus Thaiodus Carboniferous Enameloid ultrastructure
2009/10/20
Carcharopsis is a Palaeozoic shark comprising an enameloid-covered cutting dentition comprising serrated teeth.The enameloid ultrastructure of the teeth of C. prototypus is examined for the first time...
Determination of Mean Crystallite Dimensions from X-Ray Diffraction Peak Profiles: A Comparative Analysis of Synthetic Hematites
BET Hematite Iron Oxides Mean Crystallite Dimension Powder X-ray Diffraction Surface Area XRD
2011/12/8
Abstract: X-ray diffraction (XRD) profile analysis of eight synthetic hematite samples was performed to identify the best parameters for determining the apparent mean crystallite dimension (D) and, co...
Optimization of the Synthesis Procedure of LiMn2O4 Electrodes for Efficient Rechargeable Lithium Cells: Influence of the Crystallite Size and Surface Defects on the Electrochemical Performances of 3 V Li1+xMn2O4 and 4V Li1-xMn2O4 Electrodes
Electrochemical model Li batteries nanocrystalline materials
2010/12/10
Various LiMn2O4 electrode materials, having different crystallite sizes ranging from ∼50Å to ∼500Å, have been investigated either in 3V or in 4V Li batteries. In agreement with...
XRD Measurement of Mean Crystallite Thickness of Illite and Illite/Smectite: Reappraisal of the Kubler Index and the Scherrer Equation
Crystal Thickness Illite Illite/Smectite Kubler Index Mixed-Layer Crystals Scherrer Equation XRD
2011/12/22
Abstract: The standard form of the Scherrer equation, which has been used to calculate the mean thickness of the coherent scattering domain (CSD) of illite crystals from X-ray diffraction (XRD) full w...
A New Method for the Preparation of Fine-Grained SnO2 and WO3 Powders: Influence of the Crystallite Size on the Electrochemical Insertion of Li+ in SnO2 and WO3 Electrodes
Fine-Grained SnO2 and WO3 Powders the Electrochemical Li+ SnO2 and WO3 Electrodes
2010/12/14
We propose an unconventional method to obtain fine-grained SnO2 and WO3 powders. It uses as precursors, polymer complexes between polyethylene oxide (POE) and SnCl4 or WCl6 respectively. By pyrolysis ...
Mechanisms of the Reversible Electrochemical Insertion of Lithium Occurring with NCIMs (Nano–Crystallite Insertion–Materials)
the Reversible Electrochemical Lithium NCIMs Nano–Crystallite Insertion–Materials
2010/12/14
A new family of insertion-compound electrodes, so called NCIMs (Nano-Crystallite-Insertion-Materials) has been proposed: the major requirement is that the electrode materials have to be polycrystallin...
Mechanisms of the Reversible Electrochemical Insertion of Lithium Occurring With NCIMs (Nano-Crystallite-Insertion-Materials)
the Reversible Electrochemical Insertion Lithium NCIMs
2010/12/15
A new family of insertion-compound electrodes, so called NCIMs (Nano-Crystallite-Insertion-Materials), has been proposed: the major requirement is that the electrode materials have to be polycrystalli...
Relationship among Derivative Spectroscopy, Color, Crystallite Dimensions, and Al Substitution of Synthetic Goethites and Hematites
Aluminum Color Fiber-optic Doppler anemometry Goethite Hematite Visible spectroscopy
2012/1/13
Nine hematites and 22 goethites were synthesized by a variety of methods to obtain monomineralic samples having a range of Al substitutions and particle sizes. The second derivative of absorbance and ...
The Influence of Crystallite Size on the Apparent Basal Spacings of Kaolinite
Crystallite Size Apparent Basal Spacings Kaolinite
2012/2/13
For very small crystallites diffraction theory shows not only broadening of powder lines, but generally also a shift of the line position, depending on the change of the structure factor over the rang...