Results 261 to 270 of about 2,171,604 (298)
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Screening-controlled morphologies of Yukawa crystals
The Journal of Chemical Physics, 2010Asymptotic expressions for the energies of Yukawa crystals, valid at the Coulomb and hard-sphere (i.e., the weak-screening and strong-screening) limits, are derived. Careful analysis of these limits elucidates the origin of the observed structural transitions that interconnect distinct particle configurations.
Jerzy, Cioslowski, Ewa, Grzebielucha
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Crystallization and Morphology of Rubber
Rubber Chemistry and Technology, 1995Abstract Naturally occurring materials like rubber predate the development of science and engineering as we know it today. Historically, rubber and more generally elastomers, known as a class of high polymers, are versatile and useful materials. Rubber is still an elastomer of choice for many engineering applications.
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Template‐Directed Control of Crystal Morphologies
Macromolecular Bioscience, 2007AbstractBiominerals are characterised by unique morphologies, and it is a long‐term synthetic goal to reproduce these synthetically. We here apply a range of templating routes to investigate whether a fascinating category of biominerals, the single crystals with complex forms, can be produced using simple synthetic methods.
Meldrum, Fiona C., Ludwigs, Sabine
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Morphology and Nanomechanics of Conducting Plastic Crystals
ChemPhysChem, 2004AbstractWe present a temperature‐controlled scanning probe microscopy characterisation of morphology and mechanical behaviour of conducting N,N′‐cyclized pyrazolium salts. These salts are plastic crystals belonging to the pyrazolium trifluoromethanesulfonimide family.
Maritza, Volel +3 more
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Crystal morphology, optical properties of crystals and crystal mounting
2006The first section of the chapter, Section 5.1.1, begins with a general description of crystal morphology and how the handedness of biological molecules limits the space groups they can crystallize in. Description of the proportion of solvent in macromolecular crystals, introduced by Matthews in 1968, is also included.
H. L. Carrell, J. P. Glusker
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Insights into the crystal size and morphology of photocatalysts
Journal of Colloid and Interface Science, 2019Identification of the role of the specific surface area and surface structure as a key factor for photocatalytic performance remains a controversial topic. In this work, three types of N-doped anatase TiO2 with different morphologies are newly synthesized by changing the addition order for the reagents.
Ke Chen +5 more
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The influence of a solvent on the crystal morphology of RDX
Journal of Crystal Growth, 1999 A solvent can have a large influence on the crystal morphology. A molecular modeling technique based on the adsorption of solvent molecules on a crystal surface has been used to predict the influence of a solvent on the morphology of RDX.
Horst, J.H. ter +3 more
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Polymer, 1994
Abstract Linear crystal growth rates of two narrow molecular weight fractions of syndiotactic polypropylene having the same syndiotacticity have been measured using polarized light microscopy over a temperature range of > 20°C. It has been found that a regime III to regime II transition at a supercooling of ∼ 50°C exists.
Jonahira Rodriguez-Arnold +8 more
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Abstract Linear crystal growth rates of two narrow molecular weight fractions of syndiotactic polypropylene having the same syndiotacticity have been measured using polarized light microscopy over a temperature range of > 20°C. It has been found that a regime III to regime II transition at a supercooling of ∼ 50°C exists.
Jonahira Rodriguez-Arnold +8 more
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Morphology and Crystallization in Polymers
1993This paper is an attempt to provide a simple introduction to polymer morphology and crystallisation. The essential and important aspects will be underlined by using selected examples. The paper starts with a preliminary survey on the characteristics of the solid state of polymer.
S.Cimmino, E.Di Pace, C.Silvestre
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2019
Defining planes in a crystal is necessary to describe morphology and for visualisation and description of a diffraction pattern. Planes in crystals are defined relative to the unit cell using a set of three integers called Miller indices. Since a crystal is periodic by translation, Miller indices actually describe sets of planes through the crystal ...
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Defining planes in a crystal is necessary to describe morphology and for visualisation and description of a diffraction pattern. Planes in crystals are defined relative to the unit cell using a set of three integers called Miller indices. Since a crystal is periodic by translation, Miller indices actually describe sets of planes through the crystal ...
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