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Spherulite (plural spherulites) a minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone;Spherulite small, rounded bodies that commonly occur in vitreous igneous rocksInformation and translations of spherulite in the most comprehensive dictionary definitions resource on the web
Discussion Polarized Optical Microscopy
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Spherulitetm r-10-Define spherulite spherulite synonyms, spherulite pronunciation, spherulite translation, English dictionary definition of spherulite n A small, usually spheroidal body consisting of radiating crystals, found in obsidian and other glassy lava rocks spher′u·lit′ic adj American Heritage®This shows that the spherulite consists of radiate, doubly refracting fibres which have a straight extinction;
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Non Technical Summary Spherulite formation is an example of selfassembly, where building blocks spontaneously arrange themselves into larger, more complex structures These structures determine the material's functionality in both foods and biological systems Understanding of spherulite formation is limitedThis is eventually overgrown, including both originally separate structures (see pink arrows in Fig 2E)Spherulite (plural spherulites) a minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone;
Also, you should definitely try seeding if you think nucleation is the problem Take one of your drops with lots of crystals (spherulites) and vortex it vigorously to break the crystals (called a'In the absence of salt, the spherulite kinetic assay suggests the presence of spherulites from ~ 40 to 45 min' 'Under the polarized light microscope, addition of a full waveplate to the optical setup showed that spherulites grown in the absence or presence of salt contain radially oriented amyloid fibrils'Given the relative rarity of spherulite formation in nonglass forming metallic melts this article focuses solely on the spherulite structures Such spherulites are observed to form for cooling rates in the range 700–4600 K s −1 , corresponding to droplets sizes of >850 μm, 850–500 μm, 500–300 μm and 300–212 μm
The arms of the black cross correspond to those fibers that are extinguished The aggregate is too finegrained to directly determine what minerals it is composed of using visible light microscopySpherulite, spherical body generally occurring in glassy rocks, especially silicarich rhyolites Spherulites frequently have a radiating structure that results from an intergrowth of quartz and orthoclaseEach spherulite exhibits a CoG from which radial lines emerge (see pink arrows in Fig 2D) There is a disruption zone between adjacent spherulites (see blue arrows in Fig 2E);
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Only in this way do we find that is possible to bring the totality of spherulite research within the focus of a small number of generative mechanisms, while at the same time disposing of prejudices relating to spherulitic growth that have arisen from attention to a limited number of spherulite forming substancesSpherule ( sfēr'ūl ), 1 A small spheric structure 2 A sporangiallike structure filled with endospores at maturity, produced within tissue and in vitro by Coccidioides immitis LL sphaerula, dim of L sphaera, sphere, ballSpherule definition is a little sphere or spherical body How to use spherule in a sentence
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Homogeneous Nucleation
\\ sfiryә līt\\ n(13) A rounded aggregate of radiating crystals with a fibrous appearance under the microscope Spherulites have been observed in most crystalline plastics They originate from aThis is eventually overgrown, including both originally separate structures (see pink arrows in Fig 2E)Spherulite definition, a rounded aggregate of radiating crystals found in obsidian and other glassy igneous rocks See more
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Homogeneous nucleation of spherulites at the melting point is a highly unfavorable process because the energy barrier of nucleation is infinitely high and the critical nucleus size is infinitely large The degree of super cooling defines the critical cluster size and energy of spontaneous crystallization;Many structural materials (metal alloys, polymers, minerals, etc) are formed by quenching liquids into crystalline solids This highly nonequilibrium process often leads to polycrystalline growth patterns that are broadly termed "spherulites" because of their largescale average spherical shape DeDefinition of spherulite in the Definitionsnet dictionary Meaning of spherulite What does spherulite mean?
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This shows that the spherulite consists of radiate, doubly refracting fibers that have a straight extinction;Atsushi Shinya, Ryogo Ono, Hironori Atarashi, Shinichi Yamazaki, Kunio Kimura, Morphology and growth rate of spherulite of cyclic poly(εcaprolactone) having a triazole group at the closing point, Polymer, /jpolymer, (), ()The arms of the black cross correspond to those fibers that are extinguished The aggregate is too finegrained to directly determine what minerals it is composed of using visible light microscopy
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In petrology, spherulites (/ ˈsfɛrʊlaɪt /) are small, rounded bodies that commonly occur in vitreous igneous rocksSpherulite composed of Feldspar and Acicular torumaline crystals Corsica (Location Unknown) PPL image, 2x (Field of view = 7mm) Spherulite composed of Feldspar and Acicular torumaline crystals Corsica (Location Unknown) XPL image, 2x (Field of view = 7mm) Particular of a Spherulite composed of Feldspar and Acicular torumaline crystalsSpherulite is still employed), this term is used in a broader sense of densely branched, polycrystalline solidification patterns 2,9,12–21Spherulitic patterns exhibit a diversity of forms and representative patterns are shown in Fig 1 Experimental studies performed over the last century
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A spherulite embedded into a mosaic mesogen viewed between crossed polarizers Alignment of the polymer molecules within the lamellae results in birefringence producing a variety of colored patterns when spherulites are viewed between crossed polarizers in an optical microscopeDetails about 1030g Natural green fluorite spherulite quartz crystal cure spherulite XQ332 See original listing 1030g Natural green fluorite spherulite quartz crystal cure spherulite XQ332 Condition New Ended Feb 09, 21 Winning bid US $50 9 bids Shipping FREE EconomySpherulites are not unique entities but have textures varying between one growth condition, one system and another
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Discussion Polarized Optical Microscopy
Spherulite definition any of several spherical masses of radiating needlelike crystals of one or more minerals Meaning, pronunciation, translations and examplesDerived terms spheruliticThe center of the spherulite, R is the spherulite radius, and C1 The velocity of the interface ur (ur = dR/dt where R is represents the background concentration of water at some the radius of the spherulite) is given by the choice of distance R1 into the surrounding matrix Equation (5) states spherulite growth law
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A spherulite embedded into a mosaic mesogen viewed between crossed polarizers Alignment of the polymer molecules within the lamellae results in birefringence producing a variety of colored patterns when spherulites are viewed between crossed polarizers in an optical microscopeA small, usually spheroidal body consisting of radiating crystals, found in obsidian and other glassy lava rocksDerived terms spherulitic
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One‐dimensional (1D) and 2D structures by crystallization‐driven self‐assembly of block copolymers (BCPs) can form fascinating hierarchical structures through secondary self‐assembly But examples ofNon Technical Summary Spherulite formation is an example of selfassembly, where building blocks spontaneously arrange themselves into larger, more complex structures These structures determine the material's functionality in both foods and biological systems Understanding of spherulite formation is limitedThe arms of the black cross correspond to those fibres which are extinguished The aggregate is too fine grained for us to determine directly of what minerals it is composed
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The spherulite size and shape are obvious characteristics In addition it is possible to comment on the extent to which the spherulite shows an internal 'fibrous' texture and the visibility of the dark 'maltese cross', which arises from the radial symmetry of the spherulite's structureQuantitative mesoscale kinetic simulations of structure and topology evolution during polymer solidification and amorphoustospherulite crystallization phenomena is an important issue in the field of advanced polymer processingQroqqa commented on the word spherulite Actually the OED conflates the genus and the common noun What it says under 'spherulite' is 2 Palæont (With capital initial) A genus of fossil molluscs In early use in L form Sphærulītēs 14 GRIFFITH tr Cuvier XII 92 Sphærulites,where the valves are roughened by irregularly raised plates 1841 MILLER OR Sandst
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Given the relative rarity of spherulite formation in nonglass forming metallic melts this article focuses solely on the spherulite structures Such spherulites are observed to form for cooling rates in the range 700–4600 K s −1 , corresponding to droplets sizes of >850 μm, 850–500 μm, 500–300 μm and 300–212 μmSpherulite definition is a usually spherical crystalline body of radiating crystal fibers often found in vitreous volcanic rocksThe barrier is infinite at
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This shows that the spherulite consists of radiate, doubly refracting fibers that have a straight extinction;In polymer physics, spherulites (from Greek sphaira = ball and lithos = stone) are spherical semicrystalline regions inside non branched linear polymersDetails about 1640g Natural green fluorite spherulite quartz crystal cure spherulite XQ117 See original listing 1640g Natural green fluorite spherulite quartz crystal cure spherulite XQ117 Condition New Ended Feb 10, 21 Winning bid US $1907 6 bids Shipping FREE Economy
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Each spherulite exhibits a CoG from which radial lines emerge (see pink arrows in Fig 2D) There is a disruption zone between adjacent spherulites (see blue arrows in Fig 2E);The center of the spherulite, R is the spherulite radius, and C1 The velocity of the interface ur (ur = dR/dt where R is represents the background concentration of water at some the radius of the spherulite) is given by the choice of distance R1 into the surrounding matrix Equation (5) states spherulite growth lawThe advanced microencapsulation technology of Spherulite™ R10 allows the protection of retinol, a gold standard for skin ageing which influences a variety of cellular processes, in the multilayered crystalline microcapsules
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Banded spherulite with negative birefringence has been observed in PTT under polarized light microscopy The formation of banded spherulites is attributed to lamellar twisting The twisting mechanism was evidenced by the observations of wavylike morphology from reflected light microscopy and transmission electron microscopySpherulite definition any of several spherical masses of radiating needlelike crystals of one or more minerals Meaning, pronunciation, translations and examplesUniversity of Bradford, UK A polymer is cooled from the melt phase, where spherulites can be seen forming This video is a few years old and unfortunately
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