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Artykuły w czasopismach na temat "Crystals size"

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Krause, Simon, Volodymyr Bon, Hongchu Du, Rafal E. Dunin-Borkowski, Ulrich Stoeck, Irena Senkovska i Stefan Kaskel. "The impact of crystal size and temperature on the adsorption-induced flexibility of the Zr-based metal–organic framework DUT-98". Beilstein Journal of Nanotechnology 10 (20.08.2019): 1737–44. http://dx.doi.org/10.3762/bjnano.10.169.

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In this contribution we analyze the influence of adsorption cycling, crystal size, and temperature on the switching behavior of the flexible Zr-based metal–organic framework DUT-98. We observe a shift in the gate-opening pressure upon cycling of adsorption experiments for micrometer-sized crystals and assign this to a fragmentation of the crystals. In a series of samples, the average crystal size of DUT-98 crystals was varied from 120 µm to 50 nm and the obtained solids were characterized by X-ray diffraction, infrared spectroscopy, as well as scanning and transmission electron microscopy. We analyzed the adsorption behavior by nitrogen and water adsorption at 77 K and 298 K, respectively, and show that adsorption-induced flexibility is only observed for micrometer-sized crystals. Nanometer-sized crystals were found to exhibit reversible type I adsorption behavior upon adsorption of nitrogen and exhibit a crystal-size-dependent steep water uptake of up to 20 mmol g−1 at 0.5 p/p 0 with potential for water harvesting and heat pump applications. We furthermore investigate the temperature-induced structural transition by in situ powder X-ray diffraction. At temperatures beyond 110 °C, the open-pore state of the nanometer-sized DUT-98 crystals is found to irreversibly transform to a closed-pore state. The connection of crystal fragmentation upon adsorption cycling and the crystal size dependence of the adsorption-induced flexibility is an important finding for evaluation of these materials in future adsorption-based applications. This work thus extends the limited amount of studies on crystal size effects in flexible MOFs and hopefully motivates further investigations in this field.
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Cheng, Zheng Dong, Min Shuai, Andres Mejia, Hua Wei Li, Zeng Kai Shi, Jiao Yan Ai, Wei Zhou i Ying Chen. "Disk-Shaped Colloids: The Synthesis and Applications of ZrP Crystals". Advanced Materials Research 787 (wrzesień 2013): 177–83. http://dx.doi.org/10.4028/www.scientific.net/amr.787.177.

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We performed systematic experiments on the synthesis of layered crystal α-ZrP and revealed the control of size, aspect ratio and size polydispersity of disk-shaped crystals. The growth of the disks is mediated by oriented attachment, taking place continuously throughout the hydrothermal treatment between various sized disks. The master of the synthesis of layered crystals will contribute to various applications such as the nanocomposites and liquid crystals.
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Sheridan, Lindsay M., Jerry Y. Harrington, Dennis Lamb i Kara Sulia. "Influence of Ice Crystal Aspect Ratio on the Evolution of Ice Size Spectra during Vapor Depositional Growth". Journal of the Atmospheric Sciences 66, nr 12 (1.12.2009): 3732–43. http://dx.doi.org/10.1175/2009jas3113.1.

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Abstract The relationship among aspect ratio, initial size, and the evolution of the size spectrum is explored for ice crystals growing by vapor deposition. Ice crystal evolution is modeled based on the growth of spheroids, and the ice size spectrum is predicted using a model that is Lagrangian in crystal size and aspect ratio. A dependence of crystal aspect ratio on initial size is discerned: more exaggerated shapes are shown to result when the initial crystals are small, whereas more isometric shapes are found to result from initially large crystals. This result is due to the nature of the vapor gradients in the vicinity of the crystal surface. The more rapid growth of the smaller crystals is shown to produce a period during which the size distribution narrows, followed by a broadening led by the initially smallest crystals. The degree of broadening is shown to depend strongly on the primary habit and hence temperature.
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Furuya, K., K. Matsuo, F. Munakata, Y. Akimune, J. Ye, Y. Yamamoto i I. Ishikawa. "Synthesis of large-size β–Si3N4 crystals". Journal of Materials Research 14, nr 5 (maj 1999): 1690–91. http://dx.doi.org/10.1557/jmr.1999.0228.

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Large-sized β–Si3N4 crystals up to 10 mm in length and 0.3 mm in diameter with low impurity concentration are successfully grown from silicon melt in a nitrogen atmosphere. By controlling the concentration of impurities in the silicon melt, a new kind of β–Si3N4 crystal, that is, a transparent coloring one with an absorption edge around a wavelength of 520 nm, is obtained.
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Kim, Hyun Su, Su Kyung Kang, Haoxiang Zhang, Elsa Tsegay Tikue, Jin Hyung Lee i Pyung Soo Lee. "Al-ZSM-5 Nanocrystal Catalysts Grown from Silicalite-1 Seeds for Methane Conversion". Energies 14, nr 2 (18.01.2021): 485. http://dx.doi.org/10.3390/en14020485.

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This study evaluated Al-ZSM-5 nanocrystals grown from silicalite-1 seed crystals as catalysts for the methane dehydroaromatization (MDA) reaction. Silicalite-1 seed crystals sized between 30 and 40 nm were used to grow Al-ZSM-5 under various synthesis conditions. The size of Al-ZSM-5 was significantly affected by the Si/Al ratio (SAR), synthesis time, and silica nutrients/seed crystal ratio (NSR). Larger crystals were obtained with an increased SAR in the synthesis sols. Gradual growth of Al-ZSM-5 occurred with synthesis time, although the growth in crystal size ceased at 5 h of synthesis at 120 °C, indicating the rapid growth of Al-ZSM-5 aided by the silicalite-1 seeds. Precise tuning of Al-ZSM-5 size was possible by changing the nutrient/silicalite-1 seed ratio; a higher NSR led to larger crystals. Two representative Al-ZSM-5 crystals with SARs of 35 and 140 were prepared for catalyst testing, and the crystal sizes were tailored to <100 nm by controlling NSR. The MDA reaction was conducted in the presence of the prepared Al-ZSM-5. The catalyst size exhibited distinct differences in catalyst stability, while the SAR of catalysts did not produce noticeable changes in the catalyst stability of the Al-ZSM-5 crystals and commercial zeolites in this reaction system.
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Kimura, Hideo, Masaru Sakamoto, Takenori Numazawa, Mitsunori Sato i Hiroshi Maeda. "Crystal growth of large size Dy3Al5O12 Garnet single crystals". Journal of Crystal Growth 99, nr 1-4 (styczeń 1990): 850–53. http://dx.doi.org/10.1016/s0022-0248(08)80039-5.

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Louis, Benoit, Aurélie Vicente, Christian Fernandez i Valentin Valtchev. "Crystal Size–Acid Sites Relationship Study of Nano- and Micrometer-Sized Zeolite Crystals". Journal of Physical Chemistry C 115, nr 38 (2.09.2011): 18603–10. http://dx.doi.org/10.1021/jp204234d.

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Shtukenberg, Alexander, i Bart Kahr. "Twisted crystals". Acta Crystallographica Section A Foundations and Advances 70, a1 (5.08.2014): C229. http://dx.doi.org/10.1107/s2053273314097708.

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Modern reviews on crystal growth and defects in crystals overlook the fact that a significant portion of materials can spontaneously grow as single crystals with twisted and bent morphologies and curved crystal lattices. Twisted crystals can be found among all types of materials (molecular crystals, salts, minerals, high polymers, metals, and elements) crystallizing in any point and space group from all types of growth media (vapor, solution, gel, glass, melt, and solid state). Their size spans over more than six orders of magnitude ranging from nm where 3D character is equivocal, to cm or dm (some of the biggest natural crystals). Here are illustrated most important features of twisted crystals as well as an analysis of mechanisms that are responsible for this mysterious phenomenon [1]. In general, formation of a twisted crystal is a complex phenomenon involving with certain requirements for dissymmetry, isomorphism, and crystal chemistry. Also critical are processes at the crystal-medium interface as well as the elasticity and plasticity of the crystalline medium. As such, twisting is strongly controlled by morphology and symmetry of the growth face. It frequently requires impurities, sometimes in extremely low concentrations. The intensity of deformation is inversely proportional to the crystal size. The phenomenon is more common when the driving force for crystallization and the temperature are high. Several mechanisms have been proposed to explain the formation of unusual curved morphologies: axial dislocation in whiskers (Eshelby twist); surface stress in polymer lamellae; surface charge and spontaneous polarization in nanoribbons; inhomogeneous fields forming around a growing crystal; and internal stress created by an inhomogeneous impurity distribution. However, most of the mechanisms proposed are insufficiently developed and need further verification and elaboration. The work was supported by the US National Science Foundation and New York University.
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Bespalov, V. I. "Large-Size Monosectorial Crystal Elements for Powerful Laser Systems". Journal of Nonlinear Optical Physics & Materials 06, nr 04 (grudzień 1997): 467–72. http://dx.doi.org/10.1142/s0218863597000344.

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The potentialities of fabricating large-size monosectorial crystals for powerful laser systems are discussed. Two types of technologies used for high-rate growth of profiled crystals and some results attained in crystal growth in the Institute of Applied Physics of the Russian Academy of Science are described briefly. It is concluded that the growth technique developed may be used for producing large-size optical elements (about 400 × 400 mm2) for laser systems intended for nuclear fusion experiments.
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Setasuwon, Paisan, i S. Kijamnajsak. "Effects of Starting Materials on Molten Salt Synthesis of Bi4Ti3O12". Advanced Materials Research 55-57 (sierpień 2008): 165–68. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.165.

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Na0.5Bi0.5TiO3 is one of the potential candidates for non-lead piezoelectric materials to replace existing lead-based ones. Properties of BNT could be enhanced by reactive templated grain growth (RTGG) technique through induction of grain orientation with crystals of Bi4Ti3O12. Controlling the size of Bi4Ti3O12 crystals during the synthesis with molten salt is a major factor in optimizing RTGG. It was found that molten salt synthesis of Bi4Ti3O12 crystals with NaCl-KCl yielded larger particles, compared with Na2SO4-3K2SO4. Varying the proportion of chloride salt did not produce noticeable changes in crystal size. Bi4Ti3O12 crystals were significantly affected by raw materials treatment. Non-milling of starting powders could approximately double the crystal size
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Rozprawy doktorskie na temat "Crystals size"

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Norfleet, David Matthew. "Sample size effects related to nickel, titanium and nickel-titanium at the micron size scale". Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1187038020.

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Tavana-Roudsari, Aria 1962. "FEEDBACK CONTROL OF CRYSTAL-SIZE DISTRIBUTION IN A POTASSIUM-CHLORIDE CRYSTALLIZER BY ESTIMATION OF NUCLEI DENSITY". Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/291283.

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El-Awady, Jaafar Abbas. "Size effects on plasticity and fatigue microstructure evolution in FCC single crystals". Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1693067871&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Kok, Mei Yeng. "Orientation of molecular solutes in nematic liquid crystals : size and shape effects". Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/25911.

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An understanding of the mechanisms of orientation of solutes in anisotropic solvents is of fundamental importance in the theory of liquid crystalline systems. A systematic study of these mechanisms is presently being conducted in this and other laboratories. As part of this investigation, the orientational order of a series of C[sub 2v] solutes in the liquid crystal mixture 55 wt% 1132 (Merck ZLI 1132) and 45 wt% partially deuterated EBBA (N-(4-ethoxybenzylidene)-2,6-dideutero-4-n-butylaniline) was studied using NMR spectroscopy. This technique provides a description of the average orientation of a solute in terms of the order parameters. The results obtained indicate a good correlation between order parameters and the size and shape of the solutes. A model based on short range hard body interactions, which depend on the dimensions of the solute, was used to predict orientational ordering. Excellent agreement was obtained between observed and calculated order parameters. These results provide supportive evidence that the mechanism responsible for orientation in the 55 wt% 1132 system is short range hard body interactions. A side study was conducted on the ordering of furan and thiophene in the liquid crystalline solvents 1132 and EBBA. Temperature dependence of order parameters in 55 wt% 1132 were examined. Orientation in 1132 and EBBA and temperature dependence in 55 wt% 1132 can be explained in terms of: (i) the short range interactions dependent on the dimensions of the solute, and (ii) the interaction between the molecular quadrupole moment of the solute and the average electric field gradient which is due to the solvent.
Science, Faculty of
Chemistry, Department of
Graduate
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Becker, Martin. "Incompatibility and instability based size effects in crystals and composites at finite elastoplastic strains". Stuttgart Inst. für Mechanik (Bauwesen), 2006. http://deposit.d-nb.de/cgi-bin/dokserv?idn=980579732.

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Hutt, James. "The origin of equiaxed crystals and the grain size transition in aluminium-silicon alloys /". St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16244.pdf.

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Chang, Li-Wu. "Revealing fundamental aspects of size effects in ferroelectrics through experiments on fiber single crystals". Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527668.

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Demir, Eralp [Verfasser]. "Constitutive modeling of fcc single crystals and experimental study of mechanical size effects / Eralp Demir". Aachen : Shaker, 2010. http://d-nb.info/1104047683/34.

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Pessina, Florent. "Toward particle size reduction by spray flash evaporation : the case of organic energetic crystals and cocrystals". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAE031/document.

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La cristallisation en continu de nanoparticules énergétiques est un défi de longue date. Le Spray Flash Evaporation (SFE) est une technique majeure développée et brevetée en interne, pour la production en continu de matériaux énergétiques submicroniques ou nanométriques ; la technologie se base sur la surchauffe d’un solvant pulvérisé dans le vide et s’évaporant de manière flash. Ce présent travail de recherche a pour but de comprendre et contrôler la cristallisation au sein du procédé SFE. Le RDX et le cocristal CL-20:HMX 2:1 sont étudiés. La sursaturation, concernant le SFE, est une fonction du temps et de l’espace liée aux tailles et vitesses de gouttes : elle fut variée par un anti-solvant et par l’amélioration du SFE avec un système double buse. Ensuite, PVP 40K et PEG 400 ont été utilisés afin de contrôler la nucléation et la croissance. Les particules ont pu être ajustées d’une taille de 160 nm à 5 µm, avec des morphologies facettées ou sphériques et avec des sensibilités moindres
The continuous formation of nanosized energetic material is a long-standing challenge. Spray Flash Evaporation (SFE) is a major technique, internally developed and patented, for continuously producing energetic materials at submicron or nano scale; it relies on the superheating of a solvent sprayed into vacuum and thus flashing. This present research project aims to understand and control the crystallisation occurring in the SFE process. RDX and the cocrystal CL-20:HMX 2:1 was studied overcome the limited in situ characterizations also. The supersaturation is a function of time and space in SFE, linked to the size distribution and velocity of droplets. Supersaturation was raised with an anti-solvent and by the enhancement of the SFE with a dual nozzle system. Then PVP 40K and PEG 400 were successfully used to alter the nucleation and the growth. The particles were subsequently tuned from 160 nm spheres to 5 µm grains and were less sensitive, especially toward electrostatic discharge
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Synnatschke, Kevin [Verfasser], i Claudia [Akademischer Betreuer] Backes. "Liquid phase exfoliation and size dependent properties of van der Waals crystals / Kevin Synnatschke ; Betreuer: Claudia Backes". Heidelberg : Universitätsbibliothek Heidelberg, 2021. http://d-nb.info/1229695400/34.

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Książki na temat "Crystals size"

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Gladman, T. Grain size control. Philadelphia, PA: OCP Science, 2004.

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Gladman, T. Grain size control. London: Maney Pub. for the Institute of Materials, Minerals, and Mining, 2004.

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Ren, Shang Yuan. Electronic States in Crystals of Finite Size. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3.

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Ren, Shang Yuan, red. Electronic States in Crystals of Finite Size. New York, NY: Springer New York, 2006. http://dx.doi.org/10.1007/b137381.

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Evarestov, Robert A., i Vyacheslav P. Smirnov. Site Symmetry in Crystals. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-97442-7.

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Evarestov, Robert A., i Vyacheslav P. Smirnov. Site Symmetry in Crystals. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60488-1.

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Communications, Northwest Territories Dept of Culture &. Crystal II archaeological site. Yellowknife, N.W.T: Department of Government Services, 1989.

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Iwasaki, Tomohiro. Organic solvent-free synthesis of magnetic nanocrystals with controlled particle sizes. Hauppauge, N.Y: Nova Science Publishers, 2010.

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communications, Territoires du Nord-Ouest Ministère de la culture et des. Le site archéologique Crystal II. Yellowknife, N.W.T: Department of Government Services, 1989.

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Ėvarestov, R. A. Site symmetry in crystals: Theory and applications. Wyd. 2. Berlin: Springer, 1997.

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Części książek na temat "Crystals size"

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Ruitenbeek, J. M., i D. A. Leeuwen. "Size Effects in Orbital Magnetism". W Physics and Chemistry of Finite Systems: From Clusters to Crystals, 807–12. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2645-0_108.

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Ren, Shang Yuan. "Surface States in One-Dimensional Semi-infinite Crystals". W Electronic States in Crystals of Finite Size, 51–66. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_3.

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Ren, Shang Yuan. "Electronic States in Ideal Quantum Films". W Electronic States in Crystals of Finite Size, 91–118. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_5.

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Ren, Shang Yuan. "Electronic States in Ideal Quantum Wires". W Electronic States in Crystals of Finite Size, 119–44. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_6.

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Ren, Shang Yuan. "Electronic States in Ideal Finite Crystals or Quantum Dots". W Electronic States in Crystals of Finite Size, 145–73. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_7.

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Ren, Shang Yuan. "Concluding Remarks". W Electronic States in Crystals of Finite Size, 177–87. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_8.

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Ren, Shang Yuan. "Introduction". W Electronic States in Crystals of Finite Size, 3–18. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_1.

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Ren, Shang Yuan. "The Periodic Sturm–Liouville Equations". W Electronic States in Crystals of Finite Size, 21–49. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_2.

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Ren, Shang Yuan. "Electronic States in Ideal One-Dimensional Crystals of Finite Length". W Electronic States in Crystals of Finite Size, 67–87. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4718-3_4.

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Lin, M. E., A. Ramachandra, R. P. Andres i R. Reifenberger. "Size-Dependent Thermodynamic and Electronic Properties of Individual Nanometer-Size Supported Gold Clusters". W Physics and Chemistry of Finite Systems: From Clusters to Crystals, 309–22. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2645-0_37.

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Streszczenia konferencji na temat "Crystals size"

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Zeng, Huairen, Gary Qian, Bostjan Zalar i Daniele Finotello. "Size dependence of critical behavior at smectic-A to nematic transition in random network". W Liquid Crystals, redaktorzy Marzena Tykarska, Roman S. Dabrowski i Jerzy Zielinski. SPIE, 1998. http://dx.doi.org/10.1117/12.301266.

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Ando, Shinji, Leping Bu, Masayuki Tsushida i Hideki Tonda. "Molecular Dynamic Simulation of Crack Propagation Behavior in Nano Size HCP Crystals". W ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ipack2005-73042.

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A crack propagation behavior of nano size hcp crystal (13nm × 24nm × 4.6nm) has been simulated by molecular dynamics method using Lennard-Jones type potential. In a case of model crystal with initial notch plane and direction were (1010), [1210], the crack propagated parallel to notch plane and two sets of prismatic slips were occurred at the crack. Therefore, the crack in this crystal is deduced to extend by alternating shear on two intersecting {1010}<1210> prismatic slip systems. In a model crystal with (0001), [1010] initial crack, {1011} first order pyramidal slip occurred at crack tip and following {1012} twin was also observed. In the model crystal with (1010)[0001] initial crack, the crack propagated parallel to initial crack plane with two prismatic slips in front of the crack. To understand strength of nano size titanium crystals as MEMS materials, stress intensity factor, K of each model crystals were also estimated from stress-strain curves obtained from these simulations.
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Hegmann, Torsten, Leah E. Bergquist, Ahlam Nemati, Taizo Mori i Anshul Sharma. "Effects of size and ligand density on the chirality transfer from chiral-ligand-capped nanoparticles to nematic liquid crystals". W Liquid Crystals XXI, redaktor Iam Choon Khoo. SPIE, 2017. http://dx.doi.org/10.1117/12.2275262.

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Baig, Mirza Aqeel, Tahar Laoui, Farid Fadhillah, Oki Muraza i Zafarullah Khan. "Synthesis of Zeolite A Crystals in the Presence of Crystal Growth Inhibitors by Microwave-Assisted Hydrothermal Technique". W ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63655.

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Zeolite A crystals were synthesized at 100°C from sodium metasilicate and aluminium foil by microwave assisted hydrothermal technique. It was confirmed by using X-ray diffraction technique that zeolite A was produced. The influence of heating rate on the zeolite crystal size was investigated using 2.5°C/min, 7.5°C/min, and 50°C/min. It was shown that the low heating rate resulted in larger crystal size with high crystallinity. To evaluate the effect of crystal growth inhibitors (GCIs) on the zeolite synthesis and crystal size, three types of CGIs, namely Poly Ethylene Glycol (PEG); Poly Ethylene Glycol-Methyl Ether (PEG-ME); and Brij-96, were utilized. It was found that PEG gave the best result in terms of zeolite size compared to the other two CGIs by resulting in reduction of the size of zeolite A crystals into about half compared to that without CGI.
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Zerilli, Frank J., i Hermenzo D. Jones. "Surface energy and the size of diamond crystals". W Proceedings of the conference of the American Physical Society topical group on shock compression of condensed matter. AIP, 1996. http://dx.doi.org/10.1063/1.50738.

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Le Floc'h, Laurence, Veronique Quintard, Jean-Francois Favennec i Yann G. Boucher. "Two-dimensional discrete photonic crystals of finite size". W Photonics Europe, redaktorzy Richard M. De La Rue, Pierre Viktorovitch, Clivia M. Sotomayor Torres i Michele Midrio. SPIE, 2004. http://dx.doi.org/10.1117/12.544791.

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Raulo, A., G. Hennard, M. Sowinska, R. B. James, A. Fauler i M. Fiederle. "Te inclusions in large size CdTe THM crystals". W 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154701.

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Yoshinari, Akira, Katsumi Iijima, Hideyo Kodama, Kimio Kano i Hiroyuki Matsuzaki. "Nickel Base Superalloys Single Crystal Growth Technology for Large Size Buckets in Heavy Duty Gas Turbines". W ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/91-gt-022.

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Streszczenie:
A larger size bucket with superior high temperature strength is required for future land based gas turbines. From the viewpoint of high temperature mechanical properties, single crystal alloys are rather promising. To grow larger sized single crystals of nickel base superalloys, a two stage heating and bypass process in which single crystal growth paths are incorporated into large cross sectional positions such as platforms has been developed. It results in successful single crystal growth of alloys for buckets with a total length of 170mm and large lateral cross section. Characteristics of single crystal buckets made by the bypass process and properties of an alumina mold prepared for a single crystal casting are described herein.
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Kolybayeva, Marina I., Igor M. Pritula, Viacheslav M. Puzikov, Vitaly I. Salo, Serge V. Garnov i Sergei M. Klimentov. "Bulk laser damage of large-size KDP crystals obtained at various crystal growth conditions". W Laser-Induced Damage in Optical Materials: 1993, redaktorzy Harold E. Bennett, Lloyd L. Chase, Arthur H. Guenther, Brian E. Newnam i M. J. Soileau. SPIE, 1994. http://dx.doi.org/10.1117/12.180914.

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Allard, M., E. H. Sargent, P. C. Lewis i E. Kumacheva. "Centimeter-size single-domain colloidal crystals on patterned substrates". W Quantum Electronics and Laser Science (QELS). Postconference Digest. IEEE, 2003. http://dx.doi.org/10.1109/qels.2003.238456.

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Raporty organizacyjne na temat "Crystals size"

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Jin, Rongying, Lingyi Xing i Roshan Nepal. Growth of New High-Quality and Large-Size Single Crystals via High Pressure Floating-Zone Technique. Office of Scientific and Technical Information (OSTI), sierpień 2020. http://dx.doi.org/10.2172/1701713.

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Einfeld, W. Glass bead size and morphology characteristics in support of Crystal Mist field experiments. Office of Scientific and Technical Information (OSTI), marzec 1995. http://dx.doi.org/10.2172/41392.

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Watson, P., V. Sergan, J. E. Anderson, J. Ruth i P. J. Bos. A Study of the Dynamics of Reflection Color, Helical Axis Orientation, and Domain Size in Cholesteric Liquid Crystal Displays. Fort Belvoir, VA: Defense Technical Information Center, styczeń 1998. http://dx.doi.org/10.21236/ada455825.

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Su, Ning, Jerald S. Bradshaw, Guoping Xue, N. K. Dalley i Paul B. Savage. Syntheses and Crystal Structures of Novel Diaza-18-Crown-6 Ligands Containing Aromatic Thiol-Derived Side Arms. Fort Belvoir, VA: Defense Technical Information Center, maj 1999. http://dx.doi.org/10.21236/ada362936.

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Percec, Virgil, Dimitris Tomazos i Reginal A. Willingham. The Influence of the Polymer Backbone Flexibility on the Phase Transitions of Side Chain Liquid Crystal Polymers Containing 6-(4-Methoxy-Beta-Metylstyryl) Phenoxy)Hexyl Side Groups. Fort Belvoir, VA: Defense Technical Information Center, maj 1989. http://dx.doi.org/10.21236/ada208821.

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Komiya, Zen, Coleen Pugh i Richard R. Schrock. Synthesis of Side Chain Liquid Crystal Polymers by Living Ring Opening Metathesis Polymerization. 1. Influence of Molecular Weight, Polydispersity, and Flexible Spacer Length (n=2-8) on the Thermotropic behavior of the Resulting Polymers. Fort Belvoir, VA: Defense Technical Information Center, marzec 1992. http://dx.doi.org/10.21236/ada248699.

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