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Journal articles on the topic 'Crystalline matrix'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Gonzáles, Sergio, P. Pérez, G. Garcés, and P. Adeva. "Effect of RE Elements and Ni Contents on the Microstructure and Mechanical Properties of Rapidly Solidified Mg Ribbons." Materials Science Forum 539-543 (March 2007): 1662–68. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1662.

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The effect of the concentration of Ni, Y and La-rich mischmetal on the thermal stability, microstructure and mechanical properties of ribbons tested in the temperature range 25-350°C have been evaluated. The low-alloyed materials were crystalline or partially crystalline while high-alloyed materials were amorphous. The amorphous alloys experienced numerous transformations during heating above 170°C. A transition in the amorphous state was observed in all alloys prior to the crystallization stage. The alloy composition determines the sequence of phase transformations during crystallization. In

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2

Balasingh, C., Alias Abuhasan, and P. K. Predecki. "Diffraction Peak Broadening Studies in Al2O3 (Whisker) Composites." Powder Diffraction 6, no. 1 (1991): 16–19. http://dx.doi.org/10.1017/s0885715600016791.

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AbstractDiffraction peak broadening analyses were carried out on diffraction profiles of several reflections from hot-pressed α-Al2O3 containing 29, 18 and 10 volume % β-SiC whiskers. The data were analyzed and compared using four different integral breadth methods for microstrain and crystalline size. All four methods gave comparable results, within an order of magnitude, for the microstrains in each phase: (2-15 × 10−4 for the matrix and (6-19 × 10−4 for the whiskers). Microstrains in both matrix and whiskers decreased with decreasing volume % of whiskers for all four methods. Trends in the

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3

Bensouici, A., J. L. Plaza, E. Diéguez, et al. "CdTe aggregates in KBr crystalline matrix." Journal of Luminescence 129, no. 9 (2009): 948–51. http://dx.doi.org/10.1016/j.jlumin.2009.04.001.

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4

Smirnov, V. P., B. S. Razbirin, A. N. Starukhin, et al. "C60Cl24 molecule in crystalline toluene matrix." International Journal of Quantum Chemistry 100, no. 4 (2004): 448–51. http://dx.doi.org/10.1002/qua.20077.

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5

Cerqueira, M. Fátima, Margarita Stepikhova, Maria Losurdo та ін. "Effect of the Matrix on the 1.5μm Photoluminescence of Er-Doped Silicon Quantum Dots". Materials Science Forum 514-516 (травень 2006): 1116–20. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1116.

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Erbium doped nanocrystalline silicon thin films were produced by reactive magnetron r.f. sputtering. Their structural and chemical properties were studied by micro-Raman, spectroscopic ellipsometry and Rutherford backscattering spectroscopy. Films with different crystalline fraction and crystallite size were deposited by changing the deposition parameters. The impact of the composition and structure of Erbium ions environment on the 1.5 µm photoluminescence is discussed.

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Bayramov, M. N., A. A. Nabiev, N. Sh Aliyev та M. A. Nuriev. "Effect of iron oxide Fe3О4 nanoparticles on the structure and thermophysical properties of nanocomposites based on high-density polyethylene". Perspektivnye Materialy 4 (2024): 44–53. http://dx.doi.org/10.30791/1028-978x-2024-4-44-53.

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HDPE/Fe3O4 composites with Fe3O4 nanofiller content ω = 1, 3 and 5 vol. %. The structure and thermophysical properties of HDPE/Fe3O4 nanocomposites were studied and it was found that with an increase in the concentration of Fe3O4 nanoparticles in the polymer matrix, cardinal morphological changes occur in the supramolecular structure of the HDPE matrix. It has been established that with an increase in the concentration of the nanofiller, the mobility of the macromolecular chains of the matrix and the thickness of the crystalline lamellae decrease. Nanoparticles disrupt the regularity of lamell

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7

He, Jie, Shu Chen, and Jiu Zhou Zhao. "Developing Metallic Glass Matrix Composites with In Situ Crystalline Spheres through the Mechanism of Liquid-Liquid Phase Decomposition in Miscibility Gap of the Multicomponent Immiscible Alloys." Materials Science Forum 682 (March 2011): 9–17. http://dx.doi.org/10.4028/www.scientific.net/msf.682.9.

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The solidification characteristics of the immiscible alloys exhibit a unique opportunity in designing composites with spherical crystalline particles dispersed in the amorphous metal matrix. The multicomponent Al82.87Pb2.5Ni4.88Y7.8Co1.95 immiscible alloy has been designed. The ribbon samples of the multicomponent alloy were prepared by the rapid quenching. The microstructure was characterized and the phase constitution and transformation were studied. The as-quenched samples revealed the Al-based metallic glass matrix is embedded by the spherical crystalline Pb-rich particles. A method has be

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8

NOVAGA, MATTEO, and EMANUELE PAOLINI. "STABILITY OF CRYSTALLINE EVOLUTIONS." Mathematical Models and Methods in Applied Sciences 15, no. 06 (2005): 921–37. http://dx.doi.org/10.1142/s0218202505000571.

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In this paper we analyze the stability properties of the Wulff-shape in the crystalline flow. It is well known that the Wulff-shape evolves self-similarly, and eventually shrinks to a point. We consider the flow restricted to the set of convex polyhedra, we show that the crystalline evolutions may be viewed, after a proper rescaling, as an integral curve in the space of polyhedra with fixed volume, and we compute the Jacobian matrix of this field. If the eigenvalues of such a matrix have real part different from zero, we can determine if the Wulff-shape is stable or unstable, i.e. if all the e

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9

Li, Xu Dong, Shu Cai, Wen Juan Zhang, and Zhe Zhang. "Phase Evolution and Microstructure Characteristics of Calcium Phosphate Based Glass Ceramics Prepared by Sol-Gel Technique." Key Engineering Materials 434-435 (March 2010): 572–75. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.572.

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Calcium phosphate based glasses and glass-ceramics in the system of 54CaO-36P2O5- (10-x)Na2O-xSrO were fabricated by sol-gel method. The structures of the glasses were investigated by Fourier transform infrared spectroscopy and X-ray diffraction has been used to determine the crystallize phase from glass matrix. The synthesized glass matrix shows a metaphosphate-like structure which consists of a chain and /or ring structure. After sintered at 1150 °C, the crystalline phase -Ca2P2O7 and a small quantity of amorphous glass were observed clearly. With 1.0 mol% addition of SrO, the average grain

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10

McKernan, Stuart, and M. Grant Norton. "The detection of Xe gas bubbles in MgO high-resolution lattice images." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 632–33. http://dx.doi.org/10.1017/s0424820100139536.

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Room temperature implantation of noble gases into metal and ceramic targets results in the formation of gas bubbles within the crystalline matrix. The pressure within these bubbles is sufficient to stabilize the gas in a crystalline form which, in general has an epitactic relation with the matrix. The size of the bubbles increases with increasing noble gas fluence. As the size of the bubbles increases, the pressure within the bubble decreases. There is therefore a limiting size for the bubble above which the trapped noble gas exists in the fluid phase rather than as a crystalline inclusion. Be

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11

Baldwin, Daniel F., Minuro Shimbo, and Nam P. Suh. "The Role of Gas Dissolution and Induced Crystallization During Microcellular Polymer Processing: A Study of Poly (Ethylene Terephthalate) and Carbon Dioxide Systems." Journal of Engineering Materials and Technology 117, no. 1 (1995): 62–74. http://dx.doi.org/10.1115/1.2804373.

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One of the critical steps in the production of microcellular polymers is the dissolution of gas into a polymer matrix. In this paper, the formation of a gas and semi-crystalline thermoplastic solution is studied in the presence of a crystallizing matrix with particular emphasis on the ultimate effects of crystallinity on microcellular polymer processing. In this particular study, carbon dioxide was selected as the gas and poly (ethylene terephthalate) (PET) as the polymer. Polymer/gas solution formation is the precursor to the microvoid nucleation and growth during microcellular polymer proces

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12

Кравец, В. А., Е. В. Дементьева та М. В. Заморянская. "Исследование стеклокерамики с кристаллитами YNbO-=SUB=-4-=/SUB=- : Tb-=SUP=-3+-=/SUP=-, синтезированной при разных температурах". Оптика и спектроскопия 130, № 11 (2022): 1715. http://dx.doi.org/10.21883/os.2022.11.53778.3911-22.

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The optimal temperature regime for the synthesis of glass ceramics with YNbO4 : Tb3+ crystalline inclusions has been established. Glass ceramics were synthesized on the basis of a sodium borate matrix from oxide precursors. It has been established that synthesis at a temperature of 950°C is optimal, since at this temperature only one crystalline phase YNbO4 : Tb3+ is formed in the glass and its content is maximum. The spectra of crystalline inclusions and the glass matrix were obtained by the method of local cathodoluminescence, the phase composition of glass ceramics was studied by X-ray phas

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Kravets V. A., DementevaE.V., and ZamoryanskayaM.V. "Study of Glass Ceramics with YNbO-=SUB=-4-=/SUB=- : Tb-=SUP=-3+-=/SUP=- Crystallites Synthesized at Different Temperatures." Optics and Spectroscopy 130, no. 11 (2022): 1450. http://dx.doi.org/10.21883/eos.2022.11.55104.3911-22.

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The optimal temperature regime for the synthesis of glass ceramics with YNbO4 : Tb3+ crystalline inclusions has been established. Glass ceramics were synthesized on the basis of a sodium borate matrix from oxide precursors. It has been established that synthesis at a temperature of 950oC is optimal, since at this temperature only one crystalline phase YNbO4 : Tb3+ is formed in the glass and its content is maximum. The spectra of crystalline inclusions and the glass matrix were obtained by the method of local cathodoluminescence, the phase composition of glass ceramics was studied by X-ray phas

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14

Solnyshkin, A. V., I. L. Kislova, I. M. Morsakov, et al. "Dielectric properties of composite materials based on P(VDF-TrFE) copolymer and deuterated triglicyne sulfate crystal." Functional Materials Letters 12, no. 04 (2019): 1950048. http://dx.doi.org/10.1142/s1793604719500486.

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The film structures on the base of soft and crystalline ferroelectrics (poly(vinylidene fluoride - trifluoroethylene) copolymer and deuterated triglycine sulfate) were produced. The volume content of the DTGS microcrystal particles embedded in the polymer matrix of the composite films was up to 10%. It was found crystalline phase changes in the polymer matrix at the DTGS inclusions presence. The DTGS crystal particles increased dielectric permittivity and electrical conductivity of the composite films. The temperature dependences of the dielectric permittivity indicated increasing the phase tr

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15

Dippong, Thomas, Erika Andrea Levei, Iosif Grigore Deac, Emilia Neag, and Oana Cadar. "Influence of Cu2+, Ni2+, and Zn2+ Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO2 Matrix Obtained by an Innovative Sol-Gel Route." Nanomaterials 10, no. 3 (2020): 580. http://dx.doi.org/10.3390/nano10030580.

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This paper presents the synthesis of metal doped Co ferrites, M0.2Co0.8Fe2O4 (M = Cu2+, Ni2+, and Zn2+) embedded in SiO2 matrix by an innovative sol-gel route. The structural and morphological characterization provided information about the crystalline phases, crystallite size, and the shape of the prepared ferrites. The thermal study depicted the thermal decomposition and stability of the obtained ferrites. X-ray diffraction indicated nanocrystalline ferrites with spinel structure and the lack of crystalline phase impurities, while Fourier transform infrared spectroscopy revealed the presence

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16

Islam, Jahid MM, Md Altaf Hossan, FR Alom, M. Iqbal H. Khan, and Mubarak A. Khan. "Extraction and characterization of crystalline cellulose from jute fiber and application as reinforcement in biocomposite: Effect of gamma radiation." Journal of Composite Materials 51, no. 1 (2016): 31–38. http://dx.doi.org/10.1177/0021998316636455.

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In this study, crystalline cellulose was prepared through hydrolysis of jute fiber and was used as reinforcement of gelatin-based biocomposite film. The effects of crystalline celluloses loading on the morphology, mechanical properties and water sensitivity of the biocomposite were investigated by means of Scanning electron microscopy, tensile strength testing and water absorption testing. The developed biocomposite film showed homogeneous dispersion of crystalline celluloses within the gelatin matrix and strong interfacial adherence between matrix and reinforcement. A significant increase in

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17

Bohley, Christian, and Toralf Scharf. "Matrix optics approach for liquid crystalline blue phases." Optics and Lasers in Engineering 43, no. 3-5 (2005): 329–39. http://dx.doi.org/10.1016/j.optlaseng.2004.02.005.

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18

de Ruijter, C., S. van der Zwaag, R. Stolze, and T. J. Dingemans. "Liquid crystalline matrix polymers for aramid ballistic composites." Polymer Composites 31, no. 4 (2009): 612–19. http://dx.doi.org/10.1002/pc.20835.

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19

Kuchin, Dmitriy S., Victor V. Koledov, Pavel V. Bogun, Peter V. Lega, Vedamanickam Sampath, and Vladimir G. Shavrov. "Simulation of the Electric Current Flow in Amorphous-Crystalline Ti₂NiCu Alloy with Shape Memory Effect." Materials Science Forum 845 (March 2016): 146–49. http://dx.doi.org/10.4028/www.scientific.net/msf.845.146.

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A new technique for the production of nanograined alloys from rapidly quenched amorphous ribbons by serial electric pulses has been proposed recently [1]. The present work involves a theoretical study of electric current flow in a nonhomogeneous Ti2NiCu alloy consisting of an amorphous matrix with a crystalline phase of spherical morphology embedded in it. The electric current density distribution was calculated in the vicinity of a spherical nucleus, which has an electrical resistance that is only 0.4 times that of the amorphous matrix. The calculation of Joule heat density was done in the nu

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20

Miura, E., Gene E. Ice, E. D. Specht, et al. "X-Ray Study of Pd₄₀Cu₃₀Ni₁₀P₂₀ Bulk Metallic Glass Brazing Filler for Ti-6Al-7Nb Alloy." Materials Science Forum 539-543 (March 2007): 1983–87. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1983.

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Crystalline precipitates in a bulk-metallic-glass (BMG) braze were investigated with an intense x-ray microbeam. The precipitates were found in the Pd40Cu30P20Ni10 BMG braze matrix after joining crystalline Ti-6Al-7Nb. However, the role (if any) played by the precipitates in improving the mechanical bond of the BMG/crystalline joint is unknown. X-ray microdiffraction and microfluorescence measurements from small sample volumes were made with an ~ 0.5 x 0.5 μm2 beam. Spatially-resolved Laue diffraction and x-ray fluorescence measurements were made on several second-phase crystals within the BMG

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21

Hou, Zhao Xia, Zhao Lu Xue, Shao Hong Wang, et al. "Transparent Oxyfluoride Glass-Ceramics Containing CaF₂ Nano-Crystalline Phase." Key Engineering Materials 512-515 (June 2012): 1015–18. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.1015.

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Transparent oxyfluoride tellurite glass with the composition of TeO2-SiO2-AlF3-CaO-KF system were prepared by conventional melting and annealing technique, and the transparent oxyfluoride glass-ceramics containing CaF2 nano-crystallines were obtained by controlled heat-treatment. The effect of heat-treatment schedules on the crystallization behavior and the microstructure of the glass-ceramics were analyzed by differential scanning caborimetry (DSC) analysis, X-ray diffraction (XRD) analysis, infrared (IR) spectrum and scanning electron microscopy (SEM). The sole CaF2 crystalline phase was con

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22

Gasperini, Antonio, Angelo Malachias, Gilberto Fabbris, et al. "Investigation of indirect structural and chemical parameters of GeSi nanoparticles in a silica matrix by combined synchrotron radiation techniques." Journal of Applied Crystallography 45, no. 1 (2011): 71–84. http://dx.doi.org/10.1107/s0021889811049302.

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The formation of GeSi nanoparticles on an SiO2matrix is studied here by synchrotron-based techniques. The shape, average diameter and size dispersion were obtained from grazing-incidence small-angle X-ray scattering data. X-ray diffraction measurements were used to obtain crystallite sizes and compositionviaresonant (anomalous) measurements. By using these techniques as input for extended X-ray absorption fine structure analysis, the local composition surrounding the Ge atoms is investigated. Although the results for each of the methods above are commonly analyzed separately, the combination o

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23

Wang, Yi Ming, Li Jing Zheng, and Shu Jie Pang. "Formation and Mechanical Properties of Mg-Cu-Al-Gd Bulk Metallic Glass Composites." Materials Science Forum 650 (May 2010): 290–94. http://dx.doi.org/10.4028/www.scientific.net/msf.650.290.

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The effect of Al addition to Mg65Cu25Gd10 glassy alloy on the microstructure, thermal properties and mechanical properties were investigated. The Mg65Cu25-xAlxGd10 (x=1-7at. %) bulk metallic glass composites were formed by copper mold casting, and the fraction and size of the crystalline phases in the glassy matrix changed with the Al content. The Mg65Cu24Al1Gd10 glass composite consisted of a small amount of crystalline phases in the glassy matrix possesses high compressive strength up to about 850 MPa.

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Garai, Mrinmoy, Arianit A. Reka, and Shibayan Roy. "Mechanical properties of spinel (MgCr2O4) phase containing alumino-silicate glass-ceramic." Characterization and Application of Nanomaterials 7, no. 2 (2024): 6046. http://dx.doi.org/10.24294/can.v7i2.6046.

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This research study explores the addition of chromium (Cr6+) ions as a nucleating agent in the alumino-silicate-glass (ASG) system (i.e., Al2O3-SiO2-MgO-B2O3-K2O-F). The important feature of this study is the induction of nucleation/crystallization in the base glass matrix on addition of Cr6+ content under annealing heat treatment (600 ± 10 °C) only. The melt-quenched glass is found to be amorphous, which in the presence of Cr6+ ions became crystalline with a predominant crystalline phase, Spinel (MgCr2O4). Microstructural experiment revealed the development of 200–500 nm crystallite particles

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Gan, Kefu, and Zhiming Li. "Unveiling the role of glassy nanodomains in strength and plasticity of crystal–glass nanocomposites via atomistic simulation." Journal of Applied Physics 131, no. 8 (2022): 085109. http://dx.doi.org/10.1063/5.0080746.

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Crystalline metals and alloys are usually ductile owing to lattice dislocations and various slip systems, while bulk metallic glasses show ultrahigh yield strength with very limited plasticity. Combining the crystalline and glassy phases in one alloy has recently been shown to be promising for achieving both ultrahigh strength and good deformability. Yet, it is challenging to capture the dynamic dislocation behavior through the deformation process and elucidate the role of glassy domains on the excellent mechanical performance of the nanocomposites. Here, we unveil and visualize the atomic-sca

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Lee, Kyu Ho, Young Seok Kim, Tae Ho Kim, Young Joon Jung, H. J. Chin, and Bong Ki Ryu. "Optical Property of Hybrid Material Including Crystalline in Amorphous Matrix." Materials Science Forum 569 (January 2008): 157–60. http://dx.doi.org/10.4028/www.scientific.net/msf.569.157.

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This paper presents results and observations obtained from a study of crystallization effect on optical property by doping Sm2O3 in amorphous material. The heat treatments, according to Differential Thermal Analyzer (DTA) results, have been performed in order to generate crystallization of amorphous material. The crystalline phase has been analyzed by X-Ray Diffractor (XRD). In this work, we have observed the emission intensity changes by increasing the concentration of Sm3+ ions up to 1.0mol%. As a result, we have confirmed the solubility of RE dopant in this composition glass by comparing th

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27

Bukowczan, Artur, Edyta Hebda, Maciej Czajkowski, and Krzysztof Pielichowski. "The Synthesis and Properties of Liquid Crystalline Polyurethanes, Chemically Modified by Polyhedral Oligomericsilsesquioxanes." Molecules 24, no. 22 (2019): 4013. http://dx.doi.org/10.3390/molecules24224013.

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In this work, we report for the first time on the influence of polyhedral oligomericsilsesquioxanes (POSS) on the structure and properties of liquid crystalline polyurethane (LCPU). LCPU/POSS hybrids were synthesized via a two-step method. In the first step, 4,4′-methylenephenyl diisocyanate (MDI) and polytetramethylene ether glycol (PTMG) reacted with functionalized trisilanolphenyl POSS (TSP-POSS) bearing three hydroxyl groups. In the second step, the growing chain was extended with 4,4′-bis(hydroxyhexoxy)biphenyl (BHHBP). FTIR measurements confirmed the chemical bonding between the POSS and

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28

Raabe, Dierk, A. Al-Sawalmih, P. Romano, et al. "Structure and Crystallographic Texture of Arthropod Bio-Composites." Materials Science Forum 495-497 (September 2005): 1665–74. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1665.

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In this study we present experimental investigations on the microscopic structure, constituent phases, and crystallographic textures of the exoskeleton of three types of decapod crustaceans, namely, lobster, crab, and horseshoe crab. The carapace of such animals is a biological multiphase nano-composite consisting of an organic matrix (crystalline chitin and non-crystalline proteins) and biominerals (calcite, phosphate). The synchrotron measurements of the crystalline chitin and of the biominerals which are embedded in the chitin-protein matrix (in case of lobster and crab) reveal strong textu

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29

Zhang, Wen Jie, and Jin Lei Chen. "Effects of Calcination Time on Structure and Morphology of Porous TiO₂-Al₂O₃ Material." Advanced Materials Research 496 (March 2012): 161–64. http://dx.doi.org/10.4028/www.scientific.net/amr.496.161.

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Porous TiO2-Al2O3 composites were prepared through sol-gel method after calcination at 500 oC for different time. PEG1000 was used as a template and tetrabutyl titanate and aluminum isopropoxide were used as the precursors. The materials prepared under different calcination temperatures were all composed of anatase TiO2 and amorphous Al2O3. All the samples presented anatase TiO2 crystalline structure. There was no rutile TiO2 phase appearing in the patterns. Meanwhile, there were no noticeable diffraction peaks of any of crystalline phases of Al2O3. Calculated from Scherrer formula on (101) pl

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Parkin, Don M., and Reed O. Elliott. "The thermal fission-induced crystalline-to-amorphous transformation in U6Fe." Journal of Materials Research 3, no. 3 (1988): 453–60. http://dx.doi.org/10.1557/jmr.1988.0453.

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The crystalline-to-amorphous transformation in U6Fe produced by thermal fission fragment damage was studied using resistivity and differential scanning calorimetry. The results are described in terms of a model of radiation-produced defect buildup in the crystalline matrix followed by transformation of small regions to an amorphous phase when a critical local defect concentration is reached. This can occur directly in a single cascade or from cascade overlap. The total resistivity is modeled assuming an inhomogeneous media consisting of a crystalline matrix containing a dose-dependent concentr

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Shchekin, Alexander I., Vladimir A. Vasiliev, Alexander S. Nikolaychenko, and Andrey V. Kolomiytsev. "Field classification of fractured reservoirs of crystalline basement." Georesursy 23, no. 3 (2021): 90–98. http://dx.doi.org/10.18599/grs.2021.3.12.

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Development of oil and gas deposits in fractured reservoirs entails certain risks due to peculiarities of geological structure. Classification and identification of fractures in reservoirs is of high-priority importance and makes it possible to assess the impact of both fractured systems and matrix blocks on field development parameters. This article presents the results of statistical and qualitative analysis of the influence of fracture systems and fracture heterogeneity to classify reservoirs in crystalline basement granitoids using the example of the White Tiger (Bach Ho) and Dragon (Rong)

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Negishi, Hashiru, Satoshi Abe, Keitaro Yamashita, et al. "Supramolecular protein cages constructed from a crystalline protein matrix." Chemical Communications 54, no. 16 (2018): 1988–91. http://dx.doi.org/10.1039/c7cc08689j.

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33

Boninsegni, Massimo. "Theoretical study of H2in a two-dimensional crystalline matrix." New Journal of Physics 7 (March 12, 2005): 78. http://dx.doi.org/10.1088/1367-2630/7/1/078.

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Husberg, O., H. Vogelsang, and W. von der Osten. "Confined excitons in AgI nanocrystals in crystalline KI matrix." Journal of Luminescence 96, no. 2-4 (2002): 155–62. http://dx.doi.org/10.1016/s0022-2313(01)00232-0.

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35

Padaki, S., and L. T. Drzal. "Autohesive strength characterization of semi-crystalline polymer matrix composites." Composite Interfaces 4, no. 3 (1996): 133–42. http://dx.doi.org/10.1163/156855496x00218.

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36

Yordanova, Aneliya, Margarita Milanova, Lyubomir Aleksandrov, et al. "Preparation of Glass-Ceramic Materials by Controlled Crystallization of Eu2O3-Doped WO3-B2O3-La2O3 Glasses and Their Luminescent Properties." Molecules 30, no. 4 (2025): 832. https://doi.org/10.3390/molecules30040832.

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In this paper, the crystallization behavior of 52WO3:22B2O3:26La2O3:0.5Eu2O3 glass has been investigated in detail by XRD and TEM analysis. The luminescent properties of the resulting glass-ceramics were also investigated. By XRD and TEM analysis, crystallization of β-La2W2O9 and La2WO6 crystalline phases has been proved. Photoluminescent spectra showed increased emission in the resulting glass-ceramic samples compared to the parent glass sample due to higher asymmetry of Eu3+ ions in the obtained crystalline phases, where the active Eu3+ ions are incorporated. Also, in the glass-ceramics, the

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Dippong, Thomas, Oana Cadar, and Erika Andrea Levei. "Effect of Transition Metal Doping on the Structural, Morphological, and Magnetic Properties of NiFe2O4." Materials 15, no. 9 (2022): 2996. http://dx.doi.org/10.3390/ma15092996.

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Sol-gel route followed by thermal treatment was used to produce NiFe2O4 doped with transition metal ions (Zn2+, Mn2+, Co2+). The structural, morphological, and magnetic properties of the doped NiFe2O4 were compared with those of virgin NiFe2O4. The metal-glyoxylates’ formation and decomposition as well as the thermal stability of the doped and virgin ferrites were assessed by thermal analysis. The functional groups identified by Fourier-transform infrared spectroscopy confirmed the decomposition of metal nitrates, the formation and decomposition of precursors, and the formation of the SiO2 mat

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Karpov, O. N., Ya I. Derikov, A. V. Finko, et al. "Introduction of CdSe/ZnS Quantum Dots into Liquid Crystalline Matrix." Liquid Crystals and their Application 23, no. 3 (2023): 23–35. http://dx.doi.org/10.18083/lcappl.2023.3.23.

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An important aspect of modern materials science, namely the possibility of combining inorganic nanoparticles and liquid crystals in composite materials is discussed. These systems make it possible to combine liquid crystal properties of matrix and luminescent properties of quantum dots. A five-component mixture consisting mainly of 4-cyanobiphenyl derivatives used as a matrix. The substitution of ligands formed during the synthesis of quantum dots with derivatives of organic acids is shown. Using two new optically active ligands, the chiralization of the nematic matrix was demonstrated by intr

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Kalistratova, L., and A. Kireev. "Ordering and density amorphous phase of carbon-fiber polymer matrix PTFE-composites." Bulletin of Science and Practice 4, no. 1 (2018): 137–44. https://doi.org/10.5281/zenodo.1147146.

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We studied the application of a mathematical model for calculating the X–ray density of a pure amorphous–crystalline polymer, taking into account the degree of ordering, crystallinity and deformation of a crystalline cell in the amorphous phase, to carbon–fiber PTFE–composites. By comparing the theoretical densities (based on the developed software) of PTFE+CF–composites system with the results of experimental densities and X–ray structural parameters, it was shown that the degree of ordering and density of the amorphous phase of the polymer–matrix PTF

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Poller, Andreas, Georg Resele, Christian Missal, Nils Dahlhaus, and Marie Voss. "Semi-analytical approach to modelling matrix diffusion in fractured media." Safety of Nuclear Waste Disposal 2 (September 6, 2023): 163. http://dx.doi.org/10.5194/sand-2-163-2023.

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Abstract. The German Site Selection Act (StandAG, 2017) mentions crystalline rock as one of the candidate host rocks for the deep geological disposal of high-level radioactive waste (HAW). Crystalline rock is generally interspersed with fractures and other permeable structures, thus allowing for substantial water flow even at depths of a few hundred metres, where a deep geological repository for HAW may be situated. Radionuclides that become mobile in case of disposal canister failure could then migrate along fractures, thus potentially causing a relevant release of radionuclides from the barr

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Chung, Chen Yuan. "A Micro Constitutive Model for Ultra-High Molecular Weight Polyethylene Orthopaedic Implant Bearings." Defect and Diffusion Forum 382 (January 2018): 201–7. http://dx.doi.org/10.4028/www.scientific.net/ddf.382.201.

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Ultra-high molecular weight polyethylene (UHMWPE) is a tough semi-crystalline polymer employed widely as a bearing material in total joint replacements. The micromechanical model has been presented that predicts stiffness of UHMWPE as an aggregate of crystalline inclusions (lamellae) embedded in a rubbery matrix of amorphous polymer chains. The differential scheme was chosen for its ability to represent the interaction between an inclusion and the matrix. Numerical simulations show that increasing lamellar thickness results in less stiffness, less shear stress imposed on the lamellae, indicate

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Jithesh, K., T. Ram Prabhu, R. V. Anant, et al. "An Overview of Quasicrystal Reinforced Magnesium Metal Matrix Composites." Materials Science Forum 969 (August 2019): 218–24. http://dx.doi.org/10.4028/www.scientific.net/msf.969.218.

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The strength of metals and their alloys are enhanced by adding secondary reinforcement particles like Conventional crystalline and non-crystalline particles such as SiC, glass and Al2O3. These particles provide weak interfacial bonding due to the crystallographic structure mismatch or undesirable interface reaction products. Quasicrystals provide strong interfaces with the matrix due to their low interfacial energy. Their low strength and stiffness make them useful in non-critical stress applications such as instrument panels, seat frames and gear box housings. Reinforcing quasicrystals to Mg

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Libera, M. "Textured crystallization of germanium telluride." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 24–25. http://dx.doi.org/10.1017/s0424820100120527.

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Phase-change optical storage uses a focused laser to locally switch a chalcogenide film between the crystalline and amorphous states. Data bits are stored as amorphous spots in a crystal matrix. They can be erased by laser annealing, but applications require fast crystallization during the erase. The crystallization kinetics are not well understood. A recent study of germanium telluride (GeTe) used time-resolved optical measurements and TEM to show that crystallization in Ge48Te52 films is dominated by the 2-D growth of crystallites in the film plane. Current work relates the complex crystalli

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Walton, Ian M., Jordan M. Cox, Cassidy A. Benson, Dinesh (Dan) G. Patel, Yu-Sheng Chen, and Jason B. Benedict. "The role of atropisomers on the photo-reactivity and fatigue of diarylethene-based metal–organic frameworks." New Journal of Chemistry 40, no. 1 (2016): 101–6. http://dx.doi.org/10.1039/c5nj01718a.

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Sukhova, O. V., and Yu V. Syrovatko. "Contact interaction at the composites interfaces between the microcrystalline particulate and the molten matrix." Journal of Physics and Electronics 26, no. 2 (2018): 29–32. http://dx.doi.org/10.15421/331819.

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The peculiarities in structure formation of interfacial zones at the composite’s boundaries between the molten Fe–C–B–P–Mo matrix and the filler’s solid phases of W2C and WC that have microcrystalline structure were investigated in this work. The structure of the interfaces was studied by methods of metallographic and automatized quantitative analyses. The interfaces of dissolution-and-diffusion type were observed between the matrix and the filler. A dissolution rate of the filler’s microcrystalline phases of W2C and WC was shown to decrease by ~ 1.7–1.8 times as against that of the crystallin

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WANG, J. J., W. F. ZHAO, J. G. HE, Z. P. DONG, and R. LI. "SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC LIQUID CRYSTALLINE POLYESTER/MULTI-WALLED CARBON NANOTUBE NANOCOMPOSITES." Nano 04, no. 06 (2009): 339–44. http://dx.doi.org/10.1142/s1793292009001915.

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A thermotropic liquid crystalline polymer (TLCP) was synthesized from 4, 4'-Oxobisbenzoic acid and methylhydroquinone by low-temperature solution polycondensation. Nanocomposites of TLCP with the content of MWNTs from 0 wt% to 10 wt% were prepared by in situ polymerization. Scanning electron microscopy images showed that the MWNTs were well-separated in the TLCP matrix. Differential scanning calorimetry, thermogravimetric analyzer, X-ray diffraction, and polarized optical microscopy were used to investigate the thermal behavior, crystalline structure and liquid crystalline properties of the pu

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Jedrecy, N., M. Hamieh, C. Hebert, and J. Perriere. "High magnetoresistance at low magnetic fields in self-assembled ZnO–Co nanocomposite films." Nanoscale 9, no. 29 (2017): 10431–39. http://dx.doi.org/10.1039/c7nr02236k.

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Ma, Yuanyu, Minglu Liu, Abbas Jaber, and Robert Y. Wang. "Solution-phase synthesis and thermal conductivity of nanostructured CdSe, In2Se3, and composites thereof." Journal of Materials Chemistry A 3, no. 25 (2015): 13483–91. http://dx.doi.org/10.1039/c5ta02755a.

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Possenti, Elena, Claudia Conti, G. Diego Gatta, Marco Merlini, Marco Realini та Chiara Colombo. "Synchrotron radiation μ X-ray diffraction in transmission geometry for investigating the penetration depth of conservation treatments on cultural heritage stone materials". Analytical Methods 12, № 12 (2020): 1587–94. http://dx.doi.org/10.1039/d0ay00010h.

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Johnson, Erik, Sergei Prokofjev, Victor Zhilin, and Ulrich Dahmen. "Diffusional behavior of nanoscale lead inclusions in crystalline aluminum." International Journal of Materials Research 96, no. 10 (2005): 1171–80. http://dx.doi.org/10.1515/ijmr-2005-0202.

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Abstract In-situ transmission electron microscopy (TEM) observations reveal a permanent chaotic motion of nanosized liquid Pb inclusions embedded in thin aluminum foils. Individual trajectories of the inclusions were analysed to determine the character of their motion. The inclusions moving freely inside a crystal display motion with three-dimensional random walk characteristics while inclusions attached to dislocations display spatially confined random motion localized to the close vicinity of the dislocation lines. The diffusion coefficients of inclusions moving freely in the matrix were det

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