Intercalated Nanocomposites Based on High-Temperature Superconducting Ceramics and Their Properties

Tonoyan, A. O.; Schiсk, Christoph; Davtyan, S. P.

doi:10.3390/ma2042154

Cited by 7 publications

(4 citation statements)

References 28 publications

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“…Frontal polymerization (FP) is a synthetic technique that allows the conversion of monomer into polymer by formation and consequent propagation of a hot polymerization front, able to self‐sustain and propagate throughout the monomeric mixture. This technique allows obtaining polymer materials by a simple reaction route, short time, and low energy consumption …”

Section: Introductionmentioning

confidence: 99%

Effect of limonene on the frontal ring opening metathesis polymerization of dicyclopentadiene

Alzari

Nuvoli

Sanna

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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The frontal ring opening metathesis polymerization (FROMP) of dicyclopentadiene (DCPD) in the presence of limonene, using second generation Grubbs’ catalysts, is reported. The effect of limonene on the amount of catalyst and the typical frontal polymerization parameters, as maximum temperature (Tmax) and velocity of the front (Vf), is studied. In addition, the influence of limonene on the mechanical properties of the polymeric samples is reported. Finally, a deep study on the swelling properties of polymers is done. It has been demonstrated that limonene acts as both inhibitor and solvent of the catalyst. The Tmax, Vf, Tg, and Young modulus values decrease as the amount of limonene increases, and the polymer samples swell in THF depending on the amount of limonene. All results indicate that the limonene addition on FROMP of results in advantages on the polymerization reaction and its parameters and on the final polymer properties. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 63–68

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Section: Introductionmentioning

confidence: 99%

Effect of limonene on the frontal ring opening metathesis polymerization of dicyclopentadiene

Alzari

Nuvoli

Sanna

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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“…The critical transition temperature occurs in the pure sample at 88K and T 0 at 78K. A short gap between T c & T 0 indicates that there is good grain connectivity and also low resistance between the surface of the coupled grains [12,13]. The higher the slope in the normal state of the sample, the better the superconducting behavior.…”

Section: Resultsmentioning

confidence: 99%

“…Inherently weak mechanical properties of monolithic high-temperature superconductors can be improved by processing the superconductor into a composite. A number of polymer superconducting ceramic compositions using thermoplastic and reactoplastic polymeric matrices are described in the literature [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites Based on High-T<sub>c</sub> Superconducting Ceramic 2212 BSCCO and their Properties

Jayasree¹,

Predeep²

2014

AMR

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High temperature superconducting (SC) 2212 BiSrCaCuO nanoparticles were prepared by Sol-Gel method. Precursor was characterized by X-ray diffraction (XRD) and scanning Electron micrography. The superconductor nanocomposites were fabricated by nanoparticles of the SC powder with NR/LLDPE blends. The superconductive properties of the sintered samples and the nanocomposites were studied. Transition to a superconducting state around 88K appeared in the parent sample and in the composites. The scanning electron microscopic investigation of the nanostructures of SC polymer ceramic nanocomposites shown nanoscale dispersion of BSCCO in the polymer phase uniformly.

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“…Moreover, a wide majority of these characterization techniques have been used to assess the nanoreinforcement distribution on a qualitative basis only, providing no means to quantify the extent of distribution, which is highly desirable for a more effective and reliable prediction of bulk mechanical properties of the nanocomposite. Although excellent review papers were published on the processing, characterization, and properties of polymer matrix nanocomposites [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ], less literature is available on metal and ceramic matrix nanocomposites [ 1 , 2 , 9 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. On top of that, the issue of nanoreinforcement dispersion in metal and ceramic nanocomposites was not fully addressed.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Nanoreinforcement Dispersion in Inorganic Nanocomposites: A Review

et al. 2014

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Metal and ceramic matrix composites have been developed to enhance the stiffness and strength of metals and alloys, and improve the toughness of monolithic ceramics, respectively. It is possible to further improve their properties by using nanoreinforcement, which led to the development of metal and ceramic matrix nanocomposites, in which case, the dimension of the reinforcement is on the order of nanometer, typically less than 100 nm. However, in many cases, the properties measured experimentally remain far from those estimated theoretically. This is mainly due to the fact that the properties of nanocomposites depend not only on the properties of the individual constituents, i.e., the matrix and reinforcement as well as the interface between them, but also on the extent of nanoreinforcement dispersion. Therefore, obtaining a uniform dispersion of the nanoreinforcement in the matrix remains a key issue in the development of nanocomposites with the desired properties. The issue of nanoreinforcement dispersion was not fully addressed in review papers dedicated to processing, characterization, and properties of inorganic nanocomposites. In addition, characterization of nanoparticles dispersion, reported in literature, remains largely qualitative. The objective of this review is to provide a comprehensive description of characterization techniques used to evaluate the extent of nanoreinforcement dispersion in inorganic nanocomposites and critically review published work. Moreover, methodologies and techniques used to characterize reinforcement dispersion in conventional composites, which may be used for quantitative characterization of nanoreinforcement dispersion in nanocomposites, is also presented.

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Intercalated Nanocomposites Based on High-Temperature Superconducting Ceramics and Their Properties

Cited by 7 publications

References 28 publications

Effect of limonene on the frontal ring opening metathesis polymerization of dicyclopentadiene

Effect of limonene on the frontal ring opening metathesis polymerization of dicyclopentadiene

Nanocomposites Based on High-T<sub>c</sub> Superconducting Ceramic 2212 BSCCO and their Properties

Characterization of Nanoreinforcement Dispersion in Inorganic Nanocomposites: A Review

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