Bibliografie tematiche / Dielectrical properties / Articoli di riviste
Segui questo link per vedere altri tipi di pubblicazioni sul tema: Dielectrical properties.

Articoli di riviste sul tema "Dielectrical properties"

Autore: Grafiati
Pubblicato: 5 ottobre 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Dielectrical properties".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Zang, Chong Guang, e Xian Peng Cao. "PANI / MWNTs / EP Composite Microwave Absorbing Coatings Dielectrical and Microwave Absorbing Properties Analysis". Applied Mechanics and Materials 303-306 (febbraio 2013): 2477–80. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2477.

Testo completo
Abstract (sommario):
In this paper, the polyaniline (PANI) coated multi-walled carbon nanotubes (MWNTs) was prepared in situ polymerization. Adding PANI/MWNTs into epoxy resin（EP）, we got PANI / MWNTs / EP composite microwave absorbing materials. Through testing permittivity 、permeability and reflection loss of materials, the paper showed the effect of PANI/MWNTS to the dielectrical and microwave absorbing properties of materials.The results showed： PANI/MWNTs had great effect on dielectrical and microwave absorbing properties of materials. But the imaginary permeability was close to 0. That indicated that it mainly consumed electromagnetic wave by dielectric loss. In 200-1000MHZ, materials had better absorbing property and lower reflection loss (-13.6).
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Jayamani, Elammaran, e Muhammad Khusairy bin Bakri. "Preliminary Study on the Acoustical, Dielectric and Mechanical Properties of Sugarcane Bagasse Reinforced Unsaturated Polyester Composites". Materials Science Forum 890 (marzo 2017): 12–15. http://dx.doi.org/10.4028/www.scientific.net/msf.890.12.

Testo completo
Abstract (sommario):
In this research, the alkaline treated and untreated sugarcane bagasse was used as reinforcement with unsaturated polyester to make composites. The composites were made with 0 to 20 weight percentage of fibers using compression molding. Acoustical, dielectrical and mechanical properties of the composites were studied according to the American Society for Testing Materials (ASTM) standards. The result shows that the composites with higher sugarcane bagasse loading show higher acoustical and dielectrical properties. The composites tensile strength increased up to 10wt% of fiber loading and then starts decreasing eventually. Tensile strength and sound absorption coefficients of alkali treated fiber composites shown slightly better results than untreated fiber composites. The dielectric constant of treated fiber composites were lower compared with untreated fiber composites.
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Mobarak, Youssef, M. Bassyouni e M. Almutawa. "Materials Selection, Synthesis, and Dielectrical Properties of PVC Nanocomposites". Advances in Materials Science and Engineering 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/149672.

Testo completo
Abstract (sommario):
Materials selection process for electrical insulation application was carried out using Cambridge Engineering Selector (CES) program. Melt mixing technique was applied to prepare polyvinyl-chloride- (PVC-) nanofumed silica and nanomontmorillonite clay composites. Surface analysis and particles dispersibility were examined using scanning electron microscope. Dielectrical properties were assessed using Hipot tester. An experimental work for dielectric loss of the nanocomposite materials has been investigated in a frequency range of 10 Hz–50 kHz. The initial results using CES program showed that microparticles of silica and clay can improve electrical insulation properties and modulus of elasticity of PVC. Nano-montmorillonite clay composites were synthesized and characterized. Experimental analyses displayed that trapping properties of matrix are highly modified by the presence of nanofillers. The nanofumed silica and nanoclay particles were dispersed homogenously in PVC up to 10% wt/wt. Dielectric loss tangent constant of PVC-nanoclay composites was decreased successfully from 0.57 to 0.5 at 100 Hz using fillers loading from 1% to 10% wt/wt, respectively. Nano-fumed silica showed a significant influence on the electrical resistivity of PVC by enhancing it up to 1 × 1011 Ohm·m.
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Skipina, Blanka, Dusko Dudic, Dusan Kostoski e Jablan Dojcilovic. "Dielectrical properties of composites LDPE+CB". Chemical Industry 64, n. 3 (2010): 187–91. http://dx.doi.org/10.2298/hemind091221035s.

Testo completo
Abstract (sommario):
There is currently great interest in the technological properties of conductive polymer composites because their cost-performance balance. They have a wide range of industrial applications -in anti-static materials, self regulating heaters, current overload and overheating protection devices, and materials for electromagnetic radiation shielding. Measurements of the electrical properties of polymer composites are one of the most convenient and sensitive methods for studying polymer structure. A polymer composite differs substantially from a free polymer in a wide range of properties. The presence of filler affects both the electrical, as well as mechanical properties. One of the most important characteristics of conductive polymer composites is that their electrical conductivity increases nonlinearly with the increase of the concentration of filler particles. When the concentration of filler particles reaches a certain critical value, a drastic transition from an electrical insulator to a conductor is exhibited. This conductivity behavior resulting in a sudden insulator-conductor transition is ascribed to a percolation process, and the critical filler concentration at which the conductivity jump occurs is called ?percolation threshold?. In the past few years, a lot of studies have been carried out to analyze the percolation phenomenon and mechanisms of the conductive behavior in conductive polymer composites. It has been established that the electrical conductivity of conductive polymer composites uncommonly depends on the temperature. Some of such composites show a sharp increase and/or decrease in electrical conductivity at specific temperatures. The conductive temperature coefficient (CTC) of conductive polymer composites has been widely investigated. In these work we investigated how concentration of the CB affects the dielectrical properties of the composite LDPE+CB. The ac electrical conductivity, ?ac, for such composites was measured. The temperature and frequency dependence of the dissipation factor were analyzed. It was found that the ac conductivity and dissipation factor were highly affected by the concentration of the filler.
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Haddour, Lillia, Mourad Keddam e Nadir Mesrati. "Relationships between Microstructure and Mechanical Properties of Polycristalline Alumina". Applied Mechanics and Materials 625 (settembre 2014): 192–95. http://dx.doi.org/10.4028/www.scientific.net/amm.625.192.

Testo completo
Abstract (sommario):
Some low purity alumina ceramics with an alumina content ranging from 86% to 93% were investigated, in order to explore the effects of microstructural parameters (grain size, intergranular phase) on mechanical (wear) and dielectrical parameters. The microstructure and worn surfaces were analysed using scaning electron microscopy. The correlation between microstructural, dielectrical properties and wear is discussed. It has been proposed that mechanical and electrical properties are two aspects of the same fundamental mechanism. Key words: Al2O3, Microstructure final, Wear resistance, Breakdown.
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Soni, Neha, Nikita Karma, Lalit Kumar Bhataniya, Paras Dubey e Netram Kaurav. "Investigation of Structural and Dielectric Properties of Sr doped LaCrO3Synthesized by Auto-Combustion Method". Journal of Physics: Conference Series 2603, n. 1 (1 ottobre 2023): 012027. http://dx.doi.org/10.1088/1742-6596/2603/1/012027.

Testo completo
Abstract (sommario):
Abstract We synthesized the undoped lanthanum chromium oxide, LaCrO3 (LCO), and Strontium (Sr) doped La1-xSrxCrO3 (x=0.1) perovskite compounds using auto-combution method. X-ray Diffraction technique reveals that both the samples possess Cubic crystal structure with Pm-3m space group. Furthermore, room temperature dielectrical properties of both the samples were emphasized. Dielectric constant and loss value of both the samples decreases as frequency increases attributed to Maxwell-Wagner type of relaxation.
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Kang, Jie, Gui Xia Dong e Qiu Xiang Liu. "Research on Properties of AlN-Mo Composite Ceramic". Advanced Materials Research 482-484 (febbraio 2012): 1695–98. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1695.

Testo completo
Abstract (sommario):
With CaF2 and CaCO3 as sintering additives, AlN-Mo composite was prepared using hot pressed sintering technique. The phase composition and morphology of AlN-Mo composite ceramics were analyzed using XRD and SEM, respectively. The experimental results show that when CaF2 and CaCO3 additives is in a range of 1~3wt%, the thermal conductivity AlN-Mo composites increases with increasing of the CaF2 content; With the increasing of CaCO3 content, first increases and then decreases. Sintering additives in a certain type and content, the thermal conductivity of AlN-Mo composite ceramics with 20 vol% Mo is higher than containing 18 vol% Mo. The dielectrical property of AlN-Mo composite ceramics was also discussed. The addition of CaF2 can decrease the dielectric constant of AlN-Mo composite ceramics.
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Maurya, M. K. "Study of Dielectric Properties of Typical Electrical Insulating Materials by Terahertz Wave Spectroscopy". International Journal for Research in Applied Science and Engineering Technology 12, n. 8 (31 agosto 2024): 632–40. http://dx.doi.org/10.22214/ijraset.2024.63973.

Testo completo
Abstract (sommario):
Abstract: This research paper uses a special kind of light is called terahertz waves to study the properties of materials that prevent electricity from flowing, like plastics and glass. Dielectrical insulating materials play an important role in the Insulation coordination of electric power systems such as transformers and high Voltage power cable. Dielectric insulating materials are evaluated based on their dielectric constant, dielectric strength, loss tangent, and thermal stability. The dielectric constant determines the material's ability to store electrical energy, while the dielectric strength indicates the maximum electric field the material can withstand without breaking down. The loss tangent measures energy dissipation as heat, which is crucial for minimizing energy losses in electrical systems. Terahertz (THz) wave spectroscopy has emerged as a powerful technique for the non-destructive evaluation of dielectric properties in electrical insulating materials. This study investigates the application of THz time-domain spectroscopy (THz-TDS) for characterizing typical insulating materials such as polyethylene (PE), polytetrafluoroethylene (PTFE), and epoxy resins. This research can help improve the design and performance of electrical devices, making them safer, more efficient, and more reliable.
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Journal, Baghdad Science. "Investigation of the dielectric Properties of (PPAB) terminated by phenylenediamine doped by Na2[Fe(CN)5.NO].2H2O using Lumped equivalent circuit". Baghdad Science Journal 13, n. 1 (6 marzo 2016): 174–82. http://dx.doi.org/10.21123/bsj.13.1.174-182.

Testo completo
Abstract (sommario):
The aim of this paper is to demonstrate the effect of Na2[Fe(CN)5.NO].2H2O impurity (0.1 M) concentration on the dielectrical properties of poly (P-Aminobenzaldehyde) terminated by pheneylenediamine in the frequency and temperature ranges (1-100)KHz and (283-348) K respectively.These properties include dissipation factor, series and parallel resistance, series and parallel capacitance, real and imaginary part of the dielectric constant, a.c conductivity and impedance (real and imaginary) part, that have been deduced from equivalent circuit. The investigation shows that adding Na2[Fe(CN)5.NO].2H2O as additive to the polymer lead to increase of the dielectric constant with increasing temperature and it is decreasing with increasing the frequency .The dissipation factor is increasing with as the frequency increased.
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Turky, Ali Omar, Mohamed Mohamed Rashad, Zaki Ismail Zaki, Ibrahim Ahmed Ibrahim e Mikhael Bechelany. "Tuning the optical and dielectric properties of calcium copper titanate CaxCu3−xTi4O12 nanopowders". RSC Advances 5, n. 24 (2015): 18767–72. http://dx.doi.org/10.1039/c4ra15222k.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
11

Najeeb, Hussein Neama. "Dielectrical and electrical properties of PVA-NaI composites". Iraqi Journal of Physics (IJP) 11, n. 22 (20 febbraio 2019): 56–63. http://dx.doi.org/10.30723/ijp.v11i22.353.

Testo completo
Abstract (sommario):
The electrical characteristics of polyvinyl alcohol PVA doped with different concentrations (0, 1, 2, 3 and 4wt%) of sodium iodide NaI powder were studied. The films are prepared using solution casting technique, in order to investigate the effect of sodium iodide NaI additions on the electrical properties of PVA host. The D.C conductivity measured by measuring the D.C electrical resistance using the Keithly Electrometer type 616C, and for different temperatures ranging from 30 – 70oC. The dielectric properties measured by measuring the capacitor and the loss angle tangent as a function of the alternating electric field frequency using the Agilent impedance analyzer 4294A, within the frequency range 50 – 6 ×106 Hz at room temperature. The experimental results showed that the dielectric constant is decrease with increase frequency of applied electrical field and increase with increasing concentrations, dielectric loss is increase with increasing frequency of applied electrical field to be 1MHz after this it was decreasing, A.C electrical conductivity are increasing with increasing frequency of applied electrical field, also, the results showed that the D.C electrical conductivity are increasing with increase concentration of NaI and temperature, activation energy are decreasing with increase concentration of additive salt.
Gli stili APA, Harvard, Vancouver, ISO e altri
12

Gu, Hongbo, Yudong Huang, Xi Zhang, Qiang Wang, Jiahua Zhu, Lu Shao, Neel Haldolaarachchige, David P. Young, Suying Wei e Zhanhu Guo. "Magnetoresistive polyaniline-magnetite nanocomposites with negative dielectrical properties". Polymer 53, n. 3 (febbraio 2012): 801–9. http://dx.doi.org/10.1016/j.polymer.2011.12.033.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
13

Laboranti, L. M., E. R. Mognaschi, G. Gozzelino e A. Priola. "Dielectrical properties of u.v. cured acrylated polysiloxane films". Journal of Materials Science 30, n. 6 (marzo 1995): 1473–79. http://dx.doi.org/10.1007/bf00375251.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
14

İÇİER, FILIZ, e TANER BAYSAL. "Dielectrical Properties of Food Materials—2: Measurement Techniques". Critical Reviews in Food Science and Nutrition 44, n. 6 (novembre 2004): 473–78. http://dx.doi.org/10.1080/10408690490892361.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
15

Zamiri, Reza, Hossein Abbastabar Ahangar, Ajay Kaushal, Azmi Zakaria, Golnoosh Zamiri, David Tobaldi e J. M. F. Ferreira. "Dielectrical Properties of CeO2 Nanoparticles at Different Temperatures". PLOS ONE 10, n. 4 (24 aprile 2015): e0122989. http://dx.doi.org/10.1371/journal.pone.0122989.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
16

Eissa. "Structural and Dielectrical Properties of Sterilized Human Teeth". Physics International 3, n. 1 (1 gennaio 2012): 22–27. http://dx.doi.org/10.3844/pisp.2012.22.27.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
17

Jeidd, Abddaim, Mohamed Amghar, A. Mabrouki, A. Benali, A. Trabelsi, E. Dhahri, K. Khirouni e B. F. O. Costa. "Study of physical properties of the Li0.5MgFe1.5O3.5 ferrite nanoparticles". RSC Advances 13, n. 19 (2023): 12906–16. http://dx.doi.org/10.1039/d2ra07970d.

Testo completo
Abstract (sommario):
In the present research study, the structural, optical, magnetic, electrical and dielectrical properties of the spinel ferrite Li0.5MgFe1.5O3.5, synthesized using a sol–gel auto-combustion method were studied.
Gli stili APA, Harvard, Vancouver, ISO e altri
18

Zhang, Yu, e Chuan Guo Ma. "Preparation and Electrical Properties of Aligned Carbon Nanotubes/Epoxy Resin Composites Induced by a Low Magnetic Field". Advanced Materials Research 189-193 (febbraio 2011): 1340–43. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.1340.

Testo completo
Abstract (sommario):
Aligned carbon nanotubes(CNTs)/epoxy resin(EP) composites were prepared under a low magnetic field (B<500mT) induction. The effect of different magnetic fields on the electrical and dielectrical properties of composites was investigated. The results show that the CNTs are aligned with rod-like aggregations instead of single CNTs when the magnetic field direction is vertical to the casting direction of samples, then electric conductivity, permittivity, dielectric loss of the composite are improved. And a larger magnetic field intensity and a bigger mould capacity can help the effect of magnetic field induction. However the CNTs are seriously aggregated and the electrical properties of composites change worse when the magnetic field direction is parallel to the casting direction of samples.
Gli stili APA, Harvard, Vancouver, ISO e altri
19

Rosaiah, P. "Synthesis, Electrical And Dielectrical Properties Of Lithium Iron Oxide". Advanced Materials Letters 4, n. 4 (1 aprile 2013): 288–95. http://dx.doi.org/10.5185/amlett.2012.8416.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
20

Lyashchenko, A. K., I. V. Balakaeva, Yu A. Simonova e L. M. Timofeeva. "Hydration and dielectrical properties of aqueous pyrrolidinium trifluoroacetate solutions". Russian Journal of Physical Chemistry A 91, n. 10 (20 settembre 2017): 1913–18. http://dx.doi.org/10.1134/s0036024417100247.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
21

Zamiri, Reza, Hossein Abbastabar Ahangar, Ajay Kaushal, Azmi Zakaria, Golnoosh Zamiri, David Tobaldi e J. M. F. Ferreira. "Correction: Dielectrical Properties of CeO2 Nanoparticles at Different Temperatures". PLOS ONE 10, n. 7 (2 luglio 2015): e0131851. http://dx.doi.org/10.1371/journal.pone.0131851.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
22

El-Ghamaz, N. A., A. Z. El-Sonbati, M. A. Diab, A. A. El-Bindary, M. K. Awad e Sh M. Morgan. "Dielectrical, conduction mechanism and thermal properties of rhodanine azodyes". Materials Science in Semiconductor Processing 19 (marzo 2014): 150–62. http://dx.doi.org/10.1016/j.mssp.2013.12.005.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
23

El-Ghamaz, N. A., E. M. El-Menyawy, M. A. Diab, A. A. El-Bindary, A. Z. El-Sonbati e S. G. Nozha. "Optical and dielectrical properties of azo quinoline thin films". Solid State Sciences 30 (aprile 2014): 44–54. http://dx.doi.org/10.1016/j.solidstatesciences.2014.02.005.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
24

Mat Sauki, Siti Syafiqah, Nor Asiah Muhamad e Zawani Amirah Rasid. "Virgin coconut oil dielectrical properties as electrical insulation material". Bulletin of Electrical Engineering and Informatics 8, n. 3 (1 settembre 2019): 1154–61. http://dx.doi.org/10.11591/eei.v8i3.1603.

Testo completo
Abstract (sommario):
Mineral oil played an important role as insulating liquid such as to reduce failure, ageing effect, increase the life span and heat transfer agent. Mineral oil had a good dielectric strength and cooling performance but it had serious negative environmental impact like non-biodegradable, non-renewable resource and difficult to dispose when it deteriorates completely. Hence, virgin coconut oil (VCO) was chosen as alternative to replace mineral oil since it biodegrades completely without toxic and easy to get in the tropical country. Three dielectric tests were conducted to investigate the dielectric properties of VCO. Those were breakdown voltage, water content and kinematic viscosity. A study about the effect of the moisture level of VCO on the breakdown voltage and kinematic viscosity was also presented. VCO and mineral oil also undergone heating process to reduce moisture in sample. The study showed that VCO has good potential breakdown voltage with the ability to absorb a lot of moisture keeping the KRAFT paper dry. However, VCO had very high kinematic viscosity compared to mineral oil. Further, the rate of breakdown voltage decreases with increasing of moisture of VCO was lower than mineral oil.
Gli stili APA, Harvard, Vancouver, ISO e altri
25

El-Menyawy, E. M., I. T. Zedan e A. M. Mansour. "Electrical Conductivity and Dielectrical Properties of Bulk Methylene Green". Journal of Electronic Materials 46, n. 7 (6 marzo 2017): 4353–58. http://dx.doi.org/10.1007/s11664-017-5414-z.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
26

Barreto, A. C. H., M. M. Costa, A. S. B. Sombra, D. S. Rosa, R. F. Nascimento, S. E. Mazzetto e P. B. A. Fechine. "Chemically Modified Banana Fiber: Structure, Dielectrical Properties and Biodegradability". Journal of Polymers and the Environment 18, n. 4 (9 giugno 2010): 523–31. http://dx.doi.org/10.1007/s10924-010-0216-x.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
27

Urbiztondo, M., S. Irusta, R. Mallada, M. P. Pina e J. Santamaría. "Evaluation of optical and dielectrical properties of the zeolites". Desalination 200, n. 1-3 (novembre 2006): 601–3. http://dx.doi.org/10.1016/j.desal.2006.03.437.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
28

Rahmouni, H., M. Smari, B. Cherif, E. Dhahri e K. Khirouni. "Conduction mechanism, impedance spectroscopic investigation and dielectric behavior of La0.5Ca0.5−xAgxMnO3 manganites with compositions below the concentration limit of silver solubility in perovskites (0 ≤ x ≤ 0.2)". Dalton Transactions 44, n. 22 (2015): 10457–66. http://dx.doi.org/10.1039/c5dt00444f.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
29

Bitenieks, Juris, Remo Merijs Meri, Janis Zicans e Mārtiņš Kalniņš. "Characterization of Polyvinyl Acetate/Multi Walled Carbon Nanotube Nanocomposites". Key Engineering Materials 721 (dicembre 2016): 13–17. http://dx.doi.org/10.4028/www.scientific.net/kem.721.13.

Testo completo
Abstract (sommario):
Nanocomposite films from polyvinyl acetate (PVAc) dispersion and multi walled carbon nanotubes (MWCNTs) were prepared by solution casting technique. Stress-strain properties showed increase in elastic modulus and yield strength. Mechanical properties characterized by dynamic mechanical thermal analysis represented increase in storage modulus below glass transition temperature. Studied dielectrical properties of PVAc/MWCNT nanocomposites revealed formation of conductive MWCNT network in PVAc matrix.
Gli stili APA, Harvard, Vancouver, ISO e altri
30

Spasović, Slavica, N. Paunović, D. Popović e Jablan Dojčilović. "Infrared and Dielectrical Properties of SrTiO3:Nd". Materials Science Forum 518 (luglio 2006): 471–76. http://dx.doi.org/10.4028/www.scientific.net/msf.518.471.

Testo completo
Abstract (sommario):
Far-infrared reflection spectra and results of dielectric measurements of SrTiO3 single crystal doped by neodymium are presented in the paper. Dielectric investigations were conducted at temperature range from 25 K to room temperature for the test frequency 1MHz. The numerical analysis of the far-infrared reflection spectra made using a fitting procedure based on factorized form of the dielectric function. The results for SrTiO3: Nd are compared with those for pure crystal. The lowest-frequency phonon mode is found to be strongly influenced by presence of neodymium ions in SrTiO3 single crystal.
Gli stili APA, Harvard, Vancouver, ISO e altri
31

EL-Ghamaz, N., E. Gaml e Hajar Abusnina. "Study on Structural and Dielectrical Properties of some Chloroquinoxaline Derivatives". Scientific Journal for Damietta Faculty of Science 10, n. 1 (1 dicembre 2020): 37–44. http://dx.doi.org/10.21608/sjdfs.2020.194998.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
32

Frickel, Natalia, Anna Gutina Greenbaum, Moshe Gottlieb e Annette M. Schmidt. "Magnetic Properties and Dielectrical Relaxation Dynamics in CoFe2O4@PU Nanocomposites". Journal of Physical Chemistry C 115, n. 22 (18 maggio 2011): 10946–54. http://dx.doi.org/10.1021/jp111348e.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
33

Hamza, Saidi, Asya Mhamdi, Walid Aloui, Abdelaziz Bouazizi e Kamel Khirouni. "Effect of illumination on the dielectrical properties of P3HT:PC70BM nanocomposites". Materials Research Express 4, n. 5 (2 maggio 2017): 055003. http://dx.doi.org/10.1088/2053-1591/aa6ac1.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
34

Kaygili, Omer, Serhat Keser, Sergey V. Dorozhkin, Fahrettin Yakuphanoglu, Ahmed A. Al-Ghamdi, Sevda Kirbag, Duygu Sertkaya, Tankut Ates e N. Canan Gursoy. "Structural and Dielectrical Properties of Ag- and Ba-Substituted Hydroxyapatites". Journal of Inorganic and Organometallic Polymers and Materials 24, n. 6 (3 settembre 2014): 1001–8. http://dx.doi.org/10.1007/s10904-014-0074-4.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
35

Sanchis, Maria J., Belén Redondo-Foj, Marta Carsí, Pilar Ortiz-Serna, Mario Culebras, Clara M. Gómez, Andrés Cantarero e Rafael Muñoz-Espí. "Controlling dielectrical properties of polymer blends through defined PEDOT nanostructures". RSC Advances 6, n. 66 (2016): 62024–30. http://dx.doi.org/10.1039/c6ra05597d.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
36

Yadav, S. P., S. S. Shinde, A. A. Kadam e K. Y. Rajpure. "Structural, morphological, dielectrical, magnetic and impedance properties of Co1−xMnxFe2O4". Journal of Alloys and Compounds 555 (aprile 2013): 330–34. http://dx.doi.org/10.1016/j.jallcom.2012.12.089.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
37

Sundarabharathi, Lakshmanaperumal, Mahendran Chinnaswamy, Hemalatha Parangusan, Deepalekshmi Ponnamma e Mariam Al Ali Al-Maadeed. "Cytocompatibility and Dielectric Properties of Sr2+ Substituted Nano-Hydroxyapatite for Triggered Drug Release". Frontiers in Advanced Materials Research 1, n. 1 (30 maggio 2019): 18–24. http://dx.doi.org/10.34256/famr1913.

Testo completo
Abstract (sommario):
Hydroxyapatite (Ca5(PO4)3OH) is a well-known bioceramics material used in medical applications because of its ability to form direct chemical bonds with living tissues. In this context, we investigate the biocompatibility and dielectric properties of Sr2+-substituted hydroxyapatite nanoparticles were synthesized by sol-gel method. The influence of strontium on the crystal structure, functional group, morphological, electrical properties, and biocompatibility of as-synthesized nano-hydroxyapatite samples was analyzed using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and field emission scanning electron microscopy (FE-SEM). Dielectrical properties of the bioactive Sr-HA sample were investigated by a dielectric impedance spectroscopy method. The observed results illustrate the incorporation of Sr2+ ions in the apatite lattice could influence the pure HA properties, by reducing the crystallite size and crystallinity quite consistent with the morphology variation. The ac conductivity (σac) increased with an increasing applied frequency confirmed that prepared HA sample exhibited the universal power law nature. Further, the in vitro drug loading and release studies using doxycycline as a model drug demonstrate that the Sr2+ -HA nanoparticles show high drug adsorption capacity and sustained drug release. Thus, the improved bioceramics system could be a promising candidate for future biomedical applications.
Gli stili APA, Harvard, Vancouver, ISO e altri
38

Banjuraizah, Johar, Mohd Haziq Che Ani e A. R. Mohamed. "Preparation and Structural Characterization of CaCu3Ti4O12 Doped with Nickel, Ferrite, Manganese and Cobalt". Advanced Materials Research 893 (febbraio 2014): 69–74. http://dx.doi.org/10.4028/www.scientific.net/amr.893.69.

Testo completo
Abstract (sommario):
Transition metal oxide-doped CCTO (CaCu3Ti4O12) ceramics were prepared by a conventional solgel synthesis method and the effects of pure CCTO and CCTO doped with Mn, Fe, Co, Ni to the crystal structure, microstructures and dielectrical properties of samples were investigated. The phase composition and microstructure were studied by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD analysis reveals that all samples exhibited multiphases with the pseudo-perovskite cubic CCTO phase with space group Im-3 as the main phase in undoped and doped CCTO samples. Peaks of monoclinic CuO and peroveskite CaTiO3 could also be seen in all samples which indicate that solid solution of CuO in CaTiO3 lattice was incomplete.SEM results show that doping effectively enhanced densification. SEM micrographs also suggested that the morphologies of doped CCTO ceramics had showed a matrix consisting of large grains wherein the small grains were embedded between the larger grains. Dielectric properties of pure and doped CCTO were investigated in a broad frequency range of the dielectric constant reached a value as high as εr = 29.4 at room temperature for CCTO doped with Ni at frequency (1000 Hz). Besides the sintering conditions, the microstructure and the dielectric properties of the CCTO are strongly influenced by type of doping elements.
Gli stili APA, Harvard, Vancouver, ISO e altri
39

Khan, K., e Ashari Maqsood. "Electrical, Dielectrical and Magnetic Properties of Zr-Mn Doped Nano-Ferrites". Key Engineering Materials 510-511 (maggio 2012): 301–6. http://dx.doi.org/10.4028/www.scientific.net/kem.510-511.301.

Testo completo
Abstract (sommario):
We measured the dc electrical resistivity as a function of temperature and dielectric parameters in the frequency range 100 Hz to 3 MHz of nanosized Zr-Mn spinel ferrites with nominal composition CoFe2-2xZrxMnxO4(0.1x0.4). The dc electrical resistivity decreased with the rise in temperature for all the samples, showing a semiconductor like behavior. From the dc electrical resistivity the activation energy and drift mobility are determined. Both the drift mobility and activation energy increase with a rise inx. The dielectric constant, dielectric (losses) and ac electrical resistivity as a function of frequency are also reported. The low field ac magnetic susceptibility measurement showed that the ferrimagentic transition temperature is in the range of 4395 K to 6585 K.
Gli stili APA, Harvard, Vancouver, ISO e altri
40

Abd, Abeer. "Studying the mechanical and electrical properties of epoxy with PVC and calcium carbonate filler". International Journal of Engineering & Technology 3, n. 4 (30 novembre 2014): 545. http://dx.doi.org/10.14419/ijet.v3i4.3425.

Testo completo
Abstract (sommario):
In the present research composite material was prepared from epoxy and PVC reinforced with calcium carbonate as a filler material with different percent weight ratios (0.6,1.2,1.8 and 2.4) g.The effect of different weight ratios of calcium carbonate particles and PVC different content on electrical permittivity , dielectrical loss constant, hardness ,young modulus and compression strength were studied. Electrical properties of these composites were investigated by using Fourier transform infrared spectroscopy (FTIR) to study the bonds which enhanced the insulating properties of epoxy material compounded with filler and PVC. The inclusion of CaCO3 in epoxy and (PVC) polymer matrices greatly enhances the physical and mechanical properties of the composite.The experimental results also show that sample (5) compounded with 2.4 g of Calcium Carbonate has the minimum dielectric loss therefore it had the best insulating properties. The compression strength, young modulus, hardness decrease with filler content increase and PVC compound decreased. The maximum electrical permittivity in sample (3) compounded with 1.2 g of calcium carbonate and 4.8 g of PVC. Cost also can be reduced by the addition of filler material.
Gli stili APA, Harvard, Vancouver, ISO e altri
41

Najeeb, Hussein Neama. "Dielectrical and Electrical Properties of Polystyrene films Doped with Copper Sulfate". University of Thi-Qar Journal of Science 4, n. 4 (10 luglio 2014): 181–86. http://dx.doi.org/10.32792/utq/utjsci/v4i4.689.

Testo completo
Abstract (sommario):
The electrical characteristics of polystyrene doped with different concentrations (0,1,2,3,and 4wt%) of Copper Sulfate CuSO4.5H2O powder were studied . The films are prepared using solution casting technique, in order to investigate the effect of Copper Sulfate CuSO4.5H2O additions on the electrical properties of PS host. The D.C conductivity measured by measuring the D.C electrical resistance using the( Keithly Electrometer type 616C), and for different temperatures ranging from (30 – 80)oC . The dielectric properties measured by measuring the capacitor and the loss angle tangent as a function to the alternating electric field frequency using the (Agilent impedance analyzer 4294A), within the frequency range (50 – 6 ×106) Hz at room temperature. The experimental results showed that the dielectric constant is decrease with increase frequency of applied electrical field and increase with increasing concentrations, dielectric loss is decrease with increasing frequency of applied electrical field to be 0.5 MHz after this it was increasing , A.C electrical conductivity are increasing with increasing frequency of applied electrical field ,also, the results showed that the D.C electrical conductivity are increasing with increase concentration of PS and temperature, activation energy are decreasing with increase concentration of additive salt
Gli stili APA, Harvard, Vancouver, ISO e altri
42

Aristizabal, M. E., J. Eiras, D. Garcia e F. A. Londoño. "Structural, microstructural and dielectrical properties of Yb doped PLMN-13PT ceramics". Ferroelectrics 545, n. 1 (11 giugno 2019): 141–49. http://dx.doi.org/10.1080/00150193.2019.1626655.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
43

Orliukas, A. F., E. Kazakevicius, A. Kezionis, T. Salkus, I. P. Studenyak, R. Yu Buchuk, I. P. Prits e V. V. Panko. "Preparation, electric conductivity and dielectrical properties of Cu6PS5I-based superionic composites". Solid State Ionics 180, n. 2-3 (9 marzo 2009): 183–86. http://dx.doi.org/10.1016/j.ssi.2008.12.005.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
44

Costa, L. C., F. Henry, M. A. Valente, S. K. Mendiratta e A. S. Sombra. "Electrical and dielectrical properties of the percolating system polystyrene/polypyrrole particles". European Polymer Journal 38, n. 8 (agosto 2002): 1495–99. http://dx.doi.org/10.1016/s0014-3057(02)00044-7.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
45

Li, Xue, Xiaoming Wang, Ling Weng, Yang Yu, Xiaorui Zhang, Lizhu Liu e Cheng Wang. "Dielectrical properties of graphite nanosheets/PVDF composites regulated by coupling agent". Materials Today Communications 21 (dicembre 2019): 100705. http://dx.doi.org/10.1016/j.mtcomm.2019.100705.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
46

Hamerton, Ian, Brendan J. Howlin, Amy L. Mitchell, Lisa T. McNamara e Shinji Takeda. "Systematic examination of thermal, mechanical and dielectrical properties of aromatic polybenzoxazines". Reactive and Functional Polymers 72, n. 10 (ottobre 2012): 736–44. http://dx.doi.org/10.1016/j.reactfunctpolym.2012.07.001.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
47

Markevich, M. A., E. V. Prut, V. V. Potapov, V. G. Shevchenko e A. T. Ponomarenko. "Mechanical and dielectrical properties of the cured epoxide-dianephenol-formaldehyde oligomers". Polymer Science U.S.S.R. 27, n. 4 (gennaio 1985): 955–64. http://dx.doi.org/10.1016/0032-3950(85)90436-8.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
48

Yıldırım, Murat, Faruk Özel, Adem Sarılmaz, Abdalaziz Aljabour e İmren Hatay Patır. "Investigation of structural, optical and dielectrical properties of Cu2WS4 thin film". Journal of Materials Science: Materials in Electronics 28, n. 9 (20 gennaio 2017): 6712–21. http://dx.doi.org/10.1007/s10854-017-6365-0.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
49

İÇİER, FILIZ, e TANER BAYSAL. "Dielectrical Properties of Food Materials—1: Factors Affecting and Industrial Uses". Critical Reviews in Food Science and Nutrition 44, n. 6 (novembre 2004): 465–71. http://dx.doi.org/10.1080/10408690490886692.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
50

Aloui, Walid, Adnen Ltaief e Abdelaziz Bouazizi. "Dielectrical properties of PET-MWCNT/P3HT:PC70BM/Al device: Impedance spectroscopy analysis". Microelectronic Engineering 129 (novembre 2014): 96–99. http://dx.doi.org/10.1016/j.mee.2014.07.026.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Ti possono interessare anche gli elenchi di altri tipi di fonti sul tema "Dielectrical properties":
Tesi Libri
Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!

Vai alla bibliografia