Relevant bibliographies by topics / Dielectric Constant

Academic literature on the topic 'Dielectric Constant'

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Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Dielectric Constant"

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Singh, Rajenda, and Richard K. Ulrich. "High and Low Dielectric Constant Materials." Electrochemical Society Interface 8, no. 2 (June 1, 1999): 26–30. http://dx.doi.org/10.1149/2.f06992if.

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Silicon-based dielectrics (SiO2, Si3N4, SiOxNy etc.) have been widely used as the key dielectrics in the manufacturing of silicon integrated circuits (ICs) and virtually all other semiconductor devices. Dielectrics having a value of dielectric constant k × 8.854 F/cm more than that of silicon nitride (k > 7) are classified as high dielectric constant materials, while those with a value of k less than the dielectric constant of silicon dioxide (k < 3.9) are classified as the low dielectric constant materials. The minimum value of (k) is one for air. The highest value of k has been reported for relaxor ferroelectric (k = 24,700 at 1 kHz).
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Biju, Anjitha, Maria Joseph, V. N. Archana, Navya Joseph, and M. R. Anantharaman. "High Dielectric Constant Liquid Dielectrics Based on Magnetic Nanofluids." Journal of Nanofluids 12, no. 4 (May 1, 2023): 1141–50. http://dx.doi.org/10.1166/jon.2023.1973.

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Magnetic nanofluids are increasingly finding new applications. They can be employed as liquid dielectrics. The advantage of having a liquid dielectric is that high dielectric constant can be achieved by a judicious choice of the base liquid. The dielectric constant can be tuned with the help of an external magnetic field too. Superparamagnetic iron oxide nanoparticles were dispersed in polar carriers, namely water, polyvinyl alcohol, ethylene glycol, and a nonpolar carrier like kerosene to obtain stable magnetic fluids after ensuring the crystallographic phase purity along with appropriate magnetic characteristics of the dispersant. The fluids were then subjected to dielectric studies using an automated homemade dielectric setup. The dielectric permittivity and dielectric loss at different frequencies with and without an external magnetic field were evaluated. The studies indicate that magnetic nanofluids based on polar carriers are excellent liquid dielectrics over a wide range of frequencies with the incorporation of iron oxide nanoparticles. The application of an external magnetic field enhances the dielectric constant considerably. These magnetic nanofluids can be employed as liquid dielectrics for applications. It has been found that kerosene based magneto fluids have a low dielectric constant while Polyvinyl alcohol based fluids exhibit the highest dielectric constant.
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Kalyane, Sangshetty. "Dielectric Constant Study of Polyaniline – CeO2 Composites." Indian Journal of Applied Research 3, no. 6 (October 1, 2011): 1–2. http://dx.doi.org/10.15373/2249555x/june2013/181.

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Ling, H. C., M. F. Yan, and W. W. Rhodes. "High dielectric constant and small temperature coefficient bismuth-based dielectric compositions." Journal of Materials Research 5, no. 8 (August 1990): 1752–62. http://dx.doi.org/10.1557/jmr.1990.1752.

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We have studied the crystal structure and the dielectric properties of a scries of Bi-based ceramic compositions as a function of compositional variation and sintering temperature. These dielectrics have dielectric constants hetween 70 and 165 and their temperature coefficients are within ±500 × 10−6/°C. The precise temperature coefficient can be controlled via compositional changes such that dielectrics with temperature coefficients within ±50 × 10−6/°C are easily obtainable. The room temperature dissipation factor is smaller than 0.001 or equivalently, the Q value is greater than 1000. The electrical resistivity is greater than 1014 ohm-cm. Furthermore, these dielectrics are sinterable below 960 °C, rendering it possible to use silver or high silver metallization as the internal electrode in making the multilayer ceramic capacitors.
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Mital, Prem Bhushan. "An Experimental Study of Curved Rectangular Microstrip Antenna in Simulated Plasma Medium." Active and Passive Electronic Components 19, no. 2 (1996): 119–23. http://dx.doi.org/10.1155/1996/26187.

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The effect of plasma on the radiation characteristics of curved rectangular microstrip antenna is studied by means of a new plasma simulation technique. Unlike previous techniques [1,2], a relative index of refraction less than unity is obtained by representing free space with a high dielectric constant sodium chloride powder and plasma by a medium of lower dielectric constant (air). A wide range of dielectric constants of simulated plasma could be possible with this technique using solid dielectrics instead of liquids. It is observed that the resonance frequency is not affected by the curvature of the antenna. However radiation patterns are significantly affected.
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Endo, Kazuhiko. "Fluorinated Amorphous Carbon as a Low-Dielectric-Constant Interlayer Dielectric." MRS Bulletin 22, no. 10 (October 1997): 55–58. http://dx.doi.org/10.1557/s0883769400034217.

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Low-k organic polymers such as polytetrafluoroethylene (PTFE) are promising materials for use as interlayer dielectrics (ILD) because their dielectric constants are generally lower than those of inorganic materials. However poor adhesion with Si substrates, poor thermal stability, and production difficulties have hindered their use in microelectronics.On the other hand, plasma-enhanced chemical vapor deposition (PECVD) of polymer films (plasma polymerization) has many advantages that help to overcome these problems. Plasma-enhanced chemical vapor deposition uses a glow discharge to create activated species such as radicals and ions from the original monomer, and the polymer films are deposited through various gas-phase and surface reactions of these active species, including ablation of the deposited film. No water is generated during plasma polymerization, and the influence of a solvent can be ignored. Also a layered structure that promotes adhesion can be easily fabricated by changing the source compounds.Recently the use of fluorinated amorphous carbon thin films (a-C:F) as new low-dielectric-constant interlayer dielectrics has been proposed. These thin films have an amorphous C–C cross-linked structure (including sp3 and sp2 bonded carbon) and have the same C–F bonds found in PTFE. The strong C–F bonds decrease the dielectric constant, and the C–C crosslinked structure maintains the film's thermal stability. The a-C:F film can be deposited from fluorocarbon source materials using PECVD. Typically fluorocarbons such as CF4, C2F6, C4F8, and their hydrogen mixtures are used as source materials. First the a-C:F films for low-k ILD, with a dielectric constant of 2.1, were deposited from CH4 + CF4 mixtures by using parallel-plate PECVD.
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Baklanov, Mikhail R., and Karen Maex. "Porous low dielectric constant materials for microelectronics." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 364, no. 1838 (November 29, 2005): 201–15. http://dx.doi.org/10.1098/rsta.2005.1679.

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Materials with a low dielectric constant are required as interlayer dielectrics for the on-chip interconnection of ultra-large-scale integration devices to provide high speed, low dynamic power dissipation and low cross-talk noise. The selection of chemical compounds with low polarizability and the introduction of porosity result in a reduced dielectric constant. Integration of such materials into microelectronic circuits, however, poses a number of challenges, as the materials must meet strict requirements in terms of properties and reliability. These issues are the subject of the present paper.
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Ghule, B., and M. Laad. "Polymer Composites with Improved Dielectric Properties: A Review." Ukrainian Journal of Physics 66, no. 2 (March 4, 2021): 166. http://dx.doi.org/10.15407/ujpe66.2.166.

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Materials exhibiting high dielectric constant (k) values find applications in capacitors, gate dielectrics, dielectric elastomers, energy storage device, while materials with low dielectric constant are required in electronic packaging and other such applications. Traditionally, high k value materials are associated with high dielectric losses, frequency-dependent dielectric behavior, and high loading of a filler. Materials with low k possess a low thermal conductivity. This creates the new challenges in the development of dielectric materials in both kinds of applications. Use of high dielectric constant filler materials increases the dielectric constant. In this study,the factors affecting the dielectric constant and the dielectric strength of polymer composites are explored. The present work aims to study the effect of various parameters affecting the dielectric properties of the materials. The factors selected in this study are the type of a polymer, type of a filler material used, size, shape, loading level and surface modification of a filler material, and method of preparation of the polymer composites. The study is focused on the dielectric enhancement of polymer nanocomposites used in the field of energy storage devices. The results show that the core-shell structured approach for high dielectric constant materials incorporated in a polymer matrix improves the dielectric constant of the polymer composite.
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Mandrić Radivojević, Vanja, Slavko Rupčić, Mario Srnović, and Goran Benšić. "Measuring the Dielectric Constant of Paper Using a Parallel Plate Capacitor." International journal of electrical and computer engineering systems 9, no. 1 (2018): 1–10. http://dx.doi.org/10.32985/ijeces.9.1.1.

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This article is a result of measuring the dielectric constant of a dielectric used in studying the influence of dielectrics on the antennae reflection coefficients. A paper having a density of 0.797 g/cm3, moisture content of 0% and temperature of 210C, is used as a dielectric. Although the literature provides a lot of data on the dielectric properties of wood and paper, without direct measurement of the dielectric constant it is impossible to know its amount for the dielectric used in the defined frequency range. Dielectric constant measurements are performed in the frequency range from 100 Hz to 100 kHz, while the frequency range of its impact on the aperture antenna reflection coefficients is up to 2 GHz. The frequency range from 100 KHz to 10 GHz is interpolated and fitted by using measurements and available literature data and by respecting physical influences and phenomena and functional changes of the dielectric constant of paper within the given range
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Guo, Dong, Zhi Yuan Ling, and Xing Hu. "Low Temperature Sintering Ba3Ti5Nb6O28 Ceramics with Tunable Temperature Coefficient of Dielectric Constant." Key Engineering Materials 368-372 (February 2008): 170–72. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.170.

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A middle permittivity dielectrics with the tunable temperature coefficient of dielectric constant (τε) in the BaO-TiO2-Nb2O5 system, Ba3Ti5Nb6O28, has been synthesized and characterized. The dielectric properties of Ba3Ti5Nb6O28 measured at 1MHz are as follows: dielectric constant (εr) ~38, dielectric loss (tanδ)<0.0002, temperature coefficient of dielectric constant (τε)~-22ppm/°C. The Ba3Ti5Nb6O28 phase satisfies the requirements of NP0 (MLCC) dielectrics, but the sintering temperature of the Ba3Ti5Nb6O28 phase (1250~1300°C) is too high to be co-fired with Ag or Cu electrodes. To lower the sintering temperature, an appropriate amount of ZnO-B2O3 frit (5~7wt.%) was added to the Ba3Ti5Nb6O28 phase and dense ceramics were obtained at the sintering temperature lower than 1000°C. Furthermore, the CaNb2O6 phase with the positive τε of 65ppm/°C was incorporated into the Ba3Ti5Nb6O28 phase to adjust the temperature coefficient of dielectric constant from negative to positive(-22~30ppm/°C). Near zero τε ceramics with high εr (38) and low tanδ (0.0002) were obtained at the composition of Ba3Ti5Nb6O28/ CaNb2O6/ ZB frit=76:17:7 wt.%.
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Dissertations / Theses on the topic "Dielectric Constant"

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Fromille, Samuel S. IV. "Novel Concept for High Dielectric Constant Composite Electrolyte Dielectrics." Thesis, Monterey, California. Naval Postgraduate School, 2013. http://hdl.handle.net/10945/53408.

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This research was part of an ongoing program studying the concept of multi-material dielectrics (MMD) with dielectric constants much higher than homogenous materials. MMD described in this study have dielectric constants six orders of magnitude greater than the best single materials. This is achieved by mixing conductive particles with an insulating surface layer into a composite matrix phase composed of high surface area ceramic powder and aqueous electrolyte. Specifically examined in this study was micron-scale nickel powder treated in hydrogen peroxide (H2O2) loaded into high surface area alumina powder and aqueous boric acid solution. This new class of dielectric, composite electrolyte dielectrics (CED), is employed in an electrostatic capacitor configuration and demonstrated dielectric constant of order 10 [raised to the 10th power] at approximately 1 Volt. Additionally, it is demonstrated that treated nickel can be loaded in high volume fractions in the CED configuration. Prior studies of composite capacitors indicated a general limitation due to shorting. This results from the onset of percolation due to excess loading of conductive phases. Insulated particles described herein are successfully loaded up to 40% by volume, far above typical percolation thresholds. Simple models are presented to explain results.
Lieutenant, United States Navy
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Eusner, Thor. "Determining the Preston constants of low-dielectric-constant polymers." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36308.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
Includes bibliographical references (leaf 30).
An important step in the manufacture of integrated circuits (ICs) is the Chemical Mechanical Polishing (CMP) process. In order to effectively use CMP, the removal rates of the materials used in ICs must be known. The removal rate of a given material by CMP can be determined once its Preston constant is known. The objectives of this work were to develop a method to determine the Preston constants and to measure the Preston constants of four low-dielectric-constant (low-k) polymers, labeled A, B, C, and D, and Cu. A weight-loss method, which measures the weight difference between the initial wafer and the polished wafer, provided repeatable results. The Preston constants ranged from 1.01 to 5.96 x10-'3 m2/N. The variation in measurements of the Preston constant ranged from 16% to 31%. The Preston constant of Cu was found to be 1.60 + 0.50 x10-13 m2/N. Of the four polymers, Polymer A had the smallest Preston constant, 1.01 i- 0.30 x10-13 m2/N. It was also determined that there is an approximate inverse linear relationship between the Preston constant of the four low-k polymers and their Young's moduli of elasticity. An approximate inverse linear relationship between the Preston constant of the four low-k polymers and the hardness was also observed.
by Thor Eusner.
S.B.
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Long, Ernest Edward. "Electrochemistry in low dielectric constant media." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316974.

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Cho, Taiheui. "Anisotropy of low dielectric constant materials and reliability of Cu/low-k interconnects /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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BERNAL, JOSÉ IGNACIO MARULANDA. "MICROWAVE DEVICES USING HIGH DIELECTRIC CONSTANT FILMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2010. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=17115@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
A crescente demanda por dispositivos portáveis de tamanho e peso cada vez mais reduzidos vem estimulando a busca por materiais de alta constante dielétrica e baixas perdas na faixa de freqüência de microondas capazes de permitir a integração e miniaturização de circuitos. No presente trabalho foi realizado um estudo teórico e experimental sobre a utilização de filmes de alta constante dielétrica na fabricação de dispositivos passivos de microondas de tamanhos reduzidos. Foi feita uma análise no domínio da freqüência sobre a influência desses filmes nas características de diferentes configurações de linhas de transmissão planares com múltiplas camadas dielétricas. A partir dessa análise, foi escolhida a configuração, denominada aqui de QCPW (Quase-Coplanar Waveguide), que permite a realização prática de estruturas com diversos valores de impedância utilizando dimensões transversais confortáveis. Filmes espessos de compostos de titanato de cálcio e de titanato de magnésio depositados pelo método de screen-printing e filmes finos de titanato de estrôncio por RF Magnetron Sputtering foram fabricados e caracterizados. O método do ressoador linear CPW e da linha de transmissão CPW foram empregados para determinar o valor da constante dielétrica e da tangente de perdas desses filmes na faixa de freqüência de microondas e à temperatura ambiente. O método do ressoador linear CPW foi adaptado e aperfeiçoado para fornecer resultados satisfatórios para o caso dos filmes finos. Finalmente, foram projetados, analisados e fabricados, pela primeira vez, transformadores de impedância em linhas de transmissão (TLT) de tamanho reduzido e com resposta banda larga baseados na configuração QCPW utilizando filmes de alta constante dielétrica.
The growing demand for portable devices with more reduced size and weight has stimulated the search for materials with high dielectric constant and low losses in the microwave frequency range allowing circuit integration and miniaturization. In this work, a theoretical and experimental study of the use of high dielectric constant films in the fabrication of microwave passive devices with reduced sizes has been made. A frequency domain analysis of the influence of these films on the characteristics of different configurations of multilayer transmission lines has been done. From this analysis, a configuration, called here as QCPW (Quasi-Coplanar Waveguide), that allows a practical implementation of structures with several values of impedance using comfortable transversal dimensions was chosen. Composite thick films of calcium titanate and magnesium titanate deposited by screen-printing and thin films of strontium titanate deposited by RF Magnetron Sputtering have been elaborated and characterized. CPW linear resonator method and CPW transmission line have been used to determinate the value of the dielectric constant and loss tangent of these films in the microwave frequency range at room temperature. The CPW linear resonator method was adapted and improved in order to provide satisfactory results for the case of thin films. Finally, for the first time, impedance transmission line transformers (TLT) with reduced size and wide-band response, based on the QCPW configuration using high dielectric constant films have been designed, analyzed, and fabricated.
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Braganza, Clinton Ignatuis. "High Dielectric Constant Materials Containing Liquid Crystals." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1248065159.

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Mercer, Sean R. "Online microwave measurement of complex dielectric constant." Doctoral thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/8342.

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Includes bibliographical references.
This dissertation examines the problem of on-line measurement of complex dielectric constant for the purpose of dielectric discrimination or product evaluation using microwave techniques. Various methods of signal/sample interaction were studied and consideration was given to the problem of sorting irregularly shaped discrete samples. The use of microwave transmission and reflection measurements was evaluated. The signal reflection methods were deemed to be best suited to applications with constant geometry feed presentation ( ie. a continuous, homogeneous product stream with little variation in surface geometry).
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Dhanapala, Hembathanthirige Yasas. "Dielectric Constant Measurements Using Atomic Force Microscopy System." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1347907325.

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Tanner, Carey Marie. "Engineering high dielectric constant materials on silicon carbide." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1459913391&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Shan, Xiaobing Cheng Zhongyang. "High dielectric constant 0-3 ceramic-polymer composites." Auburn, Ala, 2009. http://hdl.handle.net/10415/1820.

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Books on the topic "Dielectric Constant"

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Fröhlich, H. Theory of dielectrics: Dielectric constant and dielectric loss. 2nd ed. Oxford: Clarendon, 1986.

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Fröhlich, H. Theory of dielectrics: Dielectrics constant and dielectric loss. 2nd ed. Oxford: Clarendon Press, 1986.

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Huff, H. R., and D. C. Gilmer, eds. High Dielectric Constant Materials. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/b137574.

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Ho, Paul S., Jihperng Jim Leu, and Wei William Lee, eds. Low Dielectric Constant Materials for IC Applications. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55908-2.

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Ho, Paul S. Low Dielectric Constant Materials for IC Applications. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003.

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S, Rathore Hazara, and Electrochemical Society. Dielectric Science and Technology Division., eds. Proceedings of the Second International Symposium on Low and High Dielectric Constant Materials: Materials Science, Processing, and Reliability Issues. Pennington, NJ: Electrochemical Society, 1997.

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J, Lododa Mark, Electrochemical Society. Dielectric Science and Technology Division., Electrochemical Society Electronics Division, and International Symposium on Low and High Dielectric Constant Materials: Materials Science, Processing, and Reliability Issues (5th : 2000 : Toronto, Ont.), eds. Low and high dielectric constant materials: Materials science, processing, and reliability issues : proceedings of the fifth international symposium. Pennington , NJ: Electrochemical Society, Inc., 2000.

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United States. National Aeronautics and Space Administration., ed. Theoretical study of the transverse dielectric constant of superlattices and their alloys. [Urbana, Ill.]: University of Illinois at Urbana-Champaign, Coordinated Science Laboratory, College of Engineering, 1986.

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Borst, Christopher L., William N. Gill, and Ronald J. Gutmann. Chemical-Mechanical Polishing of Low Dielectric Constant Polymers and Organosilicate Glasses. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-1165-6.

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Jack, Gow Anthony, Morey Rexford M, Cold Regions Research and Engineering Laboratory (U.S.), and National Science Foundation (U.S.). Division of Polar Programs., eds. A reassessment of the in-situ dielectric constant of polar firn. [Hanover, N.H.]: US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory, 1993.

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Book chapters on the topic "Dielectric Constant"

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Gooch, Jan W. "Dielectric Constant." In Encyclopedic Dictionary of Polymers, 213. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3582.

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Gooch, Jan W. "Dielectric Constant." In Encyclopedic Dictionary of Polymers, 887. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_13555.

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Weik, Martin H. "dielectric constant." In Computer Science and Communications Dictionary, 402. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_4960.

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da Silva, E. C. F. "AlSb: dielectric constant." In New Data and Updates for IV-IV, III-V, II-VI and I-VII Compounds, their Mixed Crystals and Diluted Magnetic Semiconductors, 133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14148-5_77.

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Gooch, Jan W. "Complex Dielectric Constant." In Encyclopedic Dictionary of Polymers, 160. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2733.

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Strauch, D. "CaSe: dielectric constant." In New Data and Updates for several IIa-VI Compounds (Structural Properties, Thermal and Thermodynamic Properties, and Lattice Properties), 241. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41461-9_102.

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Strauch, D. "CaTe: dielectric constant." In New Data and Updates for several IIa-VI Compounds (Structural Properties, Thermal and Thermodynamic Properties, and Lattice Properties), 250. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41461-9_107.

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Strauch, D. "CaS: dielectric constant." In New Data and Updates for several IIa-VI Compounds (Structural Properties, Thermal and Thermodynamic Properties, and Lattice Properties), 231. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41461-9_97.

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Strauch, Dieter. "SrS: Dielectric Constant." In Semiconductors, 123–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53620-9_33.

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Strauch, Dieter. "SrSe: Dielectric Constant." In Semiconductors, 135–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53620-9_38.

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Conference papers on the topic "Dielectric Constant"

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Zhang, Tian, Yash Thakur, and Q. M. Zhang. "Doped dielectric polymers with low dielectric constant nanofillers." In 2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon (CEIDP). IEEE, 2017. http://dx.doi.org/10.1109/ceidp.2017.8257447.

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Attiya, Ahmed M., and W. M. Hassan. "Interdigital capacitor dielectric constant probe." In 2017 IEEE Asia Pacific Microwave Conference (APMC). IEEE, 2017. http://dx.doi.org/10.1109/apmc.2017.8251499.

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Siwang Kou, Shuhui Yu, Rong Sun, and Ching Ping Wong. "High-dielectric-constant graphite oxide-polyimide composites as embedded dielectrics." In 2012 7th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2012. http://dx.doi.org/10.1109/impact.2012.6420222.

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Zhang, Zhen, Liwu Liu, Jiumin Fan, Kai Yu, Yanju Liu, Liang Shi, and Jinsong Leng. "New silicone dielectric elastomers with a high dielectric constant." In The 15th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, edited by Douglas K. Lindner. SPIE, 2008. http://dx.doi.org/10.1117/12.775989.

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Dharmadhikari, D. M., and S. N. Helambe. "Analyzing dielectric constant using homocentric resonator." In 2017 IEEE Applied Electromagnetics Conference (AEMC). IEEE, 2017. http://dx.doi.org/10.1109/aemc.2017.8325675.

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Valavade, A. V., D. C. Kothari, and C. Löbbe. "Dielectric constant microscopy for biological materials." In SOLID STATE PHYSICS: PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4791140.

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Richert, Ranko, and Hermann Wagner. "Dielectric relaxation under constant-charge conditions." In Dielectric and Related Phenomena: Materials Physico-Chemistry, Spectrometric Investigations, and Applications, edited by Andrzej Wlochowicz. SPIE, 1997. http://dx.doi.org/10.1117/12.276276.

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Garcia-Garcia, J., J. Ocampo, C. Martinez, and J. Alonso. "Thick film high dielectric constant resonators." In 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS). IEEE, 2011. http://dx.doi.org/10.1109/comcas.2011.6105872.

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Umenyiora, C. A., R. L. Druce, R. D. Curry, P. Norgard, T. McKee, J. J. Bowders, and D. A. Bryan. "Measurement of sand effective dielectric constant." In 2011 IEEE Pulsed Power Conference (PPC). IEEE, 2011. http://dx.doi.org/10.1109/ppc.2011.6191454.

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Kother, Dietmar, and Uwe Gollor. "Characterization of low dielectric constant materials." In 2007 69th ARFTG Microwave Measurements Conference. IEEE, 2007. http://dx.doi.org/10.1109/arftg.2007.5456337.

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Reports on the topic "Dielectric Constant"

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Brisco, B., T. J. Pultz, R. J. Brown, G. C. Topp, and W D Zebchuk. Dielectric Constant Measurements of Soil With Portable Dielectric Probes and TDR Techniques. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/218269.

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Nahman, N. S. Dielectric constant measurements on n-heptane and 2-heptanone. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/527432.

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Brody, Philip S. Dielectric Constant Decrease upon Illumination in a Barium Titanate Crystal. Fort Belvoir, VA: Defense Technical Information Center, April 1997. http://dx.doi.org/10.21236/ada324231.

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Mazzaro, Gregory J., Gregory D. Smith, Getachew Kirose, and Kelly D. Sherbondy. Effect of Cold Temperature on the Dielectric Constant of Soil. Fort Belvoir, VA: Defense Technical Information Center, April 2012. http://dx.doi.org/10.21236/ada561950.

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Wu, Shun Jackson. Development of low dielectric constant alumina-based ceramics for microelectronic substrates. Office of Scientific and Technical Information (OSTI), May 1993. http://dx.doi.org/10.2172/10150031.

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Kohl, Paul, and Sue A. Bidstrup. Low Dielectric Constant Insulators and Gold Metallization for GHz Multi-Chip Modules. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada252881.

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Mopsik, Frederick I., and Brian Dickens. The measurement of the dielectric constant of polymeric films at high fields. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4910.

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Kohl, Paul, Sue A. Bidstrup, and David Hertling. Low Dielectric Constant Insulators and Gold Metallization for GHz Multi-Chip Modules. Part 2. Fort Belvoir, VA: Defense Technical Information Center, January 1995. http://dx.doi.org/10.21236/ada306976.

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Toney, Michael F. Supercritical carbon dioxide extraction of porogens for the preparation of ultralow-dielectric-constant films. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/813355.

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He, Rui, Na (Luna) Lu, and Jan Olek. Development of In-Situ Sensing Method for the Monitoring of Water-Cement (w/c) Values and the Effectiveness of Curing Concrete. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317377.

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Abstract:
As the most widely used construction material, concrete is very durable and can provide long service life without extensive maintenance. The strength and durability of concrete are primarily influenced by the initial water-cement ratio value (w/c), and the curing condition during the hardening process also influences its performance. The w/c value is defined as the total mass of free water that can be consumed by hydration divided by the total mass of cement and any additional pozzolanic material such as fly ash, slag, silica fume. Once placed, field concrete pavements are routinely cured with liquid membrane-forming compounds. For laboratory study, concrete samples are usually cured in saturated lime water or a curing room with a relative humidity (RH) value higher than 95%. Thus, the effectiveness of curing compounds for field concrete needs to be studied. In this study, the dielectric constant value of plastic concrete was measured by ground penetrating radar (GPR). The w/c value of the plastic concrete was calculated by a mathematical model from the measured dielectric constant value. The calculated w/c value was compared with the microwave oven drying measurement determined result in AASHTO T318. A modified coarse aggregate correction factor was proposed and applied in microwave oven drying measurement to determine the w/c value of plastic concrete in AASHTO T318. The effectiveness of curing compound was evaluated by field concrete slabs by GPR measurement. It was found that GPR can be a promising NDT method for In this study, the dielectric constant value of plastic concrete was measured by ground penetrating radar (GPR). The w/c value of the plastic concrete was calculated by a mathematical model from the measured dielectric constant value. The calculated w/c value was compared with the microwave oven drying measurement determined result in AASHTO T318. A modified coarse aggregate correction factor was proposed and applied in microwave oven drying measurement to determine the w/c value of plastic concrete in AASHTO T318. The effectiveness of curing compound was evaluated by field concrete slabs by GPR measurement. It was found that GPR can be a promising NDT method for w/c determination of plastic concrete and curing effectiveness evaluation method for hardened concrete.
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