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6th International Symposium on Electrets,(ISE 6) Proceedings.最新文献

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Increase of refractive indices in liquid dielectrics by space charge accumulation 空间电荷积累对液体介质折射率增加的影响
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38620
T. Sato
{"title":"Increase of refractive indices in liquid dielectrics by space charge accumulation","authors":"T. Sato","doi":"10.1109/ISE.1988.38620","DOIUrl":"https://doi.org/10.1109/ISE.1988.38620","url":null,"abstract":"Summary form only given, as follows. Distributions of refractive indices were measured with Mach-Zehnder and Schlieren techniques in liquid dielectrics where space-charge conduction took place with a parallel-plane-electrode configuration under direct voltage application. An Al-SiO-Au emitter for hexane, a discharging plasma in gaseous space, and aqueous solutions of electrolytes for mineral and silicone oils were used as charge emitters. Space-charge distributions were determined graphically from curves of potential distributions measured with an electrostatic probe. Comparisons of the distributions of the refractive index to those of space charge show that refractive indices increase with space charge at the rate of 1.7*10/sup -5//10/sup -3/ C/m/sup 3/ for mineral oil at room temperature.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132470237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pyroelectric applications of ferroelectric polymers 铁电聚合物的热释电应用
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38558
S. Lang, Xiao Ding-quan
{"title":"Pyroelectric applications of ferroelectric polymers","authors":"S. Lang, Xiao Ding-quan","doi":"10.1109/ISE.1988.38558","DOIUrl":"https://doi.org/10.1109/ISE.1988.38558","url":null,"abstract":"The major application of pyroelectric materials is in infrared detection, although their unique thermal sensitivity is utilized in a number of other ways. Ferroelectric polymers such as polyvinylidene fluoride (PVDF) and vinylidene-fluoride-based copolymers have the special advantage of availability as large surface area, thin, flexible, low-cost sheets. The authors review some of the applications of these materials, namely, electronic readout spectrometers for CO/sub 2/ lasers, optical fiver absorption loss measurement, detection of standing light waves in front of a silver mirror, and cometary and interplanetary dust detection.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132551564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A surface TSC study of the interaction between a gas and an epoxy resin 气体与环氧树脂相互作用的表面TSC研究
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38598
F. Kaouah, M. Bendaoud, N. Bouchtout
{"title":"A surface TSC study of the interaction between a gas and an epoxy resin","authors":"F. Kaouah, M. Bendaoud, N. Bouchtout","doi":"10.1109/ISE.1988.38598","DOIUrl":"https://doi.org/10.1109/ISE.1988.38598","url":null,"abstract":"The thermally stimulated surface current (TSC) has been measured by special electrodes metallized on the same side of a sample of a DGEBA/IPD resin system. The surface TSC diagrams have been compared to TSC volume measurements. The interaction between the polymer and the atmosphere in which it is placed has been studied for humid atmosphere, nitrogen, and carbon dioxide. The effects of moisture, nitrogen and carbon dioxide are assessed.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133357227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dielectric alpha relaxation study of polyethylene by thermally stimulated depolarization currents and thermal sampling 热激退极化电流和热取样法研究聚乙烯介电α弛豫
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38576
J. Dueñas, R. D. Calleja, J. Ribelles
{"title":"Dielectric alpha relaxation study of polyethylene by thermally stimulated depolarization currents and thermal sampling","authors":"J. Dueñas, R. D. Calleja, J. Ribelles","doi":"10.1109/ISE.1988.38576","DOIUrl":"https://doi.org/10.1109/ISE.1988.38576","url":null,"abstract":"The dielectric alpha relaxation zone of branched low-density and linear high-density polyethylene has been studied by thermally stimulated depolarization currents. Two relaxations, alpha and alpha ', have been found, with maxima in the temperature range between 270 K and 300 K. Thermal sampling measurements showed that the alpha ' relaxation is distributed in both polyethylenes and appears at higher temperatures and with lower activation energy in the branched polyethylene than in the linear one. The activation energy of the alpha relaxation is not distributed, appearing at the same temperature in both polyethylenes. The behavior of the alpha ' relaxation agrees with the hypothesis of a molecular origin in the crystalline-amorphous interface of polyethylenes, the alpha relaxation being due to molecular motions within the crystalline phase.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131101528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Vibetek 20 piezoelectric cable: A continuous process Vibetek 20压电电缆:一个连续的过程
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38651
D. Fox
{"title":"Vibetek 20 piezoelectric cable: A continuous process","authors":"D. Fox","doi":"10.1109/ISE.1988.38651","DOIUrl":"https://doi.org/10.1109/ISE.1988.38651","url":null,"abstract":"A novel piezoelectric cable is described which can be manufactured on a continuous basis, permitting long continuous lengths to be produced. The author describes its important mechanical and electrical properties, together with its performance under a variety of conditions. Its principal features are its considerable mechanical flexibility, high piezoelectric coefficients, and the extremely long lengths available, which allows a degree of design flexibility never before offered to sensor designers. Several applications are outlined, emphasizing some of the unique properties of the cable.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131069629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of inhomogeneity on the determination of density of states for current carriers in insulators and wide band-gap semiconductors 非均匀性对绝缘体和宽禁带半导体电流载流子态密度测定的影响
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38534
J. Sworakowski, S. Nešpůrek
{"title":"Effect of inhomogeneity on the determination of density of states for current carriers in insulators and wide band-gap semiconductors","authors":"J. Sworakowski, S. Nešpůrek","doi":"10.1109/ISE.1988.38534","DOIUrl":"https://doi.org/10.1109/ISE.1988.38534","url":null,"abstract":"The reliability of the determination of the density of local states in inhomogeneous samples from space-charge-limited currents is examined. It is shown that the densities of states can be determined with an error as large as several orders of magnitudes, depending on spatial distributions of the states. The energy scale may be determined to within a few kT.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121210277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrical conduction in acrylic acid doped polystyrene 丙烯酸掺杂聚苯乙烯的导电性能
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38573
A. Murthy, R. Baghel, R. Singh, S. Datt
{"title":"Electrical conduction in acrylic acid doped polystyrene","authors":"A. Murthy, R. Baghel, R. Singh, S. Datt","doi":"10.1109/ISE.1988.38573","DOIUrl":"https://doi.org/10.1109/ISE.1988.38573","url":null,"abstract":"The electrical conductivity of acrylic-acid (AA)-doped polystyrene films (about 100- mu m thick) has been studied as a function of temperature in the range 20-85 degrees C. Power-law dependence of current on voltage has been observed at various temperatures. The value of the power has been found to decrease with increasing temperature and also with increasing dopant concentration. The conductivity was found to increase with an increase in dopant concentration. These effects have been attributed to the formation of charge-transfer complexes (CTCs).<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115950812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electret state of butadiene-styrene copolymers 丁二烯-苯乙烯共聚物的驻极体态
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38613
R. Capelletti, J. Pospisil
{"title":"Electret state of butadiene-styrene copolymers","authors":"R. Capelletti, J. Pospisil","doi":"10.1109/ISE.1988.38613","DOIUrl":"https://doi.org/10.1109/ISE.1988.38613","url":null,"abstract":"Thermally stimulated depolarization currents (TSDC) in the range of 120-350 K are exploited to study triblock and statistical styrene-butadiene copolymers. TSDC peaks occur at the butadiene phase glass transition, due to the reorientation of butadiene dipolar groups. The peak is accounted for by a distribution of relaxation times. In block copolymers the TSDC signal is monitored at the butadiene phase transition temperature even if the sample is not previously polarized. Ordering effects induced by the sample preparation are discussed.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"356 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122801808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Polymeric materials with enhanced second order nonlinearities 具有增强二阶非线性的高分子材料
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38647
H. Katz, M. Schilling, R. Comizzoli, K. Singer, J. E. Sohn, M. Kuzyk, W. R. Holland
{"title":"Polymeric materials with enhanced second order nonlinearities","authors":"H. Katz, M. Schilling, R. Comizzoli, K. Singer, J. E. Sohn, M. Kuzyk, W. R. Holland","doi":"10.1109/ISE.1988.38647","DOIUrl":"https://doi.org/10.1109/ISE.1988.38647","url":null,"abstract":"Electric-field poling of thin polymer films containing dipolar chromophores provides materials possessing significant bulk second-order nonlinear optical susceptibilities. Incorporation of cyanovinyl acceptor groups into the chromophores results in larger susceptibilities than when the more usual nitro group is used. This dye copolymer has been synthesized and processed to yield a novel single-component material with useful, stable bulk hyperpolarizabilities.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121171814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermally stimulated currents in sodium borosilicate glass 硼硅酸钠玻璃中的热刺激电流
6th International Symposium on Electrets,(ISE 6) Proceedings. Pub Date : 1988-09-01 DOI: 10.1109/ISE.1988.38618
E. Rysiakiewicz-Pasek, V. Graveris, I. Krumins
{"title":"Thermally stimulated currents in sodium borosilicate glass","authors":"E. Rysiakiewicz-Pasek, V. Graveris, I. Krumins","doi":"10.1109/ISE.1988.38618","DOIUrl":"https://doi.org/10.1109/ISE.1988.38618","url":null,"abstract":"Thermally stimulated polarization (TSP) and thermally stimulated depolarization (TSD) were used to investigate sodium ion motion in borosilicate glass. Two TSD peaks were observed. The experimental results reveal the dipole polarization nature of the low-temperature peak, which can be related to short-range sodium ion motion.<<ETX>>","PeriodicalId":199976,"journal":{"name":"6th International Symposium on Electrets,(ISE 6) Proceedings.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128338638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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