Chemically Prepared Lead Magnesium Niobate Dielectrics PDF Download
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Author:
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Languages : en
Pages : 11
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Book Description
A chemical solution powder synthesis technique has been developed that produces first, uniform powders of lead magnesium niobate (PMN) with 60 to 80 nm crystallite size. The synthesis technique was based on the dissolution of lead acetate and alkoxide precursors in acetic acid followed by precipitation with oxalic acid/propanol solutions. Lead magnesium niobate ceramics fabricated from these chemically derived powders had smaller, more uniform grain size and higher dielectric constants than ceramics fabricated from mixed oxide powders that were processed under similar thermal conditions. Chem-prep PMN dielectrics with peak dielectric constants greater than 22,000 and polarizations in excess of 29 [mu]C/cm2 were obtained for 1,100 C firing treatments. Substantial decreases in dielectric constant and polarization were measured for chemically prepared PMN ceramics fired at lower temperatures, consistent with previous work on mixed oxide materials.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
A chemical solution powder synthesis technique has been developed that produces first, uniform powders of lead magnesium niobate (PMN) with 60 to 80 nm crystallite size. The synthesis technique was based on the dissolution of lead acetate and alkoxide precursors in acetic acid followed by precipitation with oxalic acid/propanol solutions. Lead magnesium niobate ceramics fabricated from these chemically derived powders had smaller, more uniform grain size and higher dielectric constants than ceramics fabricated from mixed oxide powders that were processed under similar thermal conditions. Chem-prep PMN dielectrics with peak dielectric constants greater than 22,000 and polarizations in excess of 29 [mu]C/cm2 were obtained for 1,100 C firing treatments. Substantial decreases in dielectric constant and polarization were measured for chemically prepared PMN ceramics fired at lower temperatures, consistent with previous work on mixed oxide materials.
Author: James Wilmarth Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 268
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Author: Prashant N. Kumta
Publisher: Mrs Proceedings
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 496
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Book Description
Containing 65 papers from the symposium titled Chemical Aspects of Electronic Ceramics Processing held in November- December 1997 in Boston, the contents of this volume are divided into five sections: chemical vapor deposition of oxide ceramics; chemical vapor deposition of nonoxide ceramics; solution routes to ceramic materials; characterization and application of ceramic materials; and process characterization as a form of novel processing of ceramic materials. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Burtrand Insung Lee
Publisher: CRC Press
ISBN: 9780824792442
Category : Science
Languages : en
Pages : 572
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Book Description
This work details the various chemical procedures used to characterize and synthesize ceramic materials. It presents specific examples of classes of ceramic materials fabricated by chemical processes, including thin films, membranes and superconductors. New ceramic processing technologies that can be used in ceramic membrane preparation are considered.
Author: Daniel Joseph Beck
Publisher:
ISBN:
Category :
Languages : en
Pages : 71
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Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 852
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Author: Winnie Wong-Ng
Publisher: John Wiley & Sons
ISBN: 1118408489
Category : Technology & Engineering
Languages : en
Pages : 208
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Book Description
The number of ceramic materials with a perovskite type structure islarge and of considerable technological importance due to theirrich crystal chemistry and structure-property relationships.Applications include multilayer capacitators, piezoelectrictransducers, PTC thermistors, electrooptical modulators, opticalswitches, dielectric resonators, thick film resistors, electronicsensors, electrorestrictive actuators, magnetic bubble memorydevices, laser host materials, ferromagnetic materials, refractoryelectrodes, second harmonic generators, batteries, ceramicelectrodes, thermoelectric devices, and high temperaturesuperconductors. This volume contains papers on the research and development of newperovskite materials for various applications including doping ofexisting perovskite materials as well as processing for improvedproperties.
Author: Theodor Schneller
Publisher: Springer Science & Business Media
ISBN: 3211993118
Category : Technology & Engineering
Languages : en
Pages : 801
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Book Description
This is the first text to cover all aspects of solution processed functional oxide thin-films. Chemical Solution Deposition (CSD) comprises all solution based thin- film deposition techniques, which involve chemical reactions of precursors during the formation of the oxide films, i. e. sol-gel type routes, metallo-organic decomposition routes, hybrid routes, etc. While the development of sol-gel type processes for optical coatings on glass by silicon dioxide and titanium dioxide dates from the mid-20th century, the first CSD derived electronic oxide thin films, such as lead zirconate titanate, were prepared in the 1980’s. Since then CSD has emerged as a highly flexible and cost-effective technique for the fabrication of a very wide variety of functional oxide thin films. Application areas include, for example, integrated dielectric capacitors, ferroelectric random access memories, pyroelectric infrared detectors, piezoelectric micro-electromechanical systems, antireflective coatings, optical filters, conducting-, transparent conducting-, and superconducting layers, luminescent coatings, gas sensors, thin film solid-oxide fuel cells, and photoelectrocatalytic solar cells. In the appendix detailed “cooking recipes” for selected material systems are offered.
Author: Z-G Ye
Publisher: Elsevier
ISBN: 1845694007
Category : Technology & Engineering
Languages : en
Pages : 1091
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Book Description
This comprehensive book covers recent developments in advanced dielectric, piezoelectric and ferroelectric materials. Dielectric materials such as ceramics are used to manufacture microelectronic devices. Piezoelectric components have been used for many years in radioelectrics, time-keeping and, more recently, in microprocessor-based devices. Ferroelectric materials are widely used in various devices such as piezoelectric/electrostrictive transducers and actuators, pyroelectric infrared detectors, optical integrated circuits, optical data storage and display devices.The book is divided into eight parts under the general headings: High strain high performance piezo- and ferroelectric single crystals; Electric field-induced effects and domain engineering; Morphotropic phase boundary related phenomena; High power piezoelectric and microwave dielectric materials; Nanoscale piezo- and ferroelectrics; Piezo- and ferroelectric films; Novel processing and new materials; Novel properties of ferroelectrics and related materials. Each chapter looks at key recent research on these materials, their properties and potential applications.Advanced dielectric, piezoelectric and ferroelectric materials is an important reference tool for all those working in the area of electrical and electronic materials in general and dielectrics, piezoelectrics and ferroelectrics in particular. - Covers the latest developments in advanced dielectric, piezoelectric and ferroelectric materials - Includes topics such as high strain high performance piezo and ferroelectric single crystals - Discusses novel processing and new materials, and novel properties of ferroelectrics and related materials
Author: Aneta Słodczyk
Publisher:
ISBN:
Category :
Languages : en
Pages :
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