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Dielectric Breakdown In Thin Films Of Alkali And Alkaline Earth Fluorides
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Book Synopsis Dielectric Breakdown in Thin Films of Alkali and Alkaline-earth Fluorides by : James Lynn Smith
Download or read book Dielectric Breakdown in Thin Films of Alkali and Alkaline-earth Fluorides written by James Lynn Smith and published by . This book was released on 1968 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dielectric Breakdown of Alkali-free Boroaluminosilicate Glass Thin Films by : Jessica Lynn Serra
Download or read book Dielectric Breakdown of Alkali-free Boroaluminosilicate Glass Thin Films written by Jessica Lynn Serra and published by . This book was released on 2010 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some glasses have exhibited dielectric breakdown strengths two orders of magnitude higher than polycrystalline ceramic materials. Their high dielectric breakdown strength makes glass an ideal candidate for use in high energy density capacitors for pulsed power applications. It has been observed in recent studies that a commercial alkali-free boroaluminosilicate glass, Schott AF45TM[superscript], exhibits a dielectric breakdown strength of 12- 13 MV/cm. In order to successfully measure the dielectric breakdown strength of this glass, samples 5-30 microns thick were used during testing. It was desirable to continue testing glass below 5 microns thick in the pursuit of measuring the intrinsic dielectric breakdown strength. In this study, thin film deposition was used to produce glass less than 5 microns thick. Because of a built-in thickness gradient in the films across the wafer surface, each sample provided a range of thicknesses to measure. AF45 was used as the target material. RF magnetron sputtering was chosen over other deposition techniques, such as evaporation or chemical vapor deposition, because of its ability to sputter insulators, the ability to use a piece of commercial glass as the target material, the increased film density and good compositional control. Several characterization techniques were used to understand the properties of the films. The films were examined with field emission scanning electron microscopy and observed to be microstructure free. The composition, measured by x-ray photoelectron spectroscopy, differed from that of the bulk glass. The films also appear to have a significant amount of water included in the structure and a lower density based on spectra obtained from Fourier transfer infrared spectroscopy measurments. The dielectric breakdown strength of the films was measured to be 9.5-10 MV/cm, about 20% lower then the dielectric breakdown strength of the thinnest sample of bulk glass. The decreased breakdown strength measured for the thin films is attributed to several factors. The presence of water and the low density of the films can allow for charge to pass through the glass films more easily than in the bulk. Microstructural defects such as voids and impurities within the deposited film, electrodes and especially at the film/electrode interface, are obvious candidates based upon previous work with bulk dielectrics. The compositional non-uniformity observed in the films could further enhance structural defect formation, beyond those intrinsic to the deposition process itself.
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1979 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications by : United States. National Bureau of Standards
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1969 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1991 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards 1978 Catalog by : United States. National Bureau of Standards
Download or read book Publications of the National Bureau of Standards 1978 Catalog written by United States. National Bureau of Standards and published by . This book was released on 1979 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards ... Catalog by : United States. National Bureau of Standards
Download or read book Publications of the National Bureau of Standards ... Catalog written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1970 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts written by and published by . This book was released on 1968 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index, 1861-1972: Astronomy and physics, A-L by : Xerox University Microfilms
Download or read book Comprehensive Dissertation Index, 1861-1972: Astronomy and physics, A-L written by Xerox University Microfilms and published by . This book was released on 1973 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards by : United States. National Bureau of Standards
Download or read book Publications of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards, 1968-1969 by : Betty L. Oberholtzer
Download or read book Publications of the National Bureau of Standards, 1968-1969 written by Betty L. Oberholtzer and published by . This book was released on 1970 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials by :
Download or read book Laser Induced Damage in Optical Materials written by and published by . This book was released on 1994 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Window and Mirror Materials by : G. C. Battle
Download or read book Laser Window and Mirror Materials written by G. C. Battle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charles S. Sahagian Chief, Electromagnetic Materials Technology Branch Deputy for Electronic Technology Hanscom AFB, MA 01731 I t should not be surprising that an event as significant as the discovery of the laser has had some con comitant impact on other areas of science and technology, but the extent of the impact was grossly unpredicted. Upon perusal of this bibliography, devoted to the subject of laser window and mirror materials, it becomes very apparent that the effect of the laser on materials R&D has been enormous. Several hundred papers and reports, representing millions of dollars of effort, have been promulgated over the past decade; and as new frequencies, improved tunability, higher power, and other charac teristics are achieved, we can expect even greater demands and requirements on the materials com munity. What are some of the highlights disclosec by this bibliography with regard to work already ac complished? First, one can note the extensive investigations into developing new materials while at the same time improving old ones. Among the latter, alkali halides, for example, have essentially had a rebirth. I n the past five years more progress has been achieved in the chemical and structural perfec tion of this class of materials than in the entire preceding century. Also carried along in the surge for improved laser materials have been the alkaline earth fluorides (prime candidates for 3-to 5-J,Lm ap plications), chalcogenides, semiconductors, oxides, and others.