Synthesis and Phase Diagrams of the Lead Magnesium Niobate-lead Titanate-lead Oxide System PDF Download
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Author: Jingping Gao
Publisher:
ISBN:
Category : Ferroelectricity
Languages : en
Pages : 0
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Book Description
Author: Jingping Gao
Publisher:
ISBN:
Category : Ferroelectricity
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
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Book Description
During this program the following milestones were achieved: (1) Developed a method for synthesizing near pyrochlore-free PMNT starting material for crystal growth using the Columbite process and Pb3O4. Pyrochlore-free starting material prevents the crystals from sticking to the walls of the Pt crucibles and thereby prevents some forms of cracking. An another important development was the use of commercial magnesium niobate that reduced the number of processing steps and time by 50%. (2) Measured the liquidus curve in the PMN-PT phase diagram system for the first time. (3) Grew the first large PNM and PMN 10PT single crystals from nonfluxed melts by the Bridgman method during the first year and had their properties measured. These crystals grew along the 111 direction, their fast growth axis and their properties were consistent with literature values, (4) Grew large, transparent one inch diameter boules of PMN-3PT and PMN-32PT crystals using seed crystals for evaluation of compositional and structural uniformity, crystalline defects, etc. Uniform axial and radial composition was found in one cm diameter boules but axial Ti concentration variations were over 10% in one inch diameter crystals. Samples have been submitted for property measurements and evaluation to NUWC, Tetrad, Washington State University, Penn State University, Hewlett Packard, Wilcoxon, etc. It was found that the properties of the tetragonal PMNT phase (greater than 35% Ti) were not as good as those for rhombohedral crystals.
Author: Arnoud P. De Kroon
Publisher:
ISBN:
Category :
Languages : en
Pages : 310
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Author: David Zekria
Publisher:
ISBN:
Category : Lead compounds
Languages : en
Pages : 392
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Book Description
Author: Ralf Riedel
Publisher: John Wiley & Sons
ISBN: 3527631968
Category : Technology & Engineering
Languages : en
Pages : 554
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Book Description
Although ceramics have been known to mankind literally for millennia, research has never ceased. Apart from the classic uses as a bulk material in pottery, construction, and decoration, the latter half of the twentieth century saw an explosive growth of application fields, such as electrical and thermal insulators, wear-resistant bearings, surface coatings, lightweight armour, or aerospace materials. In addition to plain, hard solids, modern ceramics come in many new guises such as fabrics, ultrathin films, microstructures and hybrid composites. Built on the solid foundations laid down by the 20-volume series Materials Science and Technology, Ceramics Science and Technology picks out this exciting material class and illuminates it from all sides. Materials scientists, engineers, chemists, biochemists, physicists and medical researchers alike will find this work a treasure trove for a wide range of ceramics knowledge from theory and fundamentals to practical approaches and problem solutions.
Author: Edward Peter Gorzkowski
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 310
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Book Description
The influence of excess PbO on {001} single crystal growth was studied in the range of 0--10 vol% PbO. It was found that up to 1.5 vol% PbO, the amount of single crystal and grain growth increased with increasing PbO additions. At higher PbO contents, however, the growth becomes independent of liquid fraction for all annealing times. In addition since the matrix grains were faceted and the growth best fit parabolic kinetics, interface reaction control was deemed the most likely growth mechanism.
Author: Edgar Robert Seydel
Publisher:
ISBN:
Category :
Languages : en
Pages : 156
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Author: T. F. Connolly
Publisher: Springer Science & Business Media
ISBN: 1475706987
Category : Science
Languages : en
Pages : 692
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Book Description
This volume is a joint effort of the Research Materials Information Center (RMIC) of the Solid State Division at Oak Ridge National Laboratory and the Libraries and Information Systems Center at Bell Telephone Laboratories (BTL) Murray Hill, N. J. The Research Materials Information Center has, since 1963, been answering inquiries on the avail ability, preparation, and properties of inorganic solid-state research materials. The preparation of bibliographies has been essential to this function, and the interest in ferroelectrics led to the compila tion of the journal and report literature on that subject. The 1962 book Ferroelectric Crystals, by Jona and Shirane, was taken as a cutoff point, and all papers through mid-1969 received by the Center have been included. The Libraries and Information Systems Center of BTL has, over a period of years, developed a proprie tary package of computer programs called BELDEX, which formats and generates indexes to biblio graphic material. This group therefore undertook to process RMIC's ferroelectric references by BELDEX so that both laboratories could have the benefit of an indexed basic bibliography in this important research area.
Author: Robert I. Mangham
Publisher:
ISBN:
Category : High temperature chemistry
Languages : en
Pages : 472
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Book Description
Author: Pierre Villars
Publisher: Walter de Gruyter
ISBN: 3110276658
Category : Science
Languages : en
Pages : 1827
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Book Description
By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
