Correlations Between Structure and Electrical Properties in Iron Phosphate Glasses PDF Download
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Author: James Granville Vaughan
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 144
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Author: James Granville Vaughan
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 144
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Author: Said AQDIM
Publisher: Scientific Research Publishing, Inc. USA
ISBN: 1649974337
Category : Antiques & Collectibles
Languages : en
Pages : 274
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Author: Huyen Quyen Le
Publisher:
ISBN:
Category : Property
Languages : de
Pages :
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Author: Andrew Winfield Dozier
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 188
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Author: Andrew Winfield Dozier
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
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Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 147575776X
Category : Science
Languages : en
Pages : 299
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Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis, (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 19 (thesis year 1974) a total of 10,045 theses titles from 20 Canadian and 209 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 19 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Author: Xiangyu Fang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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"The effect of melting history on the iron redox equilibrium, structure, crystallization and properties of a binary iron phosphate glass with a 40Fe2O3-60P2O5 mol%, batch composition were investigated. The structure and properties of single and mixed alkali iron phosphate glasses were also studied. Mössbauer, Raman and infrared spectroscopy were used to determine the changes in the concentration of iron ions and phosphate units in the structure. Differential thermal analysis, X-ray diffraction and thermogravimetric analysis were used to investigate crystallization. Density, molar volume, thermal expansion, dc electrical conductivity and dielectric constant and loss tangent were measured. The heat capacity and glass transition behavior of the glasses was also measured by the differential scanning calorimeter method. The effect of the melting temperature is stronger than the melting time on the concentration of Fe2 ions in iron phosphate glasses. The pyrophosphate network in iron phosphate glasses and their general properties do not change either with melting temperature and time or with adding up to 20 mol% of single and mixed alkali oxides. The dissolution rate (in deionized water) of these glasses is generally very low (~10−9 g/cm2/min) and nearly independent of the relative concentration of Fe2 or Fe3+ ions. The dissolution rate of the iron phosphate glasses containing 20 mol% of single or mixed alkali oxide can be comparable to that of window glass. There is no mixed alkali effect in the iron phosphate glasses. The crystallization tendency indicates that the glass structure becomes closer to that of crystalline Fe3(P2O-- )2 with increasing concentration of Fe2+ ions in the glass. The large fragility parameters indicates that the iron phosphate glasses belong in the category of the fragile glass-forming liquids"--Abstract, leaf v
Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: International Commission on Glass. Sub-committee AIX.
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 272
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Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 424
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