Estimation Of Heat Capacities And Other Thermodynamic Properties Of Refractory Borides
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Author | : O. H. KRIKORIAN |
Publisher | : |
Total Pages | : 39 |
Release | : 1971 |
Genre | : |
ISBN | : |
Download Estimation of Heat Capacities and Other Thermodynamic Properties of Refractory Borides Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 354 |
Release | : 1963 |
Genre | : Ceramic metals |
ISBN | : |
Download Some Kinetic and Thermodynamic Properties of the Refractory Metal Borides and Nitrides Book in PDF, Epub and Kindle
Author | : G.V. Samsonov |
Publisher | : Springer Science & Business Media |
Total Pages | : 666 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642666205 |
Download Boron and Refractory Borides Book in PDF, Epub and Kindle
V. I. MATKOVICH During the meeting of the International Symposium on Boron held in October, 1972 in Tbilisi, U.S.S.R., the idea was proposed to assemble a review of boron and refractory borides by the specialists present. The advantages of such a work were immediately apparent. Such diverse applications of borides as in protective armor, nuclear reactors, coat ings, reinforcement, etc. can hardly all be presented in sufficient detail by a single author. On the other hand it was also recognized that with so much specialization, some areas of interest may not be covered. Within the last decade or two a number of areas have been developed in which the use of refractory borides is growing and improvements are being actively explored. Thus, a number of borides have considerable potential as reinforcing material for plastics or light metals, though only boron fibers have been firmly established up to the present. Ap plication of flakes and films for two-dimensional reinforcement appears attractive, although the high cost of materials and development repre sents a considerable barrier. A number of borides have been used to manufacture lightweight protec tive armor. In this area relatively fast changes seem to be taking place as improvements in performance and weight are made. Boron carbide has found considerable use in this application and new developments exploit the light weight of beryllium borides.
Author | : |
Publisher | : |
Total Pages | : 912 |
Release | : 1976-05 |
Genre | : Nuclear energy |
ISBN | : |
Download Nuclear Science Abstracts Book in PDF, Epub and Kindle
Author | : J. A. Cape |
Publisher | : |
Total Pages | : 38 |
Release | : 1969 |
Genre | : Heat resistant materials |
ISBN | : |
Download Thermal Properties of Refractory Materials Book in PDF, Epub and Kindle
Author | : John L. Margrave |
Publisher | : |
Total Pages | : 41 |
Release | : 1966 |
Genre | : |
ISBN | : |
Download Thermodynamic and Kinetic Studies of Borides and Other Refractory Materials at High Temperatures Book in PDF, Epub and Kindle
The reactions of elementary fluorine with several refractory elements (B, C, Si, Zr and Ir) and with several refractory compounds (TiC, TiB2, WC and W2B5) have been quantitatively observed and rate equations derived. The products of fluorination have isolated and studied to provide further information. For example, solid CF(x), the reaction product between graphite and F2 at low temperatures, has been thermally decomposed and the products characterized by gas chromatography and mass spectrometry. The high temperature drop calorimeter has been remodeled and is now capable of operation at temperatures up to 2000 K with the samples being contained in a refractory metal capsule (Ir, Ta or Mo) and heated inductively. Measurements up to the highest temperatures on the easily oxidized borides and carbides have not yet been made because of problems in obtaining capsules which can be tightly sealed. Several designs have been investigated. With a Pt-Rh alloy, one can approach 1500 C and several studies have been carried out. Gold capsules are being used for collection of data up to 1000 C and the measurements will be extended when the capsules are available. Fluorine bomb calorimetry is being applied for determination of heat of formation of refractory borides and oxides. (Author).
Author | : Jean-Claude G. Bünzli |
Publisher | : |
Total Pages | : 982 |
Release | : 1995 |
Genre | : Actinide elements |
ISBN | : |
Download Proceedings of the 2nd International Conference on F-Elements Book in PDF, Epub and Kindle
Author | : John L. Margrave |
Publisher | : |
Total Pages | : 9 |
Release | : 1965 |
Genre | : |
ISBN | : |
Download Thermodynamic and Kinetic Studies of Borides and Other Refractory Materials at High Temperature Book in PDF, Epub and Kindle
The fluorination rates of elementary boron, silican and carbon and of TiB2 have been determined over wide ranges of temperature and fluorine partial pressures. The thermal decomposition of solid CF has been shown by gas chromatographic and mass spectrometric techniques to yield a variety of perfluorocarbons with up to 16 carbon atoms. High temperature heat capacities have been measured and analytical expressions representing experimental data over wide ranges of temperature have been derived for several borides, carbides, nitrides and oxides. (Author).
Author | : |
Publisher | : |
Total Pages | : 170 |
Release | : 1976 |
Genre | : Catalysis |
ISBN | : |
Download Chemistry Division Annual Progress Report for Period Ending November 1, 1975 Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 694 |
Release | : 1974 |
Genre | : Thermochemistry |
ISBN | : |
Download Bulletin of Thermodynamics and Thermochemistry Book in PDF, Epub and Kindle