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Binary systems. Part 2: Elements and Binary Systems from B – by P. Franke, D. Neuschütz (auth.), P. Franke, D. Neuschütz

By P. Franke, D. Neuschütz (auth.), P. Franke, D. Neuschütz (eds.)

The current subvolume IV/19B2 kinds the continuation of IV/19B1 and comprises evaluated info for components and Binary platforms from B-C to Cr-Zr showing in alphabetic order of the weather within the chemical formulae. the quantity is followed by way of a CD, which permits machine calculation of quite a number resolution homes for chosen temperature and section composition levels for the structures awarded in that individual quantity. Graphical representations, together with the calculated part diagram for every method, also are attainable. details on extra complete software program, permitting complicated equilibrium calculations concerning either natural ingredients and answer levels of alternative forms (e.g. slags, salt platforms, aqueous options, etc.), could be received from SGTE participants. a listing of the SGTE club is gifted within the conceal pages of this volume.

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B. , Materials Park, Ohio, 1988, pp. 43–46. Scientific Group Thermodata Europe: “Thermodynamic Properties of Inorganic Materials compiled by SGTE”, Landolt-B¨ornstein New Series IV/19A1, Springer Verlag, Berlin Heidelberg, 1999. -K. Liu, Y. G. X. Xi, Q. Li: Calphad 25 (2001) 299–303. Landolt-B¨ornstein New Series IV/19B 2 Binary Systems: B – Mo 1 B – Mo (Boron – Molybdenum) Fig. 1. Calculated phase diagram for the system B-Mo. The application of transition metal borides is based on their unique combination of high melting points, hardness, good electrical and thermal conductivities, chemical inertness and corrosion resistance.

The high hardness, chemical inertness and their electrical conductivity makes tungsten borides, also combined with carbon, interesting for abrasive, corrosion-resistant and certain electrode materials. The recommended assessment [95Dus] takes into account phase diagram data throughout the whole composition and temperature range, except for very high temperatures where no data are available for the liquidus in equilibrium with tungsten. Furthermore, the optimisation takes into account the solubility of B in solid W as well as calorimetric data for the compounds WB, W2 B, and W2 B5 .

Kleppa: J. Chem. Thermodyn. 17 (1985) 1003-1016. E. K. Liao: Bull. Alloy Phase Diagrams 11 (1990) 321–324. B. Sundman, unpublished work, 2002. Landolt-B¨ornstein New Series IV/19B SGTE 2 Binary Systems: B – Si 1 B – Si (Boron – Silicon) Fig. 1. Calculated phase diagram for the system B-Si. The B-Si system is of interest for the production of ceramics and hard materials, semiconductor doping and refinement of steel and alloys. A review of phase equilibria and thermodynamic measurements is presented in [84Ole, 01Zai].

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