Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume Xvii Constitution of Ternary Ta mo c Alloys written by E. Rudy and published by . This book was released on 1967 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary system tantalum-molybdenum-carbon was investigated by means of X-ray, melting point, DTA, and metallographic techniques on chemically and thermally characterized specimens; a complete phase diagram for temperatures above 1500C was established. The observed phase relationships are thermodynamically analyzed and the calculated temperature sections are found to be in good agreement with the experimental observations. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by E. Rudy and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by C. E. Brukl and published by . This book was released on 1968 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon Silicon Systems Part Ii Ternary Systems Volume Xv Constitution of Niobium molybdenum carbon Alloys written by Erwin Rudy and published by . This book was released on 1967 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary alloy system niobium-molybdenum-carbon was investigated by means of X-ray, melting point, DTA, and metallographic techniques; a complete phase diagram for temperatures above 1500 C was established. Above 1960 C, niobium monocarbide and the cubic (B1) high temperature phase in the molybdenum-carbon system form and uninterrupted series of solid solutions. Six isothermal reactions occur in the ternary system; three correspond to class II-type four-phase reactions involving a liquid phase, one to a class I (eutectoid)-type, and two further isotherms are associated with limiting tie lines. The results of the phase diagram investigation are discussed, and the thermodynamic interpretation identifies the low relative stability of the binary subcarbides in conjunction with the large stability differences between niobium and molybdenum carbides as the cause for the formation of a stable equilibrium between the monocarbide and the metal phase in the ternary region.
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part 2 Ternary Systems Vol 1 Ta hf c System written by E. Rudy and published by . This book was released on 1965 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary alloy system tantalum-hafnium-carbon was investigated by means of X-ray, DTA, melting point, and metallographic techniques on chemically analyzed alloys, and a complete phase diagram for temperature above 1000 deg C was established. The system is characterized by a very high melting solid solution of the refractory monocarbides in both binary systems, and a limited exchange of hafnium in the low- and high-temperature modification of Ta2C. Four Class II four-phase reaction planes as well as three limiting tie lines occur in the concentration area metal-monocarbide solution. The results of this investigation are discussed and compared with previous, partial investigations of this system. Fields of application are outlined.
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by E. Rudy and published by . This book was released on 1965 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by E. Rudy and published by . This book was released on 1967 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part I Related Binary Systems Volume Iii Systems Mo b and W b written by Erwin Rudy and published by . This book was released on 1965 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the basis of X-ray, melting point, metallographic, and differential thermoanalytical studies on molybdenum-boron and tungsten-boron alloys, constitution diagrams for both binary systems are presented. In the high temperature regions, the newly established phase diagrams differ significantly from previously reported systems. The results are discussed and compared with available literature data. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part 1 Related Binary Systems Volume 5 Ta c System Partial Investigation in the Systems Nb c and V c written by E. Rudy and published by . This book was released on 1965 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alloy system tantalum-carbon was investigated by means of X-ray, DTA, and melting point techniques on heat-treated and chemically analyzed alloys; a complete phase diagram was established. Analogously to the findings in the Ta-C systems, a previously unknown phase reaction of the Nb2C phase was found to occur at high temperatures. The melting temperatures of the monocarbide phase and the NbC-C eutectic reaction isotherm were redetermined. The alpha- beta-Me2C-phase reaction could not be found in the vanadium-carbon system.
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume Xviii Constitution of Niobium tungsten carbon Alloys written by E. Rudy and published by . This book was released on 1969 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary alloy system niobium-tungsten-carbon was investigated by means of X-ray, melting point, DTA, and metallographic techniques on chemically and thermally defined specimens. A phase diagram from 1500C through the melting range was established. The solid state equilibria in the system are characterized by limited metal exchanges in the subcarbides and the occurrence of a two-phase equilibrium between the monocarbide and the metal phase. Above 2530C, niobium monocarbide and the cubic high temperature phase in the W-C system form an uninterrupted series of solid solutions; below this temperature, the tungsten exchange in NbC is temperature-dependent and decreases to approximately 25 At% W at 1500C. The tungsten exchange in Nb2C is less than 5 At% at all temperatures, whereas the solubility in W2C increases from 24 mole% Nb2C at 1500C, to a maximum of approximately 37 mole% Nb2C at 2600C. The order-disorder reaction, as well as the change-of-order transition, temperature in W2C and Nb2C are lowered by niobium additions, but the details of the transition reactions in the ternary could not be delineated. Five isothermal reactions, all of which involve a liquid phase, occur in the system. Two correspond to limiting tie lines and the remaining three are class II (two-over-two) ternary reactions. The results of this phase diagram investigation are discussed and the phase equilibria thermodynamically analyzed and interpreted. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume Viii Ta w c System written by E. Rudy and published by . This book was released on 1966 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary alloy system Ta-W-C has been investigated by means of X-rays, metallographic, melting point, and differentila-thermoanalytical techniques, and a complete phase diagram was established. Thermodynamic approaches for the interpretation and prediction of ternary alloy systems are briefly discussed and applied to the tantalumtungsten-carbon system. The thermodynamic data obtained from an evaluation of the system sections are compatible with previous values obtained from other carbide systems, and the calculated temperature sections and isopleths are in good agreement with the experimental observations. The results of this investigation are discussed and possible fields of applications outlined. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by E. Rudy and published by . This book was released on 1966 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume V Ti hf b System written by Y. A. Chang and published by . This book was released on 1966 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete phase diagram for the ternary alloy system titanium-hafnium-boron from 1000 C through the melting ranges of the diborides was established on the basis of X-ray, melting point and metallographic studies. The outstanding features of the system are that both the metal diborides and monoborides form continuous solid solutions with respect to metal exchange. From the distribution of the tie-lines in the metal monoboride two-phase field, the Gibbs free energy difference between the titanium monoboride and hafnium monoboride was derived. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part I Related Binary Systems Volume 4 Hf c System written by Erwin Rudy and published by . This book was released on 1965 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alloy system hafnium-carbon was investigated by means of X-ray, DTA, and melting point techniques on chemically analyzed alloys, and a complete phase diagram was established. The results are discussed and compared with previously reported data.
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume Iii Zr ta c System written by D. P. Harmon and published by . This book was released on 1965 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ternary zirconium-tantalum- carbon system was investigated using X-ray, DTA, melting point, and metallographic techniques on chemically analyzed alloys; a complete phase diagram for temperatures above 1000 C was established. The system contains a high melting continuous solid solution of binary monocarbide phases; a moderate zirconium-tantalum exchange occurs in both the high and low temperature modifications of the subcarbide, Ta2C. Two four-phase reaction planes and two limiting tie-lines are present in the metal-rich portion of the ternary diagram. A minimum melting point occurs in the zirconium-rich portion of the ternary. The results of this investigation are described and discussed; selection of alloys for general high temperature applications is discussed in the light of the results of the Zr-Ta-C investigation. A brief thermodynamical evaluation of the system is given along with a calculated isothermal section at 1500 C. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems Part Ii Ternary Systems Volume Xi Hf mo b and Hf w b Systems written by David P. Harmon and published by . This book was released on 1966 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1400 C isothermal sections of the ternary systems hafnium-Molybdenum-boron and hafnium-tungsten-boron have been investigated using X-ray and metallographic techniques. The phase equilibria in both systems are dominated by the hafnium diboride phase, and a new ternary phase was observed in both systems. Cursory melting point investigations were performed in the ternary systems; melting points of the pseudobinary systems HfB2-MoB2 and HfB2-W2B5 were also determined. (Author).
Download or read book Ternary Phase Equilibria in Transition Metal boron carbon silicon Systems written by E. Rudy and published by . This book was released on 1966 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
