Phase relations and diffusion paths in the Ti-Ni-Co system at 900 °C

Abstract

summaryWe determined the isothermal cross section through the ternary phase diagram Ti-Ni-Co at 900 "C by means of the diffusion couple technique and by the investigation of equilibrated alloys. The course of a number of diffusion paths was established. Use was made of optical, microprobe and X-ray analyses.

Processing and thermal properties of an Mo5Si3C–SiC ceramic

“…At 900 and 1100 C, Mo 5 Si 3 , Mo 2 C and a trace amount of Mo 5 Si 3 C 1 (at 1100 C only) were detected along with SiC. A study by van Loo et al [12] on the Mo-Si-C system reported the formation of Mo 5 Si 3 , Mo 2 C and Mo 5 Si 3 C at 1200 C, which agrees well with the analysis at 1100 C in the present study. At 1300 C, both Mo 5 Si 3 C 1 and Mo 2 C were detected.…”

“…(4) is expected to proceed in the presence of high concentrations of molybdenum and will produce a mixture of molybdenum silicide and molybdenum carbide. The Mo-Si-C phase diagram by van Loo et al [12] (1200 C isothermal section) indicates that Mo 5 Si 3 can be in equilibrium with SiC at 1200 C. However, Mo 2 C is not stable with SiC at this temperature and is consumed through reaction (6). As identified in Fig.…”

Diffusion multiple study of Co-Ni-Ti system at 1073 K

“…Due to the importance of the Co-Ni-Ti system for industrial application, thermodynamics and phase relations of this system have attracted a lot of investigations [5][6][7][8][9][10][11]. Isothermal sections of this system have been determined for 1373K [12], 1173K [5,7], 1123K [6], and 1073K [10], where one ternary phase _Ti(Ni0.5Co0.5)3 was reported [5]. Riani et al [7] critically assessed this system.…”

“…Taguchi et al [19] reported the reaction diffusion in for the Co-Ti system and the layer growth of Co3Ti and CoTi2. Mutual diffusion in the system Co-Ni-Ti wasere investigated by Gryzunov et al [10,20] and Van Loo et al [5]. However, No no diffusion parameters of bianry the binary phases in corresponded system were reported.…”

Phase equilibria in the Fe–Ti–Zr system at 1023K

“…So far, a serial of ternary systems related to the nine-element system such as Fe-Ni-Ti [17], Fe-Ni-Zr [18], Cu-Fe-Ti [19], Cu-Ti-Zr [20], Co-Cu-Ti [21], Ni-Ti-Co [22], Ni-Cr-Ti [23], Co-Ti-Zr [24], Co-Cr-Zr [25], Cu-Cr-Zr [26] and Ti-Cr-Mn [27] have been well carried out. Some other ternary systems related to the nine-element system need to be further researched.…”