Titanium-iron alloys

Nickel—Iron and Cobalt—Iron Alloys. Selenium improves the machinabifity of Ni—Ee and Co—Ee alloys which are used for electrical appfications. Neither sulfur nor tellurium are usefiil additives because these elements cause hot britdeness. The addition of 0.4—0.5% selenium promotes a columnar crystal stmcture on solidification, doubling the coercive force of cobalt—iron-titanium alloy permanent magnets produced with an equiaxial grain stmcture. 

Iron—manganese alloy, see Ferromanganese, 4383 f Iron pentacarbonyl, see Pentacarbonyliron, 1808a Iron pyrites, see Iron disulfide, 4395 Iron—silicon alloy, see Ferrosilicon, 4384 Iron—titanium alloy, see Ferrotitanium, 4385 t Isobutene, see 2-Methylpropene, 1577 t Isobutyl acetate, 2496... 

This particular iron/titanium alloy requires a pressure of 400 psig to charge effectively. Lower pressures can be used to charge the alloy, but it will not charge to its full storage capacity. 

In iron titanium alloy FeTi + H2 FeTiH2 FeTi 2(H°)... 

The trap theory is supported by experimental results for iron-titanium alloys in which the density of reversible and irreversible traps was varied [67]. Increasing the density of reversible traps, for example, was found to decrease the susceptibility to intergranular cracking, as described above. Reversible traps in the form of PdAl precipitates likewise appear to play an important role in suppressing intergranular cracking of a palladium-modified... 

Hackett et al. (2007) reported experiments with DCFCs where rods prepared from different carbon materials were used as the anodes. The cathodes were made from iron-titanium alloy. Melts of NaOH at temperatures in the range 600 to 700°C were used as the electrolyte. The most stable operation with high performance figures was obtained with graphite anodes. The OCV value was 0.788 V. At the optimum temperature of 675°C, the voltage was 0.45 V at a current density of 140 mA/cm. Anodes made of other carbon materials had higher OCVs (up to 1.044 V), but exhibited inferior and less stable performance when current was drawn. The equation for the anodic reaction in NaOH melt can be written as... 

Catalysts for ammonia synthesis made from iron-titanium alloys. M. N. Ozyag-cilar (The Rafet Industrial Group). DE 2821972 (1978) US-A 799099 (1977) US-A 801908 (1977). 

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