Studies on the synthesis and characterization of a molybdenum-based alloy

Studies on Synthesis and Characterization of Mo Based In Situ Composite by Silicothermy Co-reduction Process

“…The details of the experimental setup are described elsewhere. [12,13] The reaction was finally initiated by bringing a freshly pickled burning magnesium ribbon in contact with the trigger mixture. The reaction was vigorous; however, it was well controlled.…”

“…In metallothermy, it is customary to use excess reductant in the charge over a stoichiometric amount to increase the yield of the product by leading the reaction to completion. [12,13] Therefore, in the second experiment (Table I), 5 pct excess Si over the stoichiometric amount and 5 g CaO were added along with the desired amount of heat booster to keep the specific heat in the desired range. Although the yield increased marginally, the corresponding slag-metal separation was only good.…”

“…In this process, metal oxides are coreduced simultaneously by a reductant that could be anyone or a combination of Al, Si, Ca, B, Mg, and so on and the reactions, which when triggered, goes to completion because of their own exothermic heat. [11][12][13] The thermite process has many distinct advantages over other melting processes such as a relatively high proportion of metallic products, low processing cost, fast process rate, high energy and time efficiency, may require external heating from a hightemperature furnace, flexibility of batch size, and so on. Therefore, an attractive and affordable alternative can be provided by thermite smelting as compared with the conventional methods for producing advanced ceramics, ceramic composites, and intermetallic compounds.…”

“…This technique has been successfully used to make commercially important molybdenum-based alloys such as TZM and TZC. [12,13] In the present study, attempts were made to prepare a Mo-16Cr-4Si (wt pct) alloy with the co-reduction smelting technique using Si as a reductant. The corresponding aspects of thermodynamic and reaction sequences have been studied, and the reduced alloy has been characterized for composition, phases, microstructure, hardness, and oxidation behavior.…”

Studies on synthesis and microstructure evolution of multiphase in-situ composites based on Mo-Cr-Si system

“…In the present study attempt have been made to prepare Mo-16Cr-4Si (hypo peritectic) Mo-9Cr-11Si (hypo eutectic) (Wt.%) alloy by co-reduction smelting technique using Si as reductant. This technique has been successfully used for making commercially important molybdenum based alloys such as TZM and TZC [16,17].…”