Manganese silicide

Copper metal is a good flux for manganese silicides, since both manganese and silicon are highly soluble in copper. Manganese silicides are the most stable phases in the Cu—Mn—Si system at... 

V.N. Yeremenko, G.M. Lukashenko, V.R. Sidorko. Thermodynamic properties of vanadium, chromium and manganese silicides at elevated temperatures // Rev.Intern. Haut.Temp.Refract.- 1975.- V.12, No.3.- P.237-240. 

Control of Temperature Dependence of Thermoelectric Properties of Manganese Silicide by FGM Approach... 

The p-type manganese silicide sintered element used ia this investigation were formed in the shape of sintered (7mm in diameter) cylindrical pellets by means of the processing as shown in Pig.l. The raw materials of Mn(4ISI) and Si(4N) were mixed in the ratio of (Mn Si = 1 1.73) and directly melted by Radio-Frequency induction heating system in a graphite crucible under vacuum. The small amoimt of Ge was added in the raw material as a dopant. In order to... 

The enthalpies of formation of binary manganese-silicon, rare earth-tin, and rare earth-lead °" ° intermetallics have been measured by independent workers. Muradov has calculated the enthalpies of formation of manganese silicides (Table 26), on the basis of reaction (43), from the results of a... 

Naito, M., Nakanishi, R., Machida, N. et al. 2012. Growth of higher manganese silicides from amorphous manganese-silicon layers synthesized by ion implantation. Nuclear Instruments and Methods in Physics Research B 272 446 49. 

Manganese silicide has the empirical formula MnSi and melts at 1280 C. It is insoluble in water but does dissolve in aqueous HF. (a) What type of compound do you expect MnSi to be metallic, molecular, covalent-network, or ionic (b) Write a likely balanced chemical equation for the reaction of MnSi with concentrated aqueous HF. 

A study of the temperature dependence of the electrical conductivity, thermoelectric power, and thermal conductivity (F. 3,4) clearly confirms the semiconducting nature of the higher manganese silicide and alloys with similar compositions. The thermal width of the forbidden band is 0.5 0.15 eV. 

It is obvious that the quantitative composition of the higher manganese silicide, which has been clearly shown by direct chemical analysis, is fairly well established and is characterized by a silicon content of 47.13 0.13 wt.%. This composition is described by the molecular formulas MnSi -MnSi g or by the rational formula Mn Si. The alloy is homogeneous this is shown by results of microstructure and x-ray phase analyses. 

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