Synthesis and Characterization of Cobalt Monosilicide (CoSi) with CsCl Structure Stabilized by a β‐SiC Matrix
作者： Dirk Walter , I W. Karyasa
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摘要: In the Co/Si/C system a new CoSi (CsCl type) modification besides s-SiC and carbon is observed after sintering process of elements at temperature 1400 °C (4 h; vacuum). The structure cobalt monosilicide was determined by X-ray powder diffraction methods subsequent Rietveld refinement. crystallizes in cubic space group (no. 221) with lattice parameters = 281.62(2) pm (V= 22.337(7) × 106 pm3). However, Co/Si only well known e-CoSi (FeSi same reaction conditions. It supposed that β-SiC takes an important role stabilizing type). Electron microscopy experiments (SEM EDX) confirm surrounded matrix containing small amount carbon. thermal stability synthesized samples studied. Furthermore, density states (DOS) calculated.
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