Temperature dependencies of spectral emissivity of some rare-earth dodecaborides single crystals Available to Purchase

There are presented the experimental data that determine the spectral emissivity ε_λ and its temperature dependence for a number of rare-earth dodecaborides single crystals (YB₁₂ [100], ErB₁₂ [100], [110], [111], HoB₁₂ [211], TmB₁₂ [110]). Using the black body model, the ε_λ values were calculated from the data of brightness and true temperature while heating dodecaboride single crystals in vacuum in the temperature range 1200 – 2000 K. There were studies the structure and phase composition of the near-surface layer of these crystals by scanning electron microscopy and X-ray phase analysis before and after their heating. It is shown that the ε_λ values and their temperature dependencies for rare earth dodecaborides single crystals are determined by phase composition and surface topography.