Thermophysical properties of the Sołtmany meteorite

Bulk density, porosity and thermophysical properties of the Sołtmany meteorite have been determined. The mean bulk density of the meteorite is 3.475‧10³kg/m³, mean bulk density of the crust is 4.3‧10³ kg/m³, grain density 3.71‧10³ kg/m³, and porosity 6.4 ±} 0.4%. Mean specific heat capacity determined by DSC in temperature range between 223 and 823 K increases from 595 to 1046 J/(kg‧K), and is equal to 728 J/(kg‧K) at room temperature. Specific heat capacity of various samples is in the range 705–769 J/(kg‧K) at room temperature. Thermal capacity of Sołtmany chondrite is equal to 2.53‧10⁶ J/(m³‧K), thermal diffusivity (1.5–1.8)‧10^-6 m²/s, and thermal conductivity 3.9–4.5 W‧m–^-1‧K^-1at room temperature. Differential scanning calorimetry revealed two reversible phase transitions in the Sołtmany’s troilite: α/β transition at 423 K, and β/γ transition at 596.6 K.