Fig. 12
From: Experimental study on mechanical and permeability behaviors of sandstone under real-time temperature

Sandstone micromechanics behavior of sandstone at different temperatures. (a) Specimen loading and selection of microelements, (b) Characteristics of microstructural changes in the state from 25 °C to 65 °C, (c) Characteristics of microstructural changes in the state from 75℃ to 95℃.