Shock and Vibration / 2020 / Article / Fig 7

Research Article

Experimental Investigation of the Use of Expansive Materials to Increase Permeability in Coal Seams through Expansive Fracturing

Figure 7

SEM images for expansive material. (a) Sample before hydration at 2,500x. (b) Sample before hydration at 10,000x. (c) Sample after hydration at 2,500x. (d) Sample after hydration at 10,000x.
(a)
(b)
(c)
(d)

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.