Advances in Materials Science and Engineering / 2018 / Article / Fig 8

Research Article

Preparation of a New Borehole Sealing Material of Coal Seam Water Infusion

Figure 8

Microstructure comparison of three kinds of materials. (a) First day (×50). (b) Seventh day (×50). (c) First day (×500). (d) Seventh day (×500). (e) First day (×500). (f) Seventh day (×500).
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