Study on Microstructure Differences of Coal Samples before and after Loading

Figure 10

Scanning electron micrograph of coal body before and after loading. (a) Before loading100 (100 times). (b) After loading (100 times). (c) Before loading (500 times). (d) After loading (500 times). (e) Before loading (2000 times). (f) After loading (2000 times). (g) Before loading (5000 times). (h) After loading (5000 times).

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(b)

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(h)