Preparation and Stability of Inorganic Solidified Foam for Preventing Coal Fires

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="347386.fig.004a" src="https://static.hindawi.com/articles/amse/volume-2014/347386/figures/347386.fig.004a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Produced by mechanical agitation</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="347386.fig.004b" src="https://static.hindawi.com/articles/amse/volume-2014/347386/figures/347386.fig.004b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Produced by the home-made foam generator</td></tr></table></td></tr></table>

<table>The optical microscopic analysis diagram of aqueous foam.</table>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Preparation and Stability of Inorganic Solidified Foam for Preventing Coal Fires 