INFLUENCE OF FORMATION MODES ON CHARACTERISTICS OF POROUS MATERIALS FROM BASALT FIBERS
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Abstract
The article presents the results of studying the characteristics of porous materials based on basalt fiber obtained by radial pressing followed by sintering in air. Based on the analysis of images of structures, it is shown that the material is characterized by high porosity. The formation of pores between basalt fibers occurs by burning out the organic and polymer bonds. It has been established that sintering of basalt fiber at 1050 °С and 1100 °С forms a porous material with a structure characterized by a porosity of 52–75%, an average pore size of 8–18 μm, a permeability coefficient of (42–55) 10–12 m2, and a strength of compression 7–13 MPa. The results obtained prove that the porous material made of basalt fiber is able to provide better filtering characteristics compared to analogues.
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References
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