Fabrication of Basalt Matrix Composite Material by Pressureless Aluminum Melt Infiltration in Air Atmosphere

نویسندگان

چکیده

The microstructure of Basalt matrix composite materials produced by pressureless aluminum melt infiltration at 950 °C was investigated. It is established that uniform elements distribution observed within the whole sample depth. Interestingly, content variation considerably matches hardness profile connected with alumina phase presence. Sample color changes during temperature treatment due to transitions were observed. appearance hematite (Fe2O3) makes initial preform red. After molten aluminum, oxygen-deficient alumosilicate phases turn black. process decreases porosity insufficiently a partial reduction alumosilicates Al and infiltrated samples only 2.2 GPa. Nevertheless, huge thermal conductivity rise from 1.45 4.53 W/(m·K), along fracture toughness increase, prospective wear-resistant material. Moreover, developed low-temperature production technology allows for obtaining very cost-effective

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ژورنال

عنوان ژورنال: Ceramics

سال: 2022

ISSN: ['2571-6131']

DOI: https://doi.org/10.3390/ceramics5040056