Journal
POWDER METALLURGY AND METAL CERAMICS
Volume 58, Issue 5-6, Pages 329-333Publisher
SPRINGER
DOI: 10.1007/s11106-019-00082-z
Keywords
aluminum dodecaboride; aluminum nitride; electrochemical polarization
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Electrochemical processes occurring on ceramic AlB12-AlN composites induced by polarization in a 3% NaCl aqueous solution at 37 degrees C are examined for the first time. Aluminum dodecaboride AlB12 is found to dissolve so slowly that it hardly influences the composites' corrosion resistance in actual environments. A higher aluminum nitride amount in the composite increases its electrochemical corrosion resistance. The electrochemical behavior of aluminum dodecaboride and ceramic nitride composites generally allows the materials to retain their service properties in natural corrosive environments even at 37 degrees C.
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