Тип публикации: статья из журнала
Год издания: 2007
Идентификатор DOI: 10.1111/j.1744-7402.2007.02154.x
Ключевые слова: Aluminum, Anodes, Bending strength, Compressive strength, Corrosion rate, Electric conductivity measurement, Electrochemical corrosion, Percolation (solid state), Thermal conductivity, Thermal expansion, Aluminum production, Inert anode, Cermets
Аннотация: Cu(2)O/xCu (x=0-25 wt%) cermets were evaluated as a novel partially inert anode for aluminum (Al) production. The physical and mechanical properties, including the compressive strength, flexural strength, thermal expansion coefficient, thermal conductivity, and dc electrical conductivity were tested at room temperature and at tempeПоказать полностьюratures up to 950 degrees C. The coefficient of thermal expansion, compressive strength, flexural strength, thermal conductivity, and electrical conductivity of Cu(2)O/Cu cermets increased with increasing Cu content. High-temperature electrical conductivity measurements showed that with increasing temperature, the electrical conductivity increased when the Cu content was below the percolation threshold, while it decreased when the Cu content was above the percolation threshold. A relatively stable CuAlO(2) layer formed on the cermet surface during electrochemical testing, and the corrosion rate of this anode was estimated to be about 1.8-1.9 cm/year in Al production.
Журнал: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Выпуск журнала: Vol. 4, Is. 5
Номера страниц: 453-462
ISSN журнала: 1546542X
Место издания: MALDEN
Издатель: WILEY-BLACKWELL