High-Density Ceramics of Al2-xMex WO43, Me = Sc or In Solid SolutionsReport as inadecuate




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Al2-xMexWO43,Me is Sc or In; x varies from 0 to 2 ceramics are sintered by two methods: 1 cold pressing with subsequentsintering at different temperatures and durations and 2 hot pressure sintering. The rowmaterials are nanoparticles with average particle size of 20, 90 and 200 nmobtained by co-precipitation method. Density, particle size and anisometricityof the obtained ceramics are tested. The results show that optimal initialnanosized dimensions and optimal pressing conditions are needed to obtaincompact ceramics. The hot pressure method provides possibilities for obtainingceramics with a density of about 99.8%. These ceramics possess some level oftransparency.

KEYWORDS

Ceramics; Sintering; Compaction; Electron Microscopy SEM

Cite this paper

I. Koseva, A. Yordanova and V. Nikolov -High-Density Ceramics of Al2-xMex WO43, Me = Sc or In Solid Solutions,- New Journal of Glass and Ceramics, Vol. 3 No. 4, 2013, pp. 104-110. doi: 10.4236-njgc.2013.34017.





Author: Iovka Koseva, Aneliya Yordanova, Velin Nikolov

Source: http://www.scirp.org/



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