| Autor: |
Purenovic, J., Mitic, V. V., Paunovié, V., Purenovic, M. |
| Předmět: |
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| Zdroj: |
Journal of Mining & Metallurgy. Section B: Metallurgy; 2011, Vol. 47 Issue 2, p157-169, 13p, 3 Black and White Photographs, 1 Chart, 10 Graphs |
| Abstrakt: |
Kaolinite and bentonite clay powders mixed with active additives, based on Mg(NO3)2 and Al(NO3,)2, sintered at high temperatures produce very porous ceramics with microcrystalline and amorphous regions and highly developed metalized surfaces (mainly with magnesium surplus). Microstructure investigations have revealed non-uniform and highly porous structure with broad distribution ofgrain size, specifically shaped grains and high degree of agglomeration. The ceramics samples were characterized by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray diffraction analysis (XRD) and JR speciroscopy analysis, prior and after treatment in "synthetic water ", i.e. in aqueous solution of arsenic-salt. Grain size distribution for untreated and treated samples was done with software SemAfore 4. It has shown great variety in size distribution of grains from clay powders to sintered samples. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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