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SiC synthesis using domestic mineral resources
(Processing and Application of Ceramics, 2011)
The possibility of using domestic Mg-silicate (sepiolite, white) as Si source and novolac resin (as carbon source), for synthesis of fine β-SiC powder at relatively low temperatures (1673-1873 K), was demonstrated. Obtained ...
Characterization of bentonite clay from 'Greda' deposit
(Processing and Application of Ceramics, 2011)
Based on mineralogical and technological investigations of the deposit 'Greda' important characteristics of bentonite clay were determined. Representative samples of the deposit were characterized with X-ray diffraction, ...
Synthesis and characterization of (Ba, Yb) doped ceria nanopowders
(Processing and Application of Ceramics, 2011)
Nanometric size (Ba, Yb) doped ceria powders with fluorite-type structure were obtained by applying selfpropagating room temperature methods. Tailored composition was: Ce0.95-xBa0.05YbxO2-δ with fixed amount of Ba - 0.05 ...
Fabrication of ZrC/SiC, ZrO2/SiC and ZrO2 powders by carbothermal reduction of ZrSiO4
(Processing and Application of Ceramics, 2011)
The zirconia/silicon carbide (ZrO2 /SiC) and ZrO2 powders are prepared by carbothermal reduction of natural mineral zircon (ZrSiO4). The zircon powder was mixed with activated carbon as a reducing agent and heattreated in ...
Investigation of Cl- and So4 2- anion absorption in natural soils
(Processing and Application of Ceramics, 2011)
In this paper, the results of vertical migration of chloride and sulphate anions in soil are presented. The soil was contaminated with NaCl and CuSO4. Anions migration were monitored during one hydrological year (425 days). ...
Ion-beam irradiation effects on reactively sputtered CrN layers
(Processing and Application of Ceramics, 2011)
This paper presents a study of microstructural changes induced in CrN layers by irradiation with 120 keV argon ions. The layers were deposited on (100) Si wafers, at different nitrogen partial pressures (2×10^-4, 3.5×10^-4 ...
Structural changes induced by argon ion irradiation in TiN thin films
(Processing and Application of Ceramics, 2011)
In this work, the effects of 120 keV Ar+ ion implantation on the structural properties of TiN thin films were investigated. TiN layers were deposited by d.c. reactive sputtering on Si(100) wafers at room temperature or at ...
Synthesis and characterization of carbon cryogel/zeolite composites
(Processing and Application of Ceramics, 2011)
A novel method for synthesis of carbon cryogel/zeolite composites was obtained. Method considers forming of carbon cryogel from the sol-gel polycondenzation of resorcinol and formaldehyde, followed by freeze drying, and ...