Now showing items 21-25 of 25
Effect of compaction pressure on structural and superconducting properties of Bi-2223 superconductors
In this work, effects of compaction pressure on the structural and superconducting properties of BSCCO ceramic superconductors were investigated. The study was carried out on two systems which were, System I: Bi 1.7Pb 0.3Sr ...
Preparation and microstuructural development of nanocrystalline titania and alumina
(Trans Tech Publications, 2004)
The preparation of nanocrystalline titania and alumina was investigated by sol-gel methods using titanium isopropoxide, boehmite and aluminum isopropoxide. Various drying control chemical additives like oxalic acid, ...
The effect of rare earth element doping on the microstructural evolution of sol-gel titania powders
The development of a better understanding of the low temperature nanophase evolution of high surface area titania (TiO2) based powders is essential for their use in photocatalytic applications. A series of rare earth (RE) ...
Thermal behaviour of a zeolitic tuff
Natural zeolites undergo structural changes after heating which open their possible use in different fields, related to their chemical and physical properties, such as building stone, lightweight aggregate, ceramic foam, ...
The effect of Zn substitution of Ca in BiPbSrCaCuO superconductors sintered at 830°C
The effect of partial substitution of Ca by Zn in Bi 1.7Pb 0.3Sr 2Ca 2-x Zn x Cu 3O y at x=0.00, 0.05, 0.10, 0.15 and 0.20 levels on the electrical and structural properties was investigated in this work. The characterization ...