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The clay fraction of saponite-rich samples from western Macedonia, Greece was used for the preparation of TiO2 –pillared saponite. Nanocomposites of titania saponite were prepared by solvothermal reaction using water and ethanol as the solvent, hexamethylene tetramine as the precipitant and titanium trichloride as the precursor. Phase composition, particle morphology, element content and physical properties were characterized using X-Ray Diffraction (XRD), Scanning Electron microscopy with Microanalysis (SEM-EDS),...

Nowadays, the problem of fine micro-and nano-scale «invisible» gold, remains urgent, with the substantial loss of metal during enrichment of sulphide ores. Mineralogical studies show that the vast majority of native gold in sulphides is in the form of fine, dust and thin particles, with a subordinate amount is very small and petty. According to the confirmed reserves of gold, Kazakhstan is among the top ten countries of the world. The considered balance stock of deposits is 196 (126 autochthonous, 47 complex, 23 a...

The composite in Al matrix are the alloys with some refining elements like Ti, B, Sr, etc. need to know all the techniques used for refining the structure. That is why we describe the three techniques including the rapid cooling of the melting, the mechanical, the electromagnetic or the ultrasonically stirring of the melting and the adding of the sells or the pre-alloys in the melting.

An Investigation of explosive consolidation processes of W-Cu ultra-disperse and nano sized powder compositions are discussed. For theoretical calculations of the explosive loaded materials were used the hydrodynamic theory and experimental adiabatics of W and Cu. The stress-deformed state of the steel ampoule-containers was estimated using the solutions of elasticity theory. Copper tungsten (W-Cu) powder compositions were consolidated to full or near-full density by explosive-compaction technique. The industrial ...