Experimental research was carried out to produce pellets from bauxite residue for the further extraction of iron and alumina. Bauxite limestone with three different mixture compositions were pelletized experimentally via agglomeration followed by drying sintering at elevated temperatures. X-Ray diffraction (XRD) scanning electron microscopy (SEM) used phase microstructural analysis, respectivel...

This research is focused on structural and electrical characterisation of tin oxide (SnO2) applied as a thick film and investigation of its properties as gas sensitive material. Micron sized SnO2 powder was milled in an agate mill for six hours to fabricate SnO2 nanopowder, which was afterwards sieved by 325 mesh sieve and characterized by XRD and SEM. This powder was used as functional part in...

Abstract. Porous ceramics are recognized to have the potential be used for a wide variety of industrial applications, such as catalyst support and molten metal filter. It is common practice adjust shape in pre-sintering stage order obtain various configurations but some limitations due premature failure product, marked tool wear or inhomogeneous shrinkage during processing stages may arise, whe...

The purpose of this study is to evaluate the fitting accuracy and fracture resistance of crowns using a hybrid zirconia frame made of both porous and dense zirconia. Commercial semi-sintered zirconia, sintered dense zirconia and sintered hybrid zirconia were used. Sintered zirconia was milled using the CAD/CAM system, and semi-sintered zirconia was milled and sintered to fabricate molar crown f...

This paper describes thermoelectric properties of La-doped SrTiO3 prepared by using a combination of combustion synthesis (CS) with post spark plasma sintering (SPS), on which effects of sintering temperature were mainly examined. In experimental, combustion-synthesized (CSed) samples (Sr1 xLaxTiO3, x 1⁄4 0:08) were spark-plasma-sintered (SPSed) at temperatures from 1513 to 1663K and the thermo...

The healing process after implantation of sintered bone in the rat parietal bone was compared with that of synthetic hydroxyapatite using both scanning electron and light microscopy. The results showed that the differences between the sintered natural bone and the synthetic hydroxyapatite implantations were in the states of bone union and the bioresorbability of the implanted materials, even th...