Now showing items 1-10 of 232
Influence of barium and strontium addition on the ratio c/a of PZT obtained by the polymeric precursor method
Lead zirconate titanate powder, with Zr/Ti ratio of 50/50 was prepared by Pechini method after adding up to 10,0 mol% of Ba +2 and Sr +2 ions. Tetragonal phase is favored by the increase of barium and strontium concentration ...
Powder Diffraction of Components Subject to Corrosion in Fuse Cutouts with CeramicInsulation
(Trans Tech Publications Ltd, 2008-01-01)
Aiming identification of the components most affected by corrosion under saline environment conditions, we have carried out X-ray diffraction measurements in ceramic and bond materials, all in the powder form. The ceramic ...
X-ray powder diffraction analysis as a toll in mineral exploration for agromineral evaluation.
(In: WORLD FERTILIZER CONGRESS OF CIEC, 16., 2014, Rio de Janeiro. Technological innovation for a sustainable tropical agriculture: proceedings. Rio de Janeiro: International Scientific Centre of Fertilizers, 2014., 2014)
Reactive sputter magnetron reactor for preparation of thin films and simultaneous in-situ structural study by X-ray diffraction.
(Laboratório Nacional de Luz SíncrotronCampinas, 2013-02-26)
Reactive Sputter Magnetron (RSM) is a widely used technique to thin films growing of compounds both, in research laboratories and in industrial processes. The nature of the deposited compound will depend then on the ...
Nanoparticles of La1-xSrxMnO3 compounds
A nanoparticles of La1-xSrxMnO3 were synthesized using homogenous coprecipitation method. The precipate was washed with water and dried at 80 °C. The samples were characterized by X-ray powder diffraction, transmission ...
Diffuse Effect of the Tungsten Doped Ba(Zr0.10Ti0.90)O3 Ferroelectric Ceramics
Barium zirconate titanate Ba(Ti0.90Zr0.10)O3 ceramics doped with WO<inf>3</inf> (BZT:2W) have been prepared by a traditional solid phase reaction. The effect of temperature on the structural and electrical properties was ...
New developments for lignocellulosics-nanocomposites with low carbon footprint
Cellulose nanofibrils have been evaluated as reinforcement material in polymeric matrixes due to their potential to improve the mechanical, optical, and dielectric properties of these matrixes as well as its environmental ...
Crystal structure refinement of Co-doped lanthanum chromites
(J C P D S-int Centre Diffraction Data, 2008-06-01)
Results of crystal structure refinements and phase quantification for samples of Co-doped lanthanum chromites with nominal composition LaCr(1-x)Co(x)O(3), for x=0.00, 0.10, 0.20, and 0.30, prepared by combustion synthesis ...
Efficiency evaluation of ZrB2 incorporation in the MgB 2 matrix phase using high-energy milling
The present study suggests the use of high energy ball milling to mix (to dope) the phase MgB2 with the AlB2 crystalline structure compound, ZrB2, with the same C32 hexagonal structure than MgB 2, in different concentrations, ...
Variables Involved in the Planting of Rice in the Rice Husk
(Trans Tech Publications Ltd, 2012-01-01)
Rice production in Brazil in 2010 was approximately 12,2 million tons, and to reach that amount several planting techniques were used with different strains of rice in different rice-growing areas. Since Rice Husk Ash (RHA) ...