Претраживање
Приказ резултата 21-30 од 58
ZnTiO3 ceramic nanopowder microstructure changes during compaction
(International Institute for the Science of Sintering, Beograd, 2013)
ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also ...
Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy
(International Institute for the Science of Sintering, Beograd, 2005)
As a part of these experimental investigations of melt-spun Nd-Fe-B alloy with Nd rich content in relation to Nd2Fe14B prepared by rapid quenching process for optimally selected cooling rate and heat treatment, the influence ...
Two Step Sintering of ZnTiO3 nanopowder
(International Institute for the Science of Sintering, Beograd, 2017)
Metastable nanopowder ZnTiO3 was pressed into cylindrical compacts at 200 MPa. Compacts were treated by conventional heating with isothermal holding at 931 degrees C for 10 minutes, 25 minutes and 40 minutes. ZnTiO3 compacts ...
State of the Art and Challenges in Development of Electrical Contact Materials in the Light of the RoHS Directive
(International Institute for the Science of Sintering, Beograd, 2012)
The article surveys current state of the art and challenges in the development of the electrical contact materials in the light of the EU Directive on Restriction of Hazardous Substances (RoHS). The focus was placed on ...
Microstructure refinement and physical properties of Ag-SnO2 based contact materials prepared by high-energy ball milling
(International Institute for the Science of Sintering, Beograd, 2013)
High energy ball milling was used in order to improve dispersion of metal oxide in Ag-SnO2 electrical contact materials. The processed Ag-SnO2 (92:8) and Ag-SnO2In2O3 (87.8:9.30:2.9) powder mixtures were subsequently ...
The Bray-Liebhafsky oscillatory reaction: Kinetic investigations in reduction and oxidation pathways based on hydrogen peroxide concentration monitoring
(International Institute for the Science of Sintering, Beograd, 2000)
By direct monitoring of the hydrogen concentration during its catalytic decomposition into water and oxygen in the presence of potassium iodate and sulfuric acid, that is in the Bray-Liebhafsky system, the pseudo-rate ...
Investigation of the conditions of synthesis of optical fiber-magnetic powder composites
(International Institute for the Science of Sintering, Beograd, 2000)
The goal of these investigations was synthesis of optical fiber-magnetic powder composites with new application possibilities like sensors, detectors etc. Parts of results of the investigation of the possibility of embedding ...
The Effect of Sintering Temperature on Mesoporous Structure of WO3 Doped Tio(2) Powders
(International Institute for the Science of Sintering, Beograd, 2018)
In this study, WO3 doped TiO2 powders were synthesized via sol-gel method combined with a hydrothermal process. The effect of sintering temperature on mesoporous structure and catalytic activities of these powders were ...
Modeling of coating optical fibers with polymer-magnetic powder composite coating
(International Institute for the Science of Sintering, Beograd, 2002)
A mathematical model of forming a composite coating on optical fiber was established. The model is based on existing mathematical models for coating optical fibers with polymer coating and experimentally defined rheological ...
The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide
(International Institute for the Science of Sintering, Beograd, 2001)
The Bray-Liebhafsky (BL) oscillatory reaction, as a reaction where hydrogen peroxide decomposes into the water and oxygen in the presence of iodate and hydrogen ions through a complex mechanism involving a number of ...