6533b7d2fe1ef96bd125e052
RESEARCH PRODUCT
Physical and Chemical Principles of Obtaining Thermally Resistant Containers for Treatment of High Purity Niobium and Tantalum Compounds
E. KirkovaO. B. ShcherbinaM. N. PalatnikovN. V. SidorovK. BormanisE. VoinichA. FrolovV. T. Kalinnikovsubject
Materials scienceThermal resistanceTantalumNiobiumchemistry.chemical_elementengineering.materialCondensed Matter PhysicsThermal expansionElectronic Optical and Magnetic Materialschemistry.chemical_compoundCoatingchemistryvisual_artvisual_art.visual_art_mediumengineeringPentoxideCeramicNiobium pentoxideComposite materialdescription
Mathematical modelling of the distribution of strain in layered quartz ceramics with protective coating of niobium (tantalum) pentoxide from two sides is reported. It is found that fragmentation of the basic layer (decreasing the area of the continuous boarder between layers) and smoothing of sharp edges of the base fragments should reduce the strains on the boundary between the substrate and coating and, correspondingly, enhance the thermal resistance of the samples. Treatment of the niobium pentoxide coating by concentrated light induces a network of fractal micro- and nano-size fractures that compensates the difference of thermal expansion between the layers.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 | Ferroelectrics |