A comparative analysis of the characteristics main types bolometers is indicated in article. The constructive solution an uncooled thermal detector bolometric type, formed using technology microelectromechanical systems, studied. By means computer simulation modern computer-aided design systems microelectronics, a static mechanical was performed to assess effect stresses arising structural mate...

NiCr alloys with different components were obtained by pack chromation and homogenization heat treatment of octet Ni lattice. The microstructure, alloy composition, microhardness quasi-static compression properties the lattice tested. results showed that after treatment, had an austenitic structure uniform composition. Compared pure nickel lattice, microhardness, compressive strength, elastic m...

Abstract The NiCr micro-heater is a key element of MEMS-based electro-explosive device (mEED), while electrostatic discharge (ESD) may excite the accidentally. To discover mechanism that how ESD excitations effect on heat response performance micro-heater, electro-thermal conversion process was numerically modelled by using commercial software. Three different shapes micro-heaters, including re...

Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot resistance DSC was found to be superior their APS counterparts. Chromia spinel oxides provided excellent while no ?-Al2O3 observed. NiCoCrAlY offered th...

In this work, three composite structures of nickel-aluminum bronze (NAB) bonded with SUS630 stainless steel different intermediate layers were fabricated by laser deposition. The microstructure and corrosion behavior NAB in 3.5 wt.% NaCl solution studied. coating directly deposited on substrate contains a large number Fe-rich dendrites due to the dilution energy Cu-Fe liquid phase separation ch...

Cemented carbides are highly resistant to abrasion, erosion and sliding wear frequently used in drilling cutting tool operations. In the present investigation, different submicrometric (0.8 µm) WC (tungsten carbide)-based composites were developed, containing various binders of Co, Ni, NiCr, NiMo, NiCrMo. The main objective work was simultaneous tribological electrochemical characterization inv...