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Your search for scanning electron microscopy resulted in 12 matches...

SCANNING EXAMINATIONS OF MAGNESIUM- AND LITHIUMBASED ALLOYS OF TWO-PHASE α-β AND MONOPHASE β STRUCTURE


The study presents the results of examinations carried out on ultra-light magnesium- and lithiumbased alloys of two-phase α-β structure and monophase β structure using scanning electron microscopy w...

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TRIALS TO FABRICATE BY MECHANOSYNTHESIS A CuXAlY – BASED COMPOSITE REINFORCED WITH Al2O3 PARTICLES


The study describes the attempts to use a mechanochemical synthesis in the fabrication of composites based on Cu-Al intermetallic compounds reinforced with homogeneously distributed ceramic Al2O3...

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EFFECT OF ZINC CONTENT AND TEMPERATURE ON COPPER SOLDERABILITY WITH Sn-xZn (x = 4.5; 90; 95 wt.%) ALLOYS


The aim of this study was to determine the effect of temperature and Zn content on the solderability of Cu substrates with liquid Sn-xZn alloys (4.5; 90; 95 wt.% Zn). Solderability tests were carried out by the wetting balance test which allows th...

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EFFECT OF ZINC CONTENT AND TEMPERATURE ON NICKEL SOLDERABILITY WITH Sn-xZn (x = 4.5, 90, 95 wt%) ALLOYS


The aim of this study was to determine the effect of temperature and zinc content on the solderability of nickel substrates with liquid Sn-xZn alloys (4.5, 90, 95 wt% Zn). Solderability tests were carried out by the wetting balance method which al...

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EFFECT OF SUBSTRATE OXIDATION OF NICKEL ON WETTING BEHAVIOUR IN INDUSTRIAL ALLOY 226D/Ni SYSTEM


The aim of this study was to determine the impact of technological factors (surface treatment and contact time) on the kinetics of wetting of nickel substrates by a liquid aluminum alloy. Wetting kinetics studies were carried out in vacuum at 700&...

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Thermophysical properties of Ag-C composites doped with carbon nanotubes


The paper presents results of preliminary studies on Ag-C materials obtained using the powder metallurgy (PM) method with carbon nanotube doping. Based on structural tests performed using scanning electron microscopy a...

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Effect of phosphorus content on the wettability of Ni-P coated surfaces by SAC305 alloy


The aim of this study was to determine the effect of the chemical composition of Ni-P coating on the wettability kinetics of SAC305 liquid solder in contact with the Ni-P coating. The study was conducted in vacuum, at 230°C, for 5 minutes, usi...

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The influence of the drop-size effect on the wetting kinetics in SAC305/Ni system


The studies of the drop-size effect on the wetting kinetics of the nickel substrate by lead-free solder were performed by the sessile drop method in a vacuum at a temperature of 260°C.In this work, Sn-based alloy SAC305 (Ag - 3.0 wt. %, ...

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Thermophysical properties of Cu-C composites obtained by powder metallurgy


Studies of composite materials of the Cu-C type with additives of different forms of carbon (carbon nanopowder, carbon nanotubes and reduced graphene oxide) were performed by the powder metallurgy method. Based on the structural tests conducted by...

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Surface analysis and chemical composition of dust from dry dedusting system of moulding sand with bentonite using scanning electron microscopy (SEM)


The article presents the results of surface morphology of dust from dry dedusting of moulding sand with bentonite and mixtures of bentonite with lustrous carbon carrier using scanning electron microscopy. The study identifies the approxi...

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A comparison of various imaging modes in scanning electron microscopy during evaluation of selected Si/refractory sessile drop couples after wettability tests at ultra-high temperature


In this work, FEI SciosTM field emission gun scanning electron microscope (FEG SEM) equipped with a unique combination of analytical and imaging detectors was utilized to examine structure and chemistry of selected Si/refractory couples...

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High-temperature interaction of molten vermicular graphite cast iron with Al2O3 substrate


The wetting behavior and reactivity between molten cast iron (originally vermicular graphite cast iron, containing in wt. %: 3.70 C, 2.30 Si, 0.44 Mn, 0.054 P, 0.017 Mg, 0.015 S) and commercial polycrystalline alumina (Al2O3 ...

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