Search again:



Your search for wettability resulted in 13 matches...

EFFECT OF TESTING CONDITIONS AND OXIDATION ON WETTING BEHAVIOUR IN Al/Ni SYSTEM


The wettability tests were carried out under a vacuum at 700°C in the drop/substrate couples, where drop is pure aluminium (99.999%), substrate - Ni (99.8%) and Niox (oxidized). Test were carried out...

more >>


NICKEL LAYER DEPOSITION ON INVESTMENT CASTING POLYMER PATTERNS


The article presents a method of modification of ceramic mould surface on the boundary between lost-wax model - ceramics by using a layer of nickel on a disposable model made of a specified type of polymer e.g. polymethyl methacrylate (PMMA) and t...

more >>


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&...

more >>


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...

more >>


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. %, ...

more >>


Assessment of quartz wettability by the ecological foundry binder modified with nanoparticles of metal oxides


The results of studies of quartz wettability by an ecological foundry binder are presented. Water glass modified with nanoparticles of metal oxides, such as: MgO, Al2O3 and ZnO in organic solvents (methanol or propanol) was u...

more >>


The effect of wetting agent on the parameters of dry moulding silica sands bonded with sodium water glass


An attempt has been made to determine the effect of the addition of an agent wetting the surface of silica sand grains, introduced in order to increase the hardening efficiency of selected physical methods applied to the ecological foundry sands b...

more >>


Perspectives and directions of the development of new generation lead-free soldering alloys and their application possibilities in the consumer electronics lead-free soldering technology


The new technological challenges and the high economical and commercial potential connected with the development of new generation soldering alloys used in the consumer electronics lead-free soldering technology is a subject which is gaining incre...

more >>


Wettability, reactivity and interfaces in the Gd/TiO2 system


High-temperature interaction of liquid Gd in contact with dense, polycrystalline TiO2 substrate, was investigated. Wettability and reactivity tests were carried out at two different temperatures (1362°C and 1412°C) in flowing ga...

more >>


Wetting behavior of Si-13.5B alloy on polycrystalline h-BN-based substrates


In this work, for the first time the results of an experimental evaluation of the high temperature behavior of molten Si-B alloy in contact with refractory materials at temperatures up to 1750°C, under static argon atmosphere (p = 850-900 mbar...

more >>


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...

more >>


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 ...

more >>


High temperature wettability and reactivity between molten Mg in contact with Ni substrate


The paper focuses on the experimental investigation of high temperature wetting behaviour of liquid pure Mg during a contact heating on Ni substrate by the sessile drop method. High temperature wettability test was performed by the ...

more >>