Electric current-assisted sintering (ECAS) technologies are highly promising for processing of NdFeB magnets. Due to the combination direct Joule heating and application external load, even powders, whose particle size distribution morphology not optimum conventional powder like melt-spun powders or magnet scrap, can be easily sintered high densities. A systematic study is done demonstrate pote...

Ultrafine tungsten carbide-nickel (WC-Ni) cemented carbides with varied fractions of silicon carbide (SiC) nanowhisker (0-3.75 wt.%) were fabricated by spark plasma sintering at 1350°C under a uniaxial pressure of 50 MPa with the assistance of vanadium carbide (VC) and tantalum carbide (TaC) as WC grain growth inhibitors. The effects of SiC nanowhisker on the microstructure and mechanical prope...

MgB2 pellets that were sintered by Spark Plasma Sintering (SPS) from commercial powder soldered a SPS process and compared to unsoldered ones. The samples characterized scanning transmission electron microscopy which have shown no visible defects at the junction. SQUID magnetometry four probes resistance measurements confirmed present same magnetic properties as presented soldering technique co...

In this study, we investigated the formation of a protective coating on face-centered cubic high-entropy alloy (HEA). The was formed by diffusion method. conventional method, degradation mechanical properties base material owing to prolonged high-temperature treatment is major issue. Therefore, ceramic layer using spark plasma sintering (SPS), which suppresses grain growth with rapid heating an...

Novel cermet Bi2Te2.1Se0.9+0.33 ​wt% Co composite has been prepared via spark plasma sintering (SPS) the starting Bi2Te2.1Se0.9 and powders at different SPS-temperatures (TS ​= ​598, 623, 648 673 ​K). During sintering, initial inclusions transform into final filler [email protected]2 (“core”-“shell”) inclusions, randomly distributed inside textured grained matrix. Forming these is originated fr...

Pure magnesium (Mg) powders together with pure titanium (Ti) were mechanically alloyed (MAed) using a vibration ball mill. Stearic acid was used as process control agent (PCA) for the mechanical alloying (MA) process. The MAed consolidated into bulk materials by spark plasma sintering (SPS). Changes in hardness and solid-state reactions of SPS have been examined measurements an X-ray diffractio...

Considering the importance and application of ultrahigh temperature ceramics in oxidizing environments, this research, effect ZrC content spark plasma sintering parameters (temperature, time pressure) on oxidation response ZrB2–SiC composites has been investigated. After fabricating ternary composite samples different SPS conditions with amounts ZrC, post-sintering process was carried out a box...

Spark plasma sintering (SPS) has been employed to consolidate a micron-sized zirconium carbide (ZrC) powder. ZrC pellets with a variety of relative densities are obtained under different processing parameters. The densification kinetics of ZrC powders subjected to conventional hot pressing and SPS are comparatively studied by applying similar heating and loading profiles. Due to the lack of ele...

Graphite-molybdenum-titanium composites might attract significant interest as heat sinks for different sector applications due to their excellent thermal, electrical and mechanical properties. This type of was already studied but following the powder metallurgy spark plasma sintering (SPS) route. The aim present investigation is study a new route fabrication these improve properties: colloidal ...