We have investigated a series of high performance metal-matrix composites (MMCs), in order to improve mechanical and thermal properties such composites. To fabricate composites, we used spark plasma sintering (SPS) process. Using this processing, would minimize or avoid some risks damaging filler surfaces during processing. In article, also introduced are various kinds MMCs, metal/intermetallic...

Cermets are ceramic metal composites. The metallic phase in the cermet typically undergoes oxidation during sintering air. Electric field-assisted processes such as technology/spark plasma (FAST/SPS) and flash involves very high heating rates, short processing time low temperature. main aim of this work was to see if techniques can prevent cermet. Sintering behavior 8YSZ-5 wt.% Ni studied by th...

The spark plasma sintering (SPS), subsequent cold rolling, and annealing were used to produce Ti-Cu alloys improve mechanical properties antibacterial rate against Staphylococcus aureus significantly. tensile strength, elongation reached 683.4 MPa, 21.6% 95%, respectively. insights for the improvement have been attributed high-density in-situ Ti2Cu precipitates in refined grain structures after...

The electrical and thermal contact resistances are key parameters for obtaining an accurate electro-thermal model of the spark plasma sintering (SPS) process. However, due to lack a general expression, these usually determined empirically. Thus, they only valid specific material SPS configuration. A simple method based on limited amount experiments as well new formulation developed. First, evol...

The mechanical reliability of products must be assured for scaling up and production complex‐shaped components by spark plasma sintering (SPS) spray‐dried granules. evolution morphologies pores defects, which control the strength, is investigated using synchrotron X‐ray multiscale tomography during SPS alumina granules at 1300 °C. While large defects arising from hierarchical granule packing st...

In this work, structural and dielectric properties of BaTi(1-x)ZrxO3 (BTZ) ceramics prepared by Spark Plasma Sintering (SPS) from powders obtained via Self-propagating High-temperature Synthesis (SHS) are shown to be strongly affected the sintering temperature. addition, a post-annealing treatment in air as-prepared leads transition hexagonal tetragonal cubic phases. The SPS corresponding compo...

Thermal effects are important considerations at the initial stage in spark plasma sintering of non-conductive Al2O3 powders. The generalized thermo-elastic theory is introduced to describe the influence of the heat transport and thermal focusing caused by thermal wave propagation within a constrained space and transient time. Simulations show that low sintering temperature can realize high loca...

A rapid hot press system in which the heat is supplied by RF induction to rapidly consolidate thermoelectric materials is described. Use of RF induction heating enables rapid heating and consolidation of powdered materials over a wide temperature range. Such rapid consolidation in nanomaterials is typically performed by spark plasma sintering (SPS) which can be much more expensive. Details of t...

In this paper, Cu-based composites were prepared by the powder metallurgy method with spark plasma sintering (SPS) technique using WC (tungsten carbide) particles as reinforcing phase and Cu matrix. The effect of temperature on electrical mechanical properties was investigated, variation in content investigated at optimum temperature. microstructure 5 wt. % WC/Cu different temperatures 850 °C d...

Lanthanum phosphate, due to its interesting thermal and mechanical properties is a widely studied material for refractory applications. Sintering processes have already been proposed densify this drive microstructure. Inspired by recent progress on low temperature sintering, we investigate Spark Plasma (LowT-SPS) using hydrated precursor. First, lanthanum phosphate behaviour was TGA/DTA XRD ana...