[PDF] Top 20 Case Study of Spark Plasma Sintering Process

... Spark plasma sintering is one of latest technique used in rapid ...a sintering technique which uses electric current or spark to give the temperature in a limited and continuous manner ... See full document

... Detailed explanation of the experimental sequence for powder synthesis and its SPS-treatment has been reported elsewhere [17-18]. Elemental Ni and Mo powders 99.99% pure of  100m in size were ball milled in a ... See full document

... (DSC) at a heating rate of 0.67 K s 1 . The density of the sintered metallic glassy matrix composite specimens was determined by measuring their mass and dimension of the samples (mass per volume). Mechanical properties ... See full document

... the arc-melted and annealed sample was crushed to an average particle size of below 20 mm. The powder was placed in a carbon die with a diameter of 10 mm. The temperature of the specimen was increased from ambient ... See full document

... conventional sintering proc- ess. In the present study, dense CRO body was prepared by spark plasma sintering (SPS), and the effect of Ru/Ca ratio on the crystal structure, electrical ... See full document

... brittleness. Polymeric materials, on the other hand, cannot withstand to cyclic loading during long time (low fatigue resistance). Alternatively, metallic materials portray high toughness, high fatigue resistance, ... See full document

... SPS process is an electrical sintering technique which applies an ON-OFF DC pulse ...SPS process, and a very high heating efficiency is ...by spark generation and sputtering effect; (b) ... See full document

... reduces sintering times from hours to ...lower sintering temperatures, 66 improved mechanical properties, 29,69,70 and smaller grain ...without sintering aids, aluminum 16 and tungsten 55 powders ... See full document

... testing revealed severe strength degradation at high temperatures. Shahrjerdi et al. [13] have demonstrated the functionally graded metal-ceramic composite fabricated via pressureless sintering. The pure metallic ... See full document

... In the literature, the investigation of iron-matrix composites with a tungsten or carbon nanotubes as the second dispersed phase has been reported on [3]. In the present study, zinc oxide was chosen as an additive ... See full document

... Figure 4 shows TEM images of the bulk sample corre- sponding to Fig. 3(b) (PbTe sample prepared via cryomilling and SPS). The bright-field TEM image in Fig. 4(a) indicates the presence of nano and submicro grains, which ... See full document

... However, the electrical and thermoelectric properties were studied mainly at low temperatures by using single crystals. No study on thermoelectric properties of polycrystalline Sr- Ru-O compounds was reported. ... See full document

... the sintering, the CNTs don’t suffer too much structural changes under high temperature and ...were spark plasma sintered at different temperature and applied external ... See full document

... of process parameters such as temperature-history, -amplitude and applied pressure in the following continuous current ...as case study of property-controls on Ti ...the spark sintering ... See full document

... present study might result from the reducing atmosphere in the vacuum and by the graphite ...after sintering in argon gas; however, no Ir phase was identified in ... See full document

... the case of the mixture powder, it is possible to go out as phosphorous oxide gas, the boiling point of which was lower than sintering tem- perature in this ...Further study is required to reveal the ... See full document

... Densification behaviour of soft/hard powder mixture was deeply investigated by Bouvard (2000). This analysis is based on the hypothesis that ceramic HPs are not deformable under the applied pressure while metal soft ... See full document

... present study is, in essence, a discussion on designing a nanostrucutred alloy with tailored properties, entirely in the solid state from metal powder ...consolidation process, such as in hot pressing ... See full document

... SPS process since the Joule heat is concentrated at narrow necks and contacts between powder ...the sintering temperature of 1273 ...the case of the massive transformation, one -grain transforms into ... See full document

... the case of oxygen atoms which have strong binding to both screw and edge dislocations due to their asymmetric elastic distortions, strong Cottrell locking (atmospheres) can take place (Prasad ... See full document