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A method for sintering metal matrix composite materials.
... Then, an electromagnetic pulse is introduced along with mechanical vibration, which makes the material more reliable than other processes. ESF is an advanced sintering method often Silicon preferable for metal matrix composites due to its low sintering time [154][155][156][157][158]. ...
Recent innovations in materials technology upsurge the use of Al2O3 and SiC based composites in aerospace, automotive, defence, transportation, and sporting industries. The reinforcements like Al, Ni, Cr, Gr, TiB2, ZrB2, MgO, HfB2, CNTs, B4C, Y2O3, GFRP and metal alloys are improving the elevated temperature thermal stability, corrosion resistance, wear resistance, fracture toughness, tensile strength, solar absorbance, fracture strength, flexural strength and crack healing ability respectively. The manufacturing methods like hot isostatic pressing, hot pressing, spark plasma sintering, electro stir forging process the Al2O3-SiC based material with a temperature range of 1400 °C–2000 °C and a pressure range of 2–100 Mpa to make the material suitable for ultra-high temperature applications. Reinforcements, the shape of the reinforcements, processing methods, processing routes, heat treatment methods, and surface finishing techniques are the prime factors that influence the strength, durability, reliability, and structural integrity of any material at ambient as well as elevated temperature. Especially, reinforcements and the manufacturing methods are playing a vital role in property enhancement of Al2O3 and SiC based composites. In this paper, a close review of various reinforcements, manufacturing techniques, behavioural enhancements, respective mechanisms, applications, and futuristic scope of Aluminium oxide-Silicon carbide based composites are presented.
... Preliminary experiments on cemented carbides of different composition and their wear behavior when used as machining tools have been the object of a MANUNET EU funded research project named EDS-Cut. Carbides of tungsten, mixtures of tungsten and titanium carbides and straight titanium carbide grades with cobalt or iron-nickel [18] alloys were used for turning, grooving and milling. Given the speed of the ESF consolidation, carbides do not have enough time to recrystallize in the canonical faceted shapes that characterize most hard metals and appear roundish and small, Fig. 4, since grain growth cannot occur. ...
A novel sintering technology based on high density electric currents and sintering cycles shorter than a second is presented. Data will be shown that compare it to Hot Pressing and Spark Plasma Sintering and to conventional Press and Sinter. Considerations will be made on the materials, the physical and mechanical characteristics of the objects produced, on the range of present and future products, on the tooling and on the productivity.
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