Browsing by Keyword "Electric Resistance Sintering"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Development of the ERS process for the fabrication of titanium components(European Powder Metallurgy Association (EPMA), 2020) Lagos, M. A.; Agote, I.; Vicente, A.; Amigó, V.; López, D.; Calero, J. A.; EXTREMATElectric Resistance Sintering (ERS) is a low-cost alternative to Spark Plasma Sintering (SPS). In the developed process the duration of the cycles is very short (seconds) and without protective atmosphere. These features allow an easy industrialization of the process. This paper shows the processing of different titanium alloys by ERS and the effect of the type of powder and composition in the densification of the alloys. The characterization of the products includes the microstructural analysis, EBSD, crystallographic phases by XRD, elastic modulus and bending strength. In addition, oxygen content of the obtained materials was analyzed in detail considering the parameters of the process. It was possible to obtain full densification of the compacts and mechanical properties show interesting results.Item Metal-diamond materials obtained by electric resistance sintering: microstructure, processing and mechanical properties(European Powder Metallurgy Association (EPMA), 2021) Lagos, M. A.; Viñuela, J.; Leizaola, I.; Agote, I.; Beranoagirre, A.; EXTREMATMetal-diamond tools are well established in the mining sector for the cutting of granite, marble and others. To date, the manufacturing process of diamond tools consists of at least two main steps (cold pressing and sintering by hot pressing or furnace sintering). This process takes several hours. This work presents the fabrication of metal-diamond tools by a very fast process, Electric Resistance Sintering. This method permits the pressing and densification of the pieces in few seconds and without protective atmosphere. This work presents the effect of the processing parameters on the microstructure and mechanical properties of the materials. The characterization of the products includes the microstructural analysis and hardness. It was possible to obtain good densification of the compacts and mechanical properties showed interesting results. Two different compositions were used. One of them was based in cobalt-diamond, a very well-known material for metal-diamond tools. In addition, another composition based in Fe-Cu-Ni was also tested.