Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties
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In this Paper, the split tensile and flexural stren gth together with the setting time of concrete by p artial replacement of cement with nano-phase Fe 2O3 particles has been studied. Fe 2O3 nanoparticles with the average diameter of 15 nm were used with four different contents of 0.5%, 0.1%, 1. 5% and 2.0% by weight. The results showed that the use of nano- Fe 2O3 particles up to maximum replacement level of 2.0% produces concrete with improved split tensile streng th. However, the ultimate strength of concrete was gained at 1.0% of cement replacement. The flexural strength of fresh concrete was increased by increasing the content of Fe 2O3 nanoparticles. The setting time of fresh concrete was decreased by increasing the content of Fe 2O3 nanoparticles. It is concluded that partial replac ement of cement with nanophase Fe 2O3 particles improves the split tensile and flexural strength of concrete but decreases its setting time. (Journal of Americ an Science 2010;6(4):90- 93). (ISSN: 1545-1003).
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Both n- and p-type SnSe polycrystalline bulks were fabricated by MA + SPS process without any chemical doping.
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Wear behavior and microhardness of some W/Cu functionally graded materials obtained by spark plasma sintering Claudiu NICOLICESCU, Victor Horia NICOARĂ, Florin POPA, Traian Florin MARINCA Abstract. This paper is focused on the elaboration of some W/Cu functionally graded materials (FGM) by spark plasma sintering (SPS) process, as well as on their characterization, from the wear […]
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This chapter contains sections titled: Introduction Study of Temperature Fileds in Spark Plasma Sintering Study of the Atomic Diffusion in Spark Plasma Sintering Application of Spark Plasma Sintering in Farbication of New Materials Conclusions
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Spark plasma sintering (SPS) is a new kind of rapid sintering technology, which has been applied in studies on materials more and more. In this paper, the study progresses of preparation by SPS of permanent magnetic materials, including microncrystal, nanocrystal single phase and nanocomposite materials is overviewed, respectively.
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Abstract This study focused on the synthesis of Ti36-Al16-V16-Fe16-Cr16 high-entropy alloys (HEAs) through spark plasma sintering to ascertain their corrosion resistance performance. Varied sintering temperatures, ranging from 700 to 1100 °C were employed to discern their impact on the alloy's characteristics. The fabricated HEAs underwent characterization using scanning electron microscopy and X-ray diffraction. A potentiodynamic polarization measurement was employed to compare the electrochemical properties of HEAs sintered at different temperatures in sulfuric and chloride aggressive media. The study outcomes indicate that the HEA sintered at 1000 °C exhibited superior corrosion resistance compared to other HEAs at other temperatures. This study contributes valuable insights into the nuanced relationship between sintering temperature, microstructure, and corrosion resistance of Ti36-Al16-V16-Fe16-Cr16 HEAs.
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