International Journal of Materials Science and Applications

Volume 9, Issue 1, January 2020

  • Back Pressure Equal Channel Angular Pressing of Consolidate Pure Al Particles

    Li Yinglong, He Lizi, Zhang Ling

    Issue: Volume 9, Issue 1, January 2020
    Pages: 1-6
    Received: 11 December 2019
    Published: 3 February 2020
    Abstract: In this study, pure aluminum particles were successfully consolidated to fully dense bulk material by back pressure equal channel angular pressing (BE-ECAP) at room temperature, the evolutions of microstructure and densification mechanism were systematically investigated using an FEI-TECNAI G20 transmission electron microscope (TEM) operating at 20... Show More
  • Effect of Acid Etching Time and Concentration on Oxygen Content of Powder on the Microstructure and Elastic Properties of Silicon Carbide Densified by SPS

    Zeynep Ayguzer Yasar, Richard Haber

    Issue: Volume 9, Issue 1, January 2020
    Pages: 7-13
    Received: 27 January 2020
    Accepted: 12 February 2020
    Published: 28 February 2020
    Abstract: In this current paper, oxygen content of a fine particle size SiC (H. C. Starck UF 25 Silicon Carbide) and coarser particle size SiC (Saint Gobain Silicon Carbide) were modified by using different concentrations of HF for etching. Fully dense silicon carbide ceramics (>99% th. density) were produced by the spark plasma sintering technique at 1950 °... Show More
  • Investigation of the Airborne Molecular Contamination Behavior in 300 mm Semiconductor Front - End Manufacturing

    Peter Franze, Germar Schneider, Clara Zaengle, Markus Pfeffer, Stefan Kaskel

    Issue: Volume 9, Issue 1, January 2020
    Pages: 14-24
    Received: 6 January 2020
    Accepted: 15 January 2020
    Published: 6 March 2020
    Abstract: Front-end manufacturing of power semiconductor devices requires numerous different processes and materials. To control the complexity of fully automated 300 mm manufacturing lines, which typically utilize closed wafer containers, so called FOUPs (Front Opening Unified Pod), a systematic FOUP management concept is mandatory. This concept has to fulf... Show More