Advances in Materials

Volume 4, Issue 4, August 2015

  • Preparation and Properties of Organokaolin Natural Rubber Latex Base Vulcanisate

    Ogbemudia Joseph Ogbebor, Felix Ebhodaghe Okieimen, David Ehioghilen Ogbeifun, Uzoma Ndubuisi Okwu

    Issue: Volume 4, Issue 4, August 2015
    Pages: 75-79
    Received: 14 May 2015
    Accepted: 21 June 2015
    Published: 18 July 2015
    Abstract: Natural rubber (NR) latex-organokaolin compounds have been investigated. The intercalated kaolin (100% CEC-CTAB of clay) was used in aqueous rubber latex dispersion, from which a coagulum was obtained. The coagulum was used in natural rubber compounds and evaluated for its cure: scorch; ts1, optimum cure; t90 min, minimum (ML) and maximum (MH) torq... Show More
  • The Effect of Microsilica and Aluminum Metal Powder on the Densification Parameters, Mechanical Properties and Microstructure of Alumina–Mullite Ceramic Composites

    M. M. S. Wahsh, H. E. H. Sadek, S. Abd El-Aleem, H. H. M. Darweesh

    Issue: Volume 4, Issue 4, August 2015
    Pages: 80-84
    Received: 26 June 2015
    Accepted: 9 July 2015
    Published: 28 July 2015
    Abstract: Microsilica, or silica fume, is an amorphous type of silica mostly collected as byproduct of the silicon and ferro-silicon alloy production. In this work, low shrinkage alumina-mullite ceramic composites were prepared from mixtures of calcined alumina, silica fume and aluminum metal powder and sintered at 1550oC for 2 hrs. The influence of silica f... Show More