Advances in Materials

Volume 6, Issue 2, April 2017

  • The Study on the Structure of Pure Iron Under A High Pressure of 100GPa

    Lei Feng, Fei Wang, Wufeng Jiang, Chen Chen, Yuzhu Zhang, Jingbo Ren, Zhenguo Wang

    Issue: Volume 6, Issue 2, April 2017
    Pages: 7-10
    Received: 8 March 2017
    Accepted: 16 March 2017
    Published: 2 April 2017
    Abstract: Using a new crystal structure prediction software CALYPSO (Crystal Structure Analysis by Particle Swarm Optimization), a new phase F222 of pure iron was obtained in a high pressure of 100GPa, which is different to δ-Fe, γ-Fe, α-Fe, the structure is a orthogonal structure, with this structure, the element Fe has the lattice parameters a=1.8459, b=10... Show More
  • Variation of Physico-Chemical and Textural Properties of Laboratory Prepared Red Mud Through Acid and Thermal Activations

    Tsamo Cornelius, Richard Kamga

    Issue: Volume 6, Issue 2, April 2017
    Pages: 11-19
    Received: 28 March 2017
    Accepted: 18 April 2017
    Published: 1 June 2017
    Abstract: Red mud prepared in the laboratory was activated using hydrochloric acid with concentrations from 2-4 mol/L, heat at 900°C and combined acid and heat at 900°C, and the respective yields evaluated. The physico-chemical properties of these samples were determined using pH, EC, XRF, XRD, SEM, TGA-DTA analyses and textural properties (isotherm type, BE... Show More