January 2013

Effect of Co doping on structural, morphological, electrical and optical properties of nanocrystalline zinc oxide films

  We report the effect of cobalt doping on the structural, morphological, electrical and optical properties of nanocrystalline ZnO films febricated by chemical spray pyrolysis technique (CSPT). The structural studies reveals that films have strongly c-axis oriented wurtzite structure. However with the increase (at 5%) in Co doping percentage, an inclination from (0 0 2) to (1 0 1) orientation has been observed....

Author(s):   Girjesh Singh, S. B. Shrivastava and V. Ganesan      

January 2013

New development of spinel bonded chrome-free basic brick

  Due to the water solubility of Magnesia-Chrome bricks, the hexavalent chromium ion (Cr6+) present in these bricks has been reported for use from rotary cement kilns. Magnesia-Chrome bricks are being replaced with chrome-free brick mainly of magnesia-spinel type. So, the aim of the present study is to develop new Cr-free brick with the addition of TiO2. All of properties such as bulk density, apparent...

Author(s):   S. Ghanbarnezhad, A. Nemati, M. Bavand-Vandchali and R. Naghizadeh