• H B Patel

      Articles written in Bulletin of Materials Science

    • Growth and characterisation of TaS2 single crystals

      M K Agarwal J V Patel H B Patel

      More Details Abstract Fulltext PDF

      Single crystals of tantalum disulphide have been grown by a sublimation or direct vapour transport method. Crystals as large as 15×10×0·05 mm3 grew in the form of platelets and needles above the charge which was kept well distributed within the ampoule. Characterisation of the as-grown crystals has been carried out at room temperature by x-ray diffraction. Electrical conductivity and magnetic susceptibility measurements have also been made.

    • Studies of defects in WSe2 single crystals

      M K Agarwal H B Patel T C Patel

      More Details Abstract Fulltext PDF

      A realistic estimation of growth and deformation fault probability has been made in the crystals of WSe2 grown by a direct vapour transport method. Electron microscopy of the specimens revealed the presence of two-fold ribbons from which theγ/μ ratio has been determined. Attempts to study polytypism have also been described.

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