Electron microscopy studies of nickel dimethylglyoximate |
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| Affiliation: | 1. Faculty of Materials Engineering and New Technologies, Shahid Rajaee Teacher Training University, Tehran 16785-136, Iran;2. Ceramic Department, Materials and Energy Research Center (MERC), Karaj, Iran;3. Department of Mechanical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran;1. Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156–83111, Iran;2. Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM–CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, Spain |
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| Abstract: | Nickel dimethylglyoximate crystals precipitated from homogeneous solution are well formed and convenient for microscopic study. The crystals are precipitated in solution as long needles with a rectangular cross-section. The direction of the long axis, i.e., the direction of the long dimension of the needle, is the c-axis ; the shortest axis is either the a- or b-axis. When the single crystal was slowly heated in the electron microscope, it began to sublime at 120° with changes occurring in its surface structure. Above 400° the Debye-Scherrer diffraction rings appeared as the crystal changed to nickel oxide. |
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