Preparation and Characterization of Large-Sized ADM Monocrystals

Abstract:

Non-agglomerated ammonium dimolybdate (ADM) monocrystals with large diameter and high dispersion has been prepared through reaction-evaporation-crystallization (REC) process using ammonium tetramolybdate and ammonia solution as reactants. The as-prepared ADM monocrystals were systematically characterized by x-ray powder diffraction, transmission-reflection optical microscope, Fourier transform infrared spectroscopy and TG-DSC thermal analysis. It is shown that the as-prepared ADM samples are disperse monocrystals with well grain distribution and geometric shape, which can well meet the quality requirements for the subsequent production of molybdenum powders.

• Periodical: Applied Mechanics and Materials (Volumes 152-154)
• Pages: 126-129
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.152-154.126
• Online since: January 2012
• Authors: Jun Zhang, Yan Hui Guo
• Keywords: Ammonium Dimolybdate, Characterization, Monocrystal, Preparation

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