Facile, scalable synthesis of nanocrystalline calcium zirconate by the solution combustion method

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• 作者：K. Boobalan ; A. Varun ; R. Vijayaraghavan ; K. Chidambaram ; U. Kamachi Mudali
• 关键词：Solution combustion method ; Calcium zirconate ; XRD ; TEM
• 刊名：Ceramics International
• 出版年：May, 2014
• 年：2014
• 卷：40
• 期：4
• 页码：5781-5786
• 全文大小：1256 K

文摘

Single phasic nanocrystalline CaZrO₃ powder has been synthesized by glycine nitrate solution combustion method around 300 掳C using nitrate as oxidant and glycine as fuel. The as prepared product obtained as a result of combustion itself is crystalline and nearly single phasic CaZrO₃ confirmed by X-ray diffraction (XRD). The product calcined at 600 掳C reveals carbonate free single phasic orthorhombic structured CaZrO₃. To study the impact of oxidant to fuel ratio (O/F) and ignition temperature, a systematic variation of O/F and ignition temperature of combustion reaction has been investigated by analyzing the products through XRD in each case. These products have been characterized by XRD, Fourier Transform Raman spectroscopy, Thermal Analysis (TGA/DTA), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). Raman Spectrum reveals single phasic nanocrystalline perovskite CaZrO₃. Spherical shaped particles were observed through SEM. TEM results also confirm the particles to be in nano regime (30-90 nm).