Preparation and Characterization of Alkoxy‐Derived SrZrO3 and SrTiO3
Preparation and Characterization of Alkoxy‐Derived SrZrO3 and SrTiO3
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烷氧基衍生的 SrZrO3 和 SrTiO3 的制备及表征
DOI：
10.1111/j.1151-2916.1970.tb12017.x
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发表时间：
1970
影响因子：
3.9
通讯作者：
K. S. Mazdiyasni
中科院分区：
文献类型：
--
作者：
J. S. Smith;R. T. Dolloff;K. S. Mazdiyasni
合成了高纯锶、锆和钛的醇盐，并将其表征为复合氧化物的前驱体。锶和锆的醇盐或锶和钛的醇盐的同时水解被用来获得接近化学计量的、理想混合的高表面活性的SrZrO 3或SrTiO 3粉末。所制备的氦气干燥的SrTiO 3在煅烧之前是结晶的。紫外辐射技术证明了在煅烧温度范围至350°C内SrZrO 3微晶的成核和生长。红外光谱、热重分析和X射线衍射数据支持了实验结果。对纯度、混合均匀性和微晶尺寸的高度控制证明了醇盐前体方法对于解决电气质量陶瓷合成中遇到的再现性问题的价值。
High-purity strontium, zirconium, and titanium alkoxides were synthesized and characterized as precursors for complex oxides. Simultaneous hydrolytic decomposition either of strontium and zirconium alkoxides or of strontium and titanium alkoxides was used to obtain nearly stoichiometric, ideally mixed SrZrO3 or SrTiO3 powders of high surface activity. As-prepared helium-dried SrTiO3 is crystalline before calcination. An ultraviolet radiation technique demonstrates the nucleation and growth of SrZrO3 crystallites in the calcination temperature range to 350°C. The experimental results are supported by ir, TGA, and X-ray diffraction data. The high degree of control over purity, mixing uniformity, and crystallite size demonstrates the value of the alkoxide precursor approach for the solution of reproducibility problems encountered in the synthesis of electrical-quality ceramics.