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Al2O3或TiO2掺杂的ScSZ固体电解质纳米晶薄膜的制备及表征OA北大核心CSCD

Preparation and Characterization of Nanocrystalline Thin Films of Al2O3 or TiO2 Doped Scandia Stabilized Zirconia Solid Electrolytes

中文摘要英文摘要

利用溶胶-凝胶旋涂法,在单晶硅基片(100)上分别制得了厚度约为0.31 μm的(Al2O3)0.10(Sc2O3)0.08(ZrO2)0.82和0.36 μm的(Sc2O3)0.125(TiO2)0.175(ZrO2)0.70固体电解质纳米晶薄膜。烧结实验结果表明,两种薄膜均在650℃以上开始晶化,温度越高,晶化越完全,在800℃可完全晶化;所得纳米晶颗粒呈纯的萤石结构立方相;铝和钛掺杂的纳米晶颗粒的平均大小分别为47和51 nm。铝掺杂的薄膜非常均匀致密,然而,钛掺杂的薄膜存在少量微气孔。

Dense,crack-free and uniform nanocrystalline (Al2O3)0.10(Sc2O3)0.08(ZrO2)0.82and (Sc2O3)0.125(TiO2)0.175(ZrO2)0.70 thin films with thickness of 0.31 μm and 0.36 μm respectively on Si(100) substrate,have been successfully prepared by a Sol\|Gel spin coating method.Cubic nanocrystals can be obtained at relatively low sintering temperature with an average grain size of about 47 nm and 51 nm respectively.The aluminia-doped ScSZ thins film are the same dense as the ScSZ thin films.However,there are a small amount of pinholes found in the microstructure of the titania-doped ScSZ films.

张亚文;杨宇;金舒;田曙坚;李国宝;贾江涛;廖春生;严纯华

北京大学

数理科学

铝或钛掺杂的氧化钪稳定的氧化锆;纳米晶薄膜;Sol-Gel制备;表征

《北京大学学报(自然科学版)》 2001 (002)

200-204 / 5

国家自然科学基金(29525101,29701001,29832010)、国家重点基础研究发展规划(G1998061300)、国家教育部博士点基金和北大方正基金资助项目

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