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对采用化学溶液沉积技术动态热处理制备La2Zr2O7(LZO)缓冲层进行了研究。结果显示,制备长样品时,侧向进气更有利于驱散热解气体,降低样品织构的不均匀性。当侧向进气方向与样品表面法线方向夹角较小时,更有利于提高LZO缓冲层的织构特性。LZO缓冲层的织构和表面形貌受样品移动速度影响的主要原因是样品移动速度的变化直接改变了样品的热处理时间。优化动态热处理过程后制备出的LZO缓冲层表面致密,LZO缓冲层具有锐利的立方织构,织构锐利度与金属基带织构相当。
La2Zr2O7 (LZO) buffer layer was prepared by dynamic heat treatment using chemical solution deposition technique. The results show that when the long sample is prepared, the lateral air intake is more conducive to disperse the pyrolysis gas and reduce the texture inhomogeneity. When the angle between the direction of the side air intake and the normal direction of the sample surface is small, it is more beneficial to improve the texture characteristics of the LZO buffer layer. The main reason that the texture and surface morphology of the LZO buffer layer are affected by the moving speed of the sample is that the change of the moving speed of the sample directly changes the heat treatment time of the sample. The optimized LZO buffer layer prepared by dynamic heat treatment process has a dense surface. The LZO buffer layer has a sharp cubic texture, and the texture sharpness is equivalent to that of the metal base tape.