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综合利用 TEM、XRD及偏光技术研究了 δ- Al2 O3短纤维的结构。得出纤维具有分层结构。纤维外表面是由具有θ- Al2 O3的织构所组成 ,织构轴为 [0 11],纤维心部是细小的δ- Al2 O3多晶结构
The structure of δ-Al 2 O 3 staple fibers was investigated by TEM, XRD and Polarization techniques. It is concluded that the fibers have a layered structure. The outer surface of the fiber is composed of a texture with θ-Al 2 O 3, the texture axis is [0 11], and the fiber core is a fine δ-Al 2 O 3 polycrystalline structure