The results of SEM, TEM, SAED and XRD show that the direction of gas current and the physical or chemical changes of catalyst grain cause the morphology variety of carbon micro-coils.
结果表明，反应气流的流向以及催化剂在反应过程中发生的物理和化学变化是导致碳微线圈形态变化的两个重要原因。
The ageing precipitation and strengthening behavior of 7B04 aluminum alloy were investigated by DSC, TEM, HREM, SAED and tensile testing techniques.
利用差示量热法（DSC）、透射电镜（TEM）、选区电子衍射（SAED）、常规力学性能测试等手段研究了7B04铝合金时效沉淀析出及强化行为。
Optical microscopy, XRD, SEM, tem and SAED are used to systemically characterize the morphology and structure of silver nanostructures.
采用光学显微镜、XRD、SEM、TEM、SAED等手段，表征纳米材料的尺寸、形貌、组成和晶体结构。
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