Year: 2017
Type: article
Abstract: 本文应用溶胶-凝胶法制备热电材料Ca3Co4O9+δ(x = 0, 0.05, 0.10, 0.15)粉体。研究Ce掺杂对粉体微观结构的影响。XRD结果表明，随着Ce掺杂含量增加，衍射峰向大角度偏移，说明了Ce元素通过掺杂到Ca3Co4O9+δ晶格当中。通过SEM扫描发现，材料的晶粒呈层状结构且尺寸大小均匀。通过振动样品强磁计(VSM)对样品磁性进行分析，发现Ce元素的掺杂对样品的磁性有轻微的影响。 This thesis is to produce thermoelectric material powders Ca3Co4O9+δ(x = 0, 0.05, 0.10, 0.15) in application of sol-gel method. It also studies Ce doping’s effects on powder microstructure. XRD results show that as the Ce doping content increases diffraction peak shifts to a large angle, which indicates Ce element is doped into the Ca3Co4O9+δ lattice. Through SEM scanning, we can find that the grains of the material are layer-structured and in a uniform size. Through the analysis for sample magnetism by VSM vibration, we can find that Ce doping has an effect on sample magnetism.
Source: Applied Physics
Author: 天舒 范
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2609820742