基于(Cu1-x Agx) 7si s5i纳米晶粉体的陶瓷导电性

2020 IEEE 10th International Conference Nanomaterials: Applications & Properties (NAP) Pub Date : 2020-11-09 DOI:10.1109/NAP51477.2020.9309527

I. Studenyak, A. Pogodin, I. Shender, S. Bereznyuk, Michael Filep, O. Kokhan

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引用次数: 0

摘要

采用$(c_{u1-x}Ag_{x})_{7}SiS_{5}I$纳米晶粉末，在$\sim 400$ MPa压力下压制，在973 K下退火36 h，制备了陶瓷样品。采用阻抗谱法研究了$(c_{u1-x}Ag_{x})_{7}SiS_{5}I$固溶体陶瓷在10 Hz ~ 2\ × 10^{6}$ Hz、292 ~ 383 K范围内的电导率。基于$(c_{u1-x}Ag_{x})_{7}SiS_{5}I$的陶瓷样品中，随着银原子含量的增加，电导率的离子组分呈非线性增加，电子组分呈非线性减少，其比值呈非线性增加，且$Ag_{7}SiS_{5}I$超过60000。

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Electrical Conductivity of Ceramics Based on (Cu1-x Agx)7 Si S5 I Nanocrystalline Powders

Ceramic samples based on $(c_{u1-x}Ag_{x})_{7}SiS_{5}I$ nanocrystalline powders were manufactured by pressing them at $\sim 400$ MPa pressure and subsequent annealing at 973 K during 36 hours. Investigations of electrical conductivity of ceramics based on $(c_{u1-x}Ag_{x})_{7}SiS_{5}I$ solid solutions were carried out by the method of impedance spectroscopy in the frequency range from 10 Hz to $2\times 10^{6}$ Hz and in the temperature range 292-383 K. It is established that with increasing the content of silver atoms in ceramic samples based on $(c_{u1-x}Ag_{x})_{7}SiS_{5}I$, the ionic component of electrical conductivity increases nonlinearly, while electronic component decreases nonlinearly, and their ratio increases nonlinearly and for $Ag_{7}SiS_{5}I$ exceeds 60000.

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2020 IEEE 10th International Conference Nanomaterials: Applications & Properties (NAP)

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