Development and evaluation of a low cost sample holder for electical characterization of ceramics

Quimica nova

Soares Júnior, Luiz Carlos Simões¹  Pepe, Iuri Muniz¹  Vasconcelos, Carmel Suzarte Ayres¹  Lima, Luiz Rogério Pinho de Andrade¹  Nóbrega, Shayenne Diniz da¹ 

[1] Universidade Federal da Bahia, Salvador, Brasil

关键词: sample holder;    solid oxide fuel cell;    impedance spectroscopy.;   

DOI  :  10.1590/S0100-40422010000500033

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Conventional sampleholder cells used to the electric characterization of ceramics at high temperatureconsists of an alumina tube and platinum wires and plates using a complex design.The high cost materials used in the conventional sampler holder cell were replacedby stainless steel and conventional ceramics. The sample holder was validatedby characterizing yttria-stabilized-zirconia in a temperature range of 25 to700 ºC. The results do not present variations, discontinuity or unusual noisein the electric signals. Several samples were characterized without maintenance,which demonstrates that the sample holder is electric and mechanic adequateto be used to electrical characterization of ceramics up to 700 ºC.

【 授权许可】

CC BY