ResearchBib Share Your Research, Maximize Your Social Impacts
Sign for Notice Everyday Sign up >> Login

Characteristics of ZnO-based semiconductor ceramics doped with GeO2 and PbO

Journal: International Journal of Science and Research (IJSR) (Vol.4, No. 2)

Publication Date:

Authors : ; ;

Page : 848-853

Keywords : ZnO based ceramics; semiconductors; varistors;

Source : Downloadexternal Find it from : Google Scholarexternal


The effect of GeO2 and PbO on physical, microstructure, and the electrical properties of ZnO based ceramics is investigated. A decrease in water absorption was recorded with rise in maturing temperature and increase in time of soaking. A minimum water absorption was displayed in specimens fired at 1000 oC for 2 hours. The average grain size decreases initially as GeO2 content increases up to 2 mol %. The grain size of ZnO decreases greatly, as the Ge-rich phase inhibits grain growth ZnO decreases. The decrease of capacitance in (pf), dielectric constant (-) and consequently increase (AC) conductivity with increasing frequency (1-20) KHz was investigated.

Last modified: 2021-06-30 21:22:46