Effects of Cd and Cd-Cu Doping on the Microstructure and Electrical Properties of NiMnCoO NTC Ceramics

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The precursors of CdxNi1-xCo0.2Mn1.8O4 (x=0,0.1,0.2,0.3) and Cd0.2Cu0.1Ni0.7Co0.2Mn1.8O4 negative temperature coefficient (NTC) ceramics were prepared at room temperature by the solid reaction. These precursors were calcined and then sintered in air at 1100°C. Influence of the Cd and Cd-Cu doping on the microstructure and electrical properties of the NTC ceramics were investigated by X-ray diffraction and SEM technique. The results showed that Cd doping was conducive to reduce the grain size, increase density, and obtain high thermal stability.

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Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

1632-1635

DOI:

10.4028/www.scientific.net/AMR.236-238.1632

Citation:

G. Na and Y. D. Li, "Effects of Cd and Cd-Cu Doping on the Microstructure and Electrical Properties of NiMnCoO NTC Ceramics", Advanced Materials Research, Vols. 236-238, pp. 1632-1635, 2011

Online since:

May 2011

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$35.00

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