| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1626479 | Journal of Alloys and Compounds | 2007 | 4 Pages |
Abstract
The as-sintered Mn1.1Ni1.4Co0.5−xCrxO4 (0 ≤ x ≤ 0.35) samples were crystallized in a cubic spinel Mn- and Ni-rich oxides. The substituted Cr led to a significant decrease in the resistivity change of the Mn1.1Ni1.4Co0.5−xCrxO4 negative temperature coefficient (NTC) thermistors after the thermal constraint. This indicates that the Cr-substituted Mn1.1Ni1.4Co0.5−xCrxO4 NTC thermistors have good electrical stability in comparison to the Cr-free Mn1.1Ni1.4Co0.5O4 thermistors. We strongly propose that the Cr substitution is highly desirable for the fabrication of stable high-performance NTC thermistors.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K. Park, J.K. Lee, J.-G. Kim, S. Nahm,