| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1464940 | Ceramics International | 2007 | 4 Pages |
Abstract
Nanocrystalline Ni1Co0.2Mn1.8O4 powders were synthesized via a gel auto-combustion process of nitrate–citrate gels. The investigation on the gels by XRD shows that a stable sol–gel can be formed by adding ethylene glycol (EG) and adjusting the pH values. The dried gels exhibit auto-catalytic combustion behavior. The reaction mechanism has been given by detailed studies based on DTA-DSC and XRD techniques. After being sintered at about 1150 °C, well-densified NTC ceramics with B values higher than 3600 k were obtained. It is demonstrated that the synthesized powder is high sinter active, and can be used for NTC thermistor application.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Weimin Wang, Xiangchun Liu, Feng Gao, Changsheng Tian,