Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1622593 | Journal of Alloys and Compounds | 2009 | 5 Pages |
Abstract
A single-phase of calcium copper titanate (CaCu3Ti4O12) was produced at lower temperature and shorter calcination time via a combination of solid state reaction and mechanical alloying techniques. The raw materials mixture was subjected to fast ball-milling for 5 h. The mixture was calcined at 750 °C for 9 h to form a single-phase CaCu3Ti4O12. Effect of zinc dopant to the dielectric properties of CaCu3Ti4O12 had been studied. At lower frequencies, it was found that the dielectric constants had a minimum value at 1.5 mol% Zn. The minimum dielectric loss was observed at 5 mol% Zn. At 1 kHz, the dielectric loss decreases from 30% (undoped) to a minimum value of 18% at 5 mol% Zn dopant. This result indicates that certain Zn dopant can be used to improve the dielectric loss properties of CaCu3Ti4O12.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Sabar D. Hutagalung, Li Ying Ooi, Zainal A. Ahmad,