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Publication
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| Title of Article |
Preparation, characterization, and dielectric properties
of CaCu3Ti4O12-related (Na1/3Ca1/3Y1/3)Cu3Ti4O12 ceramics using
a simple sol–gel method |
| Date of Acceptance |
13 June 2017 |
| Journal |
| Title of Journal |
Journal of Materials Science: Materials in Electronics (JMSE) |
| Standard |
SCOPUS |
| Institute of Journal |
Springer |
| ISBN/ISSN |
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| Volume |
2017 |
| Issue |
28 |
| Month |
ตุลาคม |
| Year of Publication |
2017 |
| Page |
14839-14847 |
| Abstract |
(Na1/3Ca1/3Y1/3)Cu3Ti4O12 nanoparticles with
sizes of about 100–200 nm are successfully prepared using simple sol–gel method. The main phase of (Na1/3Ca1/3Y1/3)Cu3Ti4O12 is obtained in both powders and sintered ceramics. Microstructural analysis confrms the presence
of Na, Ca, Y, Cu, Ti, and O and these elements are well dispersed in the microstructure. The average grain size of (Na1/3Ca1/3Y1/3)Cu3Ti4O12 ceramics signifcantly increases with increasing sintering times. High dielectric permittivity and low loss tangent values of about 2.52× 104 and 0.034 (at 1 kHz), respectively, are achieved. (Na1/3Ca1/3Y1/3)Cu3Ti4O12 ceramics can exhibit non-Ohmic properties with a breakdown electric feld and nonlinear coefcient of ≈5.2×103 V/cm and 7.91, respectively. Investigation of the DC bias dependence of the electric responses confrms that
the giant dielectric properties originate from the internal barrier layer capacitance effect. The presence of Cu+, Cu3+, and Ti3+ ions is confrmed and suggested to have an influence on conduction in semiconducting grains. |
| Keyword |
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| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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