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- Title
Investigation of dielectric, mechanical, and electrical properties of flame synthesized Y<sub>2/3</sub>Cu<sub>2.90</sub>Zn<sub>0.10</sub>Ti<sub>4</sub>O<sub>12</sub> material.
- Authors
Yadava, Shiva Sunder; Lee, Youngil; Singh, Laxman; Sheeraz, Muhammad; Chowdhury, Mahmudun Nabi; Rai, U. S.; Park, Young Seok; Singh, Satya Vir
- Abstract
A simple flame synthesis method was used to fabricate the Y2/3Cu2.90Zn0.10Ti4O12 (YCZTO) material. The X-ray diffraction analysis showed the single-phase formation of the YCZTO material directly sintered at 1050 °C for 15 h. Scanning electron microscopy showed well packed grains with high densification of morphology having the average grain size in range of 0.8-4 µm. X-ray photoelectron spectroscopy analysis showed that the Cu and Zn are in + 2 valence state confirming the Zn successfully incorporated at Cu2+ site. YCZTO exhibited the εr value of ∼ 1.4 × 103 and dielectric loss (tan δ) of ∼ 0.09 at 50 °C. The impedance spectroscopy analysis suggested that the obtained YCZTO material is electrically heterogeneous. The activation energies (Ea) for conduction at the grain boundaries at higher temperature range (110-150 °C) were found to be in the range ∼ 1.0 eV. Besides the dielectric property, YCZTO also showed the interesting mechanical and I-V characteristics.
- Subjects
DIELECTRIC properties; X-ray photoelectron spectroscopy; COPPER; ELECTRIC properties; ELECTRIC properties of zinc; CRYSTAL grain boundaries
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 12, p10082
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-9052-x