Microwave dielectric properties of Ba3La2Ti2Nb2?xTaxO15 ceramics |
| |
Affiliation: | 1. Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Iran;2. Department of Chemistry, Payame Noor University, Tehran, 19395-4697, Iran;3. Young Researchers and Elite Club, Sepidan Branch, Islamic Azad University, Sepidan, Iran |
| |
Abstract: | High dielectric constant and low loss ceramics in the system Ba3La2Ti2Nb2?xTaxO15 (x = 0–2) have been prepared by conventional solid-state ceramic route. Ba3La2Ti2Nb2?xTaxO15 solid solutions adopted A5B4O15 cation-deficient hexagonal perovskite structure for all compositions. The materials were characterized at microwave frequencies. They show a linear variation of dielectric properties with the value of x. Their dielectric constant varies from 49.8 to 45.1, quality factor Qu × f from 22,000 to 31,040 GHz and temperature variation of resonant frequency from + 6.9 to ? 13.4 ppm/°C as the value of x increases. These low loss ceramics might be used for dielectric resonator (DR) applications. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|