Studies of Dielectric Properties of Rare Earth (Y, Gd, Yb) Doped Barium Titanate Sintered in Pure Nitrogen
Studies of Dielectric Properties of Rare Earth (Y, Gd, Yb) Doped Barium Titanate Sintered in Pure Nitrogen
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DOI：
10.1080/00150193.2010.484757
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发表时间：
2010-01-01
期刊：
影响因子：
0.8
通讯作者：
Yao, Xi
中科院分区：
文献类型：
--
作者：
Li, Yanxia;Hao, Yingbin;Yao, Xi
研究了在纯氮气中烧结的稀土(Y，Gd，Yb)掺杂钛酸钡的介电性能。研究了中间稀土离子(Gd、Y、Yb)掺杂行为的差异及其对钛酸钡介电性能的影响。中间稀土元素(Gd、Y、Yb)被取代在钙钛矿晶格的A位。不同的稀土元素对稀土掺杂BaTiO_3的介电性能有重要影响。掺Gd的钛酸钡具有最大的介电常数(约20000)和最大的介电损耗(约0.60)，最小的漏电流，且不可调谐。掺Y样品的漏电流最大。
This paper investigated dielectric properties of rare earth (Y, Gd, Yb)-doped barium titanate sintered in pure nitrogen. The difference in doping behaviors of intermediate rare-earth ions (Gd, Y, Yb) and their effects on the dielectric properties of barium titanate were investigated. The intermediate rare earth elements (Gd, Y, Yb) were substituted in the A-site of the perovskite lattice. The different rare earth element had a crucial effect on dielectric properties of rare-earth-doped BaTiO3. Gd-doped barium titanate had the largest dielectric constant (about 20000) and the largest dielectric loss (about 0.6), the smallest leakage current and no tunability. Y-doped specimen had the largest leakage current.