The effect of Yb3+ ion substitution on dielectric and microstructural properties of Y3Al5O12 ceramics
Journal of Materials Science: Materials in Electronics, cilt.30, sa.1, ss.609-623, 2019 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 30 Sayı: 1
- Basım Tarihi: 2019
- Doi Numarası: 10.1007/s10854-018-0327-z
- Dergi Adı: Journal of Materials Science: Materials in Electronics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.609-623
- İstanbul Gelişim Üniversitesi Adresli: Hayır
Özet
The electrical and dielectric properties of Y3Al5O12 (yttrium aluminum garnet, YAG) ceramics are investigated in detail. YAG:(Yb)x (0.01 ≤ x ≤ 0.09) was synthesized by a solid state reaction and characterized by X-ray powder diffraction, field emission scanning electron microscopy, and high-resolution transmission electron microscopy. The electrical and dielectric properties have been intensively studied under certain bias voltages up to a frequency of 10 MHz. These properties are dependent on the substitution rates, independent of the bias voltages. The experimental result shows that Yb3+ ion substitution into YAG ceramics significantly influences the conductivity, dielectric constant, and lossy mechanisms, which is probably owing to the 3d-Al ions and 4f-Yb ions incorporated at different positions of structural symmetries in Y3−xYbxAl5O12 (0.00 ≤ x ≤ 0.09) ceramics.