ชื่อเรื่อง | : | Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature |
นักวิจัย | : | Sun, Chen , Chen, Xiaomin , Wang, Junling , Yuan, Guoliang , Yin, Jiang , Liu, Zhiguo |
คำค้น | : | - |
หน่วยงาน | : | Nanyang Technological University, Singapore |
ผู้ร่วมงาน | : | - |
ปีพิมพ์ | : | 2555 |
อ้างอิง | : | Sun, C., Chen, X., Wang, J., Yuan, G., Yin, J., & Liu, Z. (2012). Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature. Solid State Communications, 152(14), 1194-1198. , 0038-1098 , http://hdl.handle.net/10220/10326 , http://dx.doi.org/10.1016/j.ssc.2012.04.067 |
ที่มา | : | - |
ความเชี่ยวชาญ | : | - |
ความสัมพันธ์ | : | Solid state communications |
ขอบเขตของเนื้อหา | : | - |
บทคัดย่อ/คำอธิบาย | : | Multiferroic BiFeO3 and Bi0.92Dy0.08FeO3 ceramics were prepared to study their crystal structures and piezoelectric properties. BiFeO3 exhibits rhombohedral phase below 810 °C. Although Bi0.92Dy0.08FeO3 ceramic also shows rhombohedral phase at room temperature, it allows the coexistence of rhombohedral phase and orthorhombic phase at 460–650 °C. Both samples have maximum polarizations of >21 μC/cm2 and piezoelectric d33 values of ∼37 pC/N at room temperature. Their polarized slices show the dielectric anomalies and impedance anomalies because of vibrating resonances below 500 °C, and the thickness vibration electromechanical coupling factor is ∼0.6 and ∼0.4 for BiFeO3 and Bi0.92Dy0.08FeO3, respectively. The vibrating resonances confirm piezoelectric responses. Furthermore, samples' impedance and resistance decrease fast with temperature increasing, which screens piezoelectric response above 550 °C. |
บรรณานุกรม | : |
Sun, Chen , Chen, Xiaomin , Wang, Junling , Yuan, Guoliang , Yin, Jiang , Liu, Zhiguo . (2555). Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Sun, Chen , Chen, Xiaomin , Wang, Junling , Yuan, Guoliang , Yin, Jiang , Liu, Zhiguo . 2555. "Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Sun, Chen , Chen, Xiaomin , Wang, Junling , Yuan, Guoliang , Yin, Jiang , Liu, Zhiguo . "Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print. Sun, Chen , Chen, Xiaomin , Wang, Junling , Yuan, Guoliang , Yin, Jiang , Liu, Zhiguo . Structure and piezoelectric properties of BiFeO3 and Bi0.92Dy0.08FeO3 multiferroics at high temperature. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.
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