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0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : 0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights
นักวิจัย : Tan, Chee Kiang Ivan , Yao, Kui , Goh, Phoi Chin , Ma, Jan
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Tan, C. K. I., Yao, K., Goh, P. C.,& Ma, J. (2012). 0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights. Ceramics International, 38(3), 2513-2519. , 0272-8842 , http://hdl.handle.net/10220/12812 , http://dx.doi.org/10.1016/j.ceramint.2011.11.021
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Ceramics international
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Lead-free piezoelectric 0.94(K0.5Na0.5)NbO3–0.06LiNbO3 (0.94KNN–0.06LN) ceramics were prepared by solid state reaction process modified by introducing polyvinylpyrrolidone (PVP) of different molecular weights in the starting raw materials. The chemical interaction between the metal cations and the PVP, particularly through the N in PVP, was observed. The effects of PVP for suppressing the loss of alkali ions, promoting the perovskite phase formation, and improving the piezoelectric properties were characterized and discussed. With molecular weight ranging from 55 K to 1300 K, PVP with lower molecular weight exhibited more significant effect. This study showed that introducing PVP in the starting raw materials may be an effective method for obtaining stoichiometric KNN–LN and other ceramics with volatile alkali ions.

บรรณานุกรม :
Tan, Chee Kiang Ivan , Yao, Kui , Goh, Phoi Chin , Ma, Jan . (2554). 0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tan, Chee Kiang Ivan , Yao, Kui , Goh, Phoi Chin , Ma, Jan . 2554. "0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tan, Chee Kiang Ivan , Yao, Kui , Goh, Phoi Chin , Ma, Jan . "0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Tan, Chee Kiang Ivan , Yao, Kui , Goh, Phoi Chin , Ma, Jan . 0.94(K0.5Na0.5)NbO3–0.06LiNbO3 piezoelectric ceramics prepared from the solid state reaction modified with polyvinylpyrrolidone (PVP) of different molecular weights. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.