Dielectric and piezoelectric properties of PMN-PT ceramics doped with strontium
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Motivated by the need of piezoelectric ceramics with enhanced piezoelectric properties, we investigated the effects of Sr addition on the structural, dielectric and piezoelectric properties of PMN-PT ceramics. The synthesis of (1-x)[(Pb-1/3,Sry)(Mg3/3Nb2/3)O31-x(Pb(1-y)SryTiO(3)) (PsMN PsT) (y: 0 -0.10, x: 0.35- 0.40) ceramics was carried out by the colloidal coating method to distribute Sr uniformly in PMN and PT respectively. When x=0.35, it was found that y=0.02 gave the optimal piezoelectric properties. Furthermore, by keeping y=0.02 and varying x, it was found that x= 0.37 gave even better piezoelectric properties with the optimal piezoelectric strain coefficient d(33) (630 pC/N), piezoelectric coupling factor k(p) (0.52), dielectric constant epsilon(r) (4000), and Curie temperature T-c (210 degrees C), exhibiting great potential for actuator and sensor applications.
Açıklama
Anahtar Kelimeler
Piezoelectric properties, Dielectric properties, PMN-PT, Isovalent doping, Coating method
Kaynak
CERAMICS INTERNATIONAL
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
44
Sayı
3
