Abstract
To gain a deep insight into the contribution of Nd-substitution, we have investigated structural phase transition behavior in Bi4-xNd xTi3O12 (BNT) powders derived from chemical solutions. Differential thermal analysis and thermo-gravimetry (DTA-TG) and X-ray diffraction (XRD) studies indicated that the para- and ferroelectric transition temperature (Curie temperature, Tc) continuously decreased with increasing x. The XRD studies also showed that continuous decrease in lattice anisotropy (a/b, orthorhombicity) with the increase of x. Considering the close relationship with Tc, a/b and spontaneous polarization Ps in displacive ferroelectrics, Nd-substitution may not enhance the intrinsic Ps in Bi4Ti3O12 (BIT). For direct evaluation of Ps upon Nd-substitution, synthesis route to polar-axis-orientated BNT films was investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 53-56 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 269 |
| Publication status | Published - 2004 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Chemical Engineering (miscellaneous)
Cite this
Synthesis and properties of Nd-substituted bismuth titanate polycrystalline thin films with polar-axis orientation. / Kurachi, Masahiro; Matsuda, Hirofumi; Iijima, Takashi; Uchida, Hiroshi; Koda, Seiichiro; Watanabe, Takayuki; Funakubo, Hiroshi.
In: Key Engineering Materials, Vol. 269, 2004, p. 53-56.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and properties of Nd-substituted bismuth titanate polycrystalline thin films with polar-axis orientation
AU - Kurachi, Masahiro
AU - Matsuda, Hirofumi
AU - Iijima, Takashi
AU - Uchida, Hiroshi
AU - Koda, Seiichiro
AU - Watanabe, Takayuki
AU - Funakubo, Hiroshi
PY - 2004
Y1 - 2004
N2 - To gain a deep insight into the contribution of Nd-substitution, we have investigated structural phase transition behavior in Bi4-xNd xTi3O12 (BNT) powders derived from chemical solutions. Differential thermal analysis and thermo-gravimetry (DTA-TG) and X-ray diffraction (XRD) studies indicated that the para- and ferroelectric transition temperature (Curie temperature, Tc) continuously decreased with increasing x. The XRD studies also showed that continuous decrease in lattice anisotropy (a/b, orthorhombicity) with the increase of x. Considering the close relationship with Tc, a/b and spontaneous polarization Ps in displacive ferroelectrics, Nd-substitution may not enhance the intrinsic Ps in Bi4Ti3O12 (BIT). For direct evaluation of Ps upon Nd-substitution, synthesis route to polar-axis-orientated BNT films was investigated.
AB - To gain a deep insight into the contribution of Nd-substitution, we have investigated structural phase transition behavior in Bi4-xNd xTi3O12 (BNT) powders derived from chemical solutions. Differential thermal analysis and thermo-gravimetry (DTA-TG) and X-ray diffraction (XRD) studies indicated that the para- and ferroelectric transition temperature (Curie temperature, Tc) continuously decreased with increasing x. The XRD studies also showed that continuous decrease in lattice anisotropy (a/b, orthorhombicity) with the increase of x. Considering the close relationship with Tc, a/b and spontaneous polarization Ps in displacive ferroelectrics, Nd-substitution may not enhance the intrinsic Ps in Bi4Ti3O12 (BIT). For direct evaluation of Ps upon Nd-substitution, synthesis route to polar-axis-orientated BNT films was investigated.
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M3 - Article
AN - SCOPUS:8644278109
VL - 269
SP - 53
EP - 56
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
ER -