Structure-property relations in mesoscopic BaTiO3 and PbTiO3

被引:25
作者
Akdogan, EK [1 ]
Mayo, W
Safari, A
Rawn, CJ
Payzant, EA
机构
[1] Rutgers State Univ, Dept Ceram & Mat Engn, Piscataway, NJ 08854 USA
[2] Oak Ridge Natl Lab, HTML, Oak Ridge, TN 37381 USA
关键词
size effects; PbTiO3; BaTiO3;
D O I
10.1080/00150199908260547
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Structure-property relations in mesoscopic BaTiO3 and PbTiO3 are reviewed from the standpoint of effects of crystallite size on intrinsic behavior using the Landau-Ginzburg-Devonshire formalism. Experimental results based on x-ray diffractometry and quantitative calorimetry indicate that the critical crystallite sizes (CCS) for the stabilization of the cubic paraelectric phase in BaTiO3 and PbTiO3 are in the vicinity of 67 and 15 nm, respectively. The CCS scales inversely with the cubic-tetragonal transition temperature (Ttr). The depression in Ttr in PbTiO3 is -15 (C with decreasing crystallite size (CS). A decrease in Ttr for BaTiO3 was not observed. Both systems preserve their first order phase transformation characteristics with reduced CS. Electrostrictive coefficients were determined as a function of CS and were found to exhibit a pronounced increase with decreasing CS. The increase in the electrostrictive coefficients offsets the decrease in spontaneous polarization and results in an increase in piezoelectric moduli suggesting that strong piezoelectric activity could indeed be observed in the mesoscopic size range.
引用
收藏
页码:11 / 18
页数:8
相关论文
共 16 条
[1]  
AKDOGAN EK, 1998, ADV DIELECTRICS, V88
[2]  
AKDOGAN EK, 1998, UNPUB JPN J APPL PHY
[3]  
AKDOGAN EK, 1998, UNPUB J APPL PHYS
[4]   Polymerized complex route to barium titanate powders using barium-titanium mixed-metal citric acid complex [J].
Arima, M ;
Kakihana, M ;
Nakamura, Y ;
Yashima, M ;
Yoshimura, M .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (11) :2847-2856
[5]  
DELHEZ R, 1995, RIETVELD METHOD, pCH8
[6]   Grain-size effect on structure and phase transformations for barium titanate [J].
Frey, MH ;
Payne, DA .
PHYSICAL REVIEW B, 1996, 54 (05) :3158-3168
[7]   THERMODYNAMIC THEORY OF PBTIO3 [J].
HAUN, MJ ;
FURMAN, E ;
JANG, SJ ;
MCKINSTRY, HA ;
CROSS, LE .
JOURNAL OF APPLIED PHYSICS, 1987, 62 (08) :3331-3338
[8]   Dimension and size effects in ferroelectrics [J].
Li, S ;
Eastman, JA ;
Vetrone, JM ;
Foster, CM ;
Newnham, RE ;
Cross, LE .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1997, 36 (08) :5169-5174
[9]   Susceptibility of nanostructured ferroelectrics [J].
Li, SP ;
Eastman, JA ;
Newnham, RE ;
Cross, LE .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1996, 35 (4B) :L502-L504
[10]   Size effects in barium titanate particles and clusters [J].
Li, XP ;
Shih, WH .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1997, 80 (11) :2844-2852