Dielectric characteristics of La-modified PbTiO3 nanoceramics

被引：9

作者：

Shukla, Archana ^{[1
]}

Shukla, Namrata ^{[2
]}

Choudhary, R. N. P. ^{[3
]}

机构：

[1] Indian Inst Technol, Dept Met Engn & Mat Sci, Bombay, Maharashtra, India

[2] Illinois State Univ, Dept Phys, Normal, IL 61761 USA

[3] Siksha O Anusandhan Univ, Dept Phys, Inst Tech Educ & Res, Bhubaneswar, Orissa, India

来源：

PHASE TRANSITIONS | 2017年 / 90卷 / 04期

关键词：

Nanoceramics; X-ray diffraction; phase transition; dielectric properties; FERROELECTRIC PHASE-TRANSITION; TITANATE THIN-FILMS; CERAMICS;

D O I：

10.1080/01411594.2016.1201819

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The nanoceramics of lanthanum (La3+)-modified lead titanate (PbTiO3) with a general formula Pb1-yLayTi(1-y/4)O3 (y = 0.00, 0.06, 0.08, 0.10, 0.12 Lead Lanthanum Titanate (PLT)) were synthesized by a mechanothermal method. Thermal analysis of the PLT samples exhibits their nature of the reaction and thermal stability. The incorporation of La at the Pb site of lead titanate (PT) not only changes the ratios of its unit cell parameters but also reduces the grain and particle size to nanoscale. The dielectric constant of PLT is dependent on La concentration. The La concentration-dependent phase transition temperature of PbTiO3 is one of the main characteristics of the material.

引用

页码：362 / 370

页数：9

共 27 条

[1] Effect of lanthanum doping on electrical and electromechanical properties of Ba1-xLaxTiO3 [J].

Aparna, M ;

Bhimasankaram, T ;

Suryanarayana, SV ;

Prasad, G ;

Kumar, GS .

BULLETIN OF MATERIALS SCIENCE, 2001, 24 (05) :497-504

[2]

Cullity B. D., 1978, ELEMENTS XRAY DIFFRA

[3] CRYSTAL CHEMICAL STUDY OF RARE-EARTH IRON GARNETS [J].

ESPINOSA, GP .

JOURNAL OF CHEMICAL PHYSICS, 1962, 37 (10) :2344-&

[4] Ferroelectric ceramics: History and technology [J].

Haertling, GH .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (04) :797-818

[5] Influence of lanthanum doping on the dielectric, ferroelectric and relaxor behaviour of barium bismuth titanate ceramics [J].

Kumar, Sunil ;

Varma, K. B. R. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (07)

[6] Phase formation and ferroelectricity of sol-gel derived (Pb, La)TiO3 thin films [J].

Lee, SJ ;

Kang, KY ;

Han, SK ;

Jang, MS ;

Chae, BG ;

Yang, YS ;

Kim, SH .

APPLIED PHYSICS LETTERS, 1998, 72 (03) :299-301

[7] Room-temperature Preparation of Nano-sized Lanthanum-modified Lead-titanate Powder with a Perovskite Structure Fabricated by Using Mechano-chemical Technique [J].

Lim, Borami ;

Kim, Min-Jung ;

Choa, Yong-Ho ;

Yang, Jae-Kyo ;

Seo, Jung Hye ;

Lee, Youn Seoung ;

Lee, Dong-Suk ;

Noh, Tae-Hyung .

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2009, 55 (04) :1557-1562

[8]

Lines M. E., 2001, Principles and Applications of Ferroelectrics and Related Materials

[9] Investigations on the optical properties of sol-gel derived lanthanum doped lead titanate thin films [J].

Majumder, SB ;

Jain, M ;

Katiyar, RS .

THIN SOLID FILMS, 2002, 402 (1-2) :90-98

[10] Ferroelectric phase transition in Pb0.92Gd0.08(Zr0.53Ti0.47)0.98O3 nanoceramic synthesized by high-energy ball milling [J].

Parashar, SKS ;

Choudhary, RNP ;

Murty, BS .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (09) :6091-6096

← 1 2 3 →