Gaseous penetration of Pr into PbTiO3 ceramics and their electric properties

Xuemei Yang; Sue Hao; Yongde Wei

Gaseous penetration of Pr into PbTiO₃ ceramics and their electric properties

Xuemei Yang
, Sue Hao^*
, Yongde Wei

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The gaseous Pr-penetration is a new method to modify ceramics, which is expected to be a promising method for producing new conductor ceramic materials. The gaseous penetration of Pr into PbTiO₃ ceramics and their improved electric properties were reported. Through XRD, EPMA and SEM analysis, it is confirmed that the gaseous penetration makes Pr enter into PbTiO₃ ceramics, and the new compound of Pr₂Ti₂O₇ is formed by the penetration of Pr in the gaseous state. The formed new Pr₂Ti₂O₇-PbTiO₃ ceramic materials have a significant change in electric properties. The room temperature resistivity decreases from 2.0×10¹⁰Ω·m to 9.487 Ω·m. The grain resistance and the grain boundary resistance decrease with the increase of temperature, and the PTCR effect disappears. The tendency of transition to a conductive body is manifest.

Original language	English
Pages (from-to)	483-485
Number of pages	3
Journal	Journal of Rare Earths
Volume	22
Issue number	4
State	Published - Aug 2004

Keywords

Electric properties
Functional materials
Gaseous penetration
PbTiO ceramics
Rare earths

Cite this

@article{ad180cf3f7724d538d6103902ad0eeb2,

title = "Gaseous penetration of Pr into PbTiO3 ceramics and their electric properties",

abstract = "The gaseous Pr-penetration is a new method to modify ceramics, which is expected to be a promising method for producing new conductor ceramic materials. The gaseous penetration of Pr into PbTiO3 ceramics and their improved electric properties were reported. Through XRD, EPMA and SEM analysis, it is confirmed that the gaseous penetration makes Pr enter into PbTiO3 ceramics, and the new compound of Pr2Ti2O7 is formed by the penetration of Pr in the gaseous state. The formed new Pr2Ti2O7-PbTiO3 ceramic materials have a significant change in electric properties. The room temperature resistivity decreases from 2.0×1010Ω·m to 9.487 Ω·m. The grain resistance and the grain boundary resistance decrease with the increase of temperature, and the PTCR effect disappears. The tendency of transition to a conductive body is manifest.",

keywords = "Electric properties, Functional materials, Gaseous penetration, PbTiO ceramics, Rare earths",

author = "Xuemei Yang and Sue Hao and Yongde Wei",

year = "2004",

month = aug,

language = "英语",

volume = "22",

pages = "483--485",

journal = "Journal of Rare Earths",

issn = "1002-0721",

publisher = "Editorial Office of Chinese Rare Earths",

number = "4",

}

TY - JOUR

T1 - Gaseous penetration of Pr into PbTiO3 ceramics and their electric properties

AU - Yang, Xuemei

AU - Hao, Sue

AU - Wei, Yongde

PY - 2004/8

Y1 - 2004/8

N2 - The gaseous Pr-penetration is a new method to modify ceramics, which is expected to be a promising method for producing new conductor ceramic materials. The gaseous penetration of Pr into PbTiO3 ceramics and their improved electric properties were reported. Through XRD, EPMA and SEM analysis, it is confirmed that the gaseous penetration makes Pr enter into PbTiO3 ceramics, and the new compound of Pr2Ti2O7 is formed by the penetration of Pr in the gaseous state. The formed new Pr2Ti2O7-PbTiO3 ceramic materials have a significant change in electric properties. The room temperature resistivity decreases from 2.0×1010Ω·m to 9.487 Ω·m. The grain resistance and the grain boundary resistance decrease with the increase of temperature, and the PTCR effect disappears. The tendency of transition to a conductive body is manifest.

AB - The gaseous Pr-penetration is a new method to modify ceramics, which is expected to be a promising method for producing new conductor ceramic materials. The gaseous penetration of Pr into PbTiO3 ceramics and their improved electric properties were reported. Through XRD, EPMA and SEM analysis, it is confirmed that the gaseous penetration makes Pr enter into PbTiO3 ceramics, and the new compound of Pr2Ti2O7 is formed by the penetration of Pr in the gaseous state. The formed new Pr2Ti2O7-PbTiO3 ceramic materials have a significant change in electric properties. The room temperature resistivity decreases from 2.0×1010Ω·m to 9.487 Ω·m. The grain resistance and the grain boundary resistance decrease with the increase of temperature, and the PTCR effect disappears. The tendency of transition to a conductive body is manifest.

KW - Electric properties

KW - Functional materials

KW - Gaseous penetration

KW - PbTiO ceramics

KW - Rare earths

UR - https://www.scopus.com/pages/publications/10344226668

M3 - 文章

AN - SCOPUS:10344226668

SN - 1002-0721

VL - 22

SP - 483

EP - 485

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 4

ER -

Gaseous penetration of Pr into PbTiO₃ ceramics and their electric properties

Abstract

Keywords

Other files and links

Fingerprint

Cite this