Paper Title:
Preparation of PbTiO3-Based Conductive Ceramic Powders by Gaseous Penetration of Rare Earth
  Abstract

The new type PbTiO3 based ceramic conductive powders were prepared with a special technology, gaseous penetration, which is making rare earth La penetrate into PbTiO3 powders in the gaseous state at high temperature. Through XRD analysis, it is found that there are some new compounds such as LaTiO3 and LaTi3O49 formed after penetration of La, which indicates that the gaseous penetration made La element enter PbTiO3 powders and the complex reactions took place during the penetration process. Through SEM, it can be deduced that the rare earth elements occupied the atom vacancies, formed the new phases and made the grains of La-penetrated PbTiO3 based powders become smaller and finer with less pores and appeared as dispersing structure. All these led to a significant change in electric conductivity, and when the La3+ content in the solvent was 0.02, the penetration temperature was 950°C and the penetration time was 4h, the resistivity at room temperature was the smallest, which decreased from 8.3×108Ω.m to 8.2×10-4Ω•m.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
339-341
DOI
10.4028/www.scientific.net/AMR.105-106.339
Citation
S.E. Hao, D.S. Fu, J.L. Li, C.Y. Wang, "Preparation of PbTiO3-Based Conductive Ceramic Powders by Gaseous Penetration of Rare Earth", Advanced Materials Research, Vols. 105-106, pp. 339-341, 2010
Online since
April 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Mi Dan Li, Huan Niu, Shou Bin Wei, Hong Yang
Chapter 2: Surface Engineering/Coatings
Abstract:Composites made of phenolic resin filled with graphite platelets and copper particles (copper powder, copper fiber or both mixture), are...
1044
Authors: Mi Dan Li, Yao Lu, Lu Lu Feng, Huan Niu, Ya Wen Kong
Chapter 2: Research on Materials,Mechanics and Technologies
Abstract:Composites made from phenolic resin are filled with conductive filler mixtures containing copper powders, natural graphite powders and carbon...
120
Authors: Peng Xia Ji, Hui Min Zhang, Ai Min Chang
Chapter 1: Films, Ceramics and Glasses
Abstract:CO(NH2)2 as pore-former used to prepare porous Ca2.5La0.5Co4O9...
98
Authors: Chen Bing Pi, Xue Xian Cai, Chao Xiao, Hai Peng Yang, Ji Hua Gao, Ling Gao, Hai Tao Yang
Chapter 1: Technologies of Processing and Manufacturing
Abstract:The ultrahigh density zinc oxide doped with 1wt% TiO2 (ZTO) ceramic targets were prepared by pressureless sintering. Scanning...
198