Paper Title:
Synthesis and Characterization of Pyrochlore Lead Zinc Niobate Nanopowders Derived from Zn3Nb2O8 Precursor
  Abstract

A novel approach to synthesis cubic pyrochlore lead zinc niobate-based Pb1.88Zn0.3Nb1.25O5.305 nanopowders with a modified mixed-oxide method has been developed. To ensure a pure phase pyrochlore formation, an intermediate phase of Zn3Nb2O8 was employed as key precursor. The formation of pyrochlore phase in the calcined lead zinc niobate powders has been examined as a function of firing temperature by a combination of TG-DTA and XRD techniques. The morphology evolution has been examined by SEM technique. It has been found that the unreacted PbO and Zn3Nb2O8 phases tend to form together with lead zinc niobate, with the latter appearing in cubic phase. It is seen that optimization of firing temperature can lead to a single-phase Pb1.88Zn0.3Nb1.25O5.305 powders with average particle sizes ranging from 75-400 nm.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
704-707
DOI
10.4028/www.scientific.net/AMR.194-196.704
Citation
P. Pakawanit, S. Ananta, "Synthesis and Characterization of Pyrochlore Lead Zinc Niobate Nanopowders Derived from Zn3Nb2O8 Precursor", Advanced Materials Research, Vols. 194-196, pp. 704-707, 2011
Online since
February 2011
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: Jie Qiang Wang, Qing Hua Yu, Shao Hua Zheng, Zhi Wang
Abstract:Using NH4HCO3 solution as precipitant, the ultrafine 3Y-ZrO2/Al2O3 precursors were prepared by the liquid-phase precipitation method. The...
1137
Authors: Yan Chen, Nina Orlovskaya, Nicholas Miller, Harry Abernathy, Daniel Haynes, David Tucker, Randall Gemmen
Abstract:Materials with A2B2O7 (pyrochlore) structure have received a significant attention for their applications as new protonic conductors and...
56
Authors: Yi Shan Jiang, Jiang Hua Luo, Zhen Li, Lu Ning Chen
Chapter 9: Nano Materials
Abstract:Cornstalk fibers were modified with surface modification and the properties of cornstalk fiber/gypsum composites was studied. The results...
1162
Authors: S. Tigunta, W. Leenakul, Sukum Eitssayeam, Gobwute Rujijanagul, Tawee Tunkasiri, Kamonpan Pengpat
II. Biomaterials Science
Abstract:Hydroxyapatite (HA) is classified as one of the important bioceramics, which has been used in orthopedics, medical and dental applications....
170
Authors: Gunawan, I. Sopyan, A. Naqshbandi, S. Ramesh
Chapter 2: Nanotechnology and Micro/Nano Electro Mechanical Systems
Abstract:Biphasic calcium phosphate powders doped with zinc (Zn-doped BCP) were synthesized via sol-gel technique. Different concentrations of Zn have...
614