Paper Title:
High Density Ba2AlWO5.5 Ceramic Compacts Produced through Liquid Phase Sintering Route for Temperature Sensores
  Abstract

Structural and functional characteristics of ceramic components highly depend on their microstructure and mechanical properties. In the production of such ceramics sintering plays extremely important role. Recently, we are working on the development and fabrication of temperature sensors for the petroleum wells. In this connection, we have developed a new alumina based ordered complex cubic peroviskite oxide ceramic Ba2AlWO5.5. During our study, we found that Ba2AlWO5.5ceramics compacts could not be densified by normal sintering route. To overcome this hurdle, we have utilized the liquid phase sintering process, using CuO additives. By addition of 1 to 2 wt% CuO, we succeeded to sinter this ceramic in the temperature range 1200 to 14000 C. Sintered Ba2AlWO5.5 ceramics were examined by X-diffraction and scanning electron microscopy to verify the presence of any extra phase due to CuO addition in the Ba2AlWO5.5 matrix. Our studies revealed that CuO addition did not affect the structural characteristics, but considerably modified the densification process, microstrutural characteristics and consequently mechanical properties of the Ba2AlWO5.5 ceramics.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
448-453
DOI
10.4028/www.scientific.net/MSF.591-593.448
Citation
Y. P. Yadava, R. A. S. Ferreira, "High Density Ba2AlWO5.5 Ceramic Compacts Produced through Liquid Phase Sintering Route for Temperature Sensores", Materials Science Forum, Vols. 591-593, pp. 448-453, 2008
Online since
August 2008
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: M. Erol, S. Küçükbayrak, A. Ersoy-Meriçboyu, M. Lutfy Öveçoğlu
1839
Authors: K. Konopka
Abstract:The present paper is focused on ceramic–metal composites obtained via different technologies which leads to different microstructures in...
139
Authors: Camila M. Lapa, Ricardo Arthur Sanguinetti Ferreira, J. Albino Aguiar, Charles L. da Silva, Dulcina P.F. Souza, Yogendra Prasad Yadava
Abstract:In high technology industries ceramics have several uses, especially at high temperature, e.g. inert crucibles, electrodes and catalysts. We...
529
Authors: Małgorzata Lewandowska, Joanna Siejka-Kulczyk, Mariusz Andrzejczuk, Krzysztof J. Kurzydłowski
Abstract:Currently, nanopowders and nanocomposites reinforced with nanofillers are one of the most rapidly developing groups of materials possessing...
133
Authors: Guang Lei Zhang, Guo Qiang Qin, Hui Gao, Chang Tao Shao
Abstract:This paper focused on the properties of Al2O3-rainforced feldspar dental ceramic. The results indicated that the introduced Al2O3 could...
390