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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Shrinkage control of yttria-stabilized zirconia during ac electric field-assisted sintering

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Muccillo, R. [1] ; Muccillo, E. N. S. [1]
Total Authors: 2
[1] Energy & Nucl Res Inst IPEN, CCTM, BR-05508900 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of the European Ceramic Society; v. 34, n. 15, p. 3871-3877, DEC 2014.
Web of Science Citations: 9

Yttria-stabilized zirconia pellets were easily and accurately sintered to a predetermined sintering level, including near full density, in an experimental arrangement consisting of a vertical dilatometer and an ac adjustable power supply. Conventional and electric field-assisted sintering steps can be combined, starting from temperatures above 800 degrees C and applying 1000 Hz alternating electric fields in the range 80-160 V cm(-1). A systematic comparison of the microstructures and impedance diagrams of samples conventionally and electric field-assisted sintered to the same density levels shows that the non-conventional sintering method gives significantly small grains in agreement with previous observations. The results show that this sintering method can be applied to produce materials partially sintered at any desired shrinkage level. (C)0 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC