Manufacture process of 8Y2O3 stabilized ZrO2 from nano powders

The manufacture process of 8mol% Y2O3 stabilized ZrO2 (YSZ) from nano powders, including the forming and sintering stages, was studied. During the forming process of YSZ powders, the relative density of YSZ increases lineally with the forming press, and the sintering linear shrinkage of YSZ to the f...

Full description

Saved in:
Bibliographic Details
Published inJournal of Wuhan University of Technology. Materials science edition Vol. 19; no. 3; pp. 10 - 13
Main Authors Han, Min-Fang, Li, Bo-Tao, Peng, Su-Ping
Format Journal Article
LanguageEnglish
Published Wuhan Springer Nature B.V 01.09.2004
China University of Mining & Technology
Subjects
Shrinkage
Sintering
Sintering (powder metallurgy)
Specific gravity
Yttria-stabilized zirconia
Yttrium oxide
Zirconium dioxide
nano powders
8mol％ Y2O3 stabilized ZrO2(YSZ)
sintering process
forming process
Online AccessGet full text

Cover

More Information
Summary:The manufacture process of 8mol% Y2O3 stabilized ZrO2 (YSZ) from nano powders, including the forming and sintering stages, was studied. During the forming process of YSZ powders, the relative density of YSZ increases lineally with the forming press, and the sintering linear shrinkage of YSZ to the forming press compiles to the parabola trend. When the forming press exceeding 500MPa, the samples with lower shrinkage and high density were obtained. The sintering temperature of YSZ decreases greatly because of the small size and high active surface of YSZ powders. As a result, the beginning sintering temperature of YSZ made in the experiment is as low as 825 deg C, and the end sintering temperature is 1300-1350 deg C. The relative density of YSZ ceramic by solid sintering at 1300-1350DGC is more than 97%, with little and small pores in the uniform microstructure.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1000-2413
1993-0437
DOI:10.1007/BF02835049