Synthesis of Nanocrystalline Tetragonal Zirconia
Date Issued
2001-09-20
Date
2001-09-20
Author(s)
DOI
892214E002062
Abstract
This paper principally discuss how the
surface hydroxyls removed by HDMS
treatment or not influece the ZrO2
powders.For the powders without HDMS
treatment the content of t-ZrO2 was found
to decrease with increasing calcination
time and temperature. Nevertheless, for the
powders with removing surface hydroxyls
by HDMS treatment, either pure or with
yttrium-doping, only the t-ZrO2 was
produced throughout the entire calcination
temperature from 300 to 1100 o C and the
average crystallite size of t-ZrO2 was
merely 6.5nm after calcination up to 900 o C. In addition, the specific surface area of
powders with HDMS treatment was larger
than those without HDMS treatment. These make it possible to test the reversibility by,
after the cold work, carrying out thermal
treatment at sufficiently high temperatures
while maintaining the crystallite not
exceeding the “critical size”.
Subjects
nanocrystalline
zirconia
sol-gel synthesis
Publisher
臺北市：國立臺灣大學化學工程學系暨研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
892214E002062.pdf
Size
108.54 KB
Format
Adobe PDF
Checksum
(MD5):ddd9d53c8aceeefe7d9a6e2e2c9aae85