Nanocrystalline zirconia based powders synthesized by hydrothermal method
Nanocrystalline powders in the ZrO2-Y2O3-CeO2-CoO-Al2O3 system with 1 and 10 mol% Al2O3 were prepared via hydrothermal treatment in alkaline medium. The characteristics of nanocrystalline powders after heat treatment in the temperature range from 500 to 1200 °C were investigated by XRD phase analysi...
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University of Novi Sad
2012-09-01
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doaj-93dbfb1bda8842549f4346b3853c09ee2020-11-25T00:02:44ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312012-09-0163151157Nanocrystalline zirconia based powders synthesized by hydrothermal methodViktoria TsukrenkoElena DudnikAlexey ShevchenkoNanocrystalline powders in the ZrO2-Y2O3-CeO2-CoO-Al2O3 system with 1 and 10 mol% Al2O3 were prepared via hydrothermal treatment in alkaline medium. The characteristics of nanocrystalline powders after heat treatment in the temperature range from 500 to 1200 °C were investigated by XRD phase analysis, scanning electron microscopy, petrography and BET measurements. It was found that hydrothermally treated powders contained metastable low-temperature cubic solid solution based on ZrO2 and addition of Al2O3 increased temperature of phase transformation of the metastable cubic- ZrO2 to tetragonal-ZrO2. It was evidenced that both powders remained nanocrystalline after all processing steps with the average particle sizes from 8 to 20 nm. The addition of 0.3 mol% CoO allows one to obtain composites with good sinterability at 1200 °C.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2017%2005.pdfZirconiaNanocrystalline powderHydrothermal treatment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Viktoria Tsukrenko Elena Dudnik Alexey Shevchenko |
spellingShingle |
Viktoria Tsukrenko Elena Dudnik Alexey Shevchenko Nanocrystalline zirconia based powders synthesized by hydrothermal method Processing and Application of Ceramics Zirconia Nanocrystalline powder Hydrothermal treatment |
author_facet |
Viktoria Tsukrenko Elena Dudnik Alexey Shevchenko |
author_sort |
Viktoria Tsukrenko |
title |
Nanocrystalline zirconia based powders synthesized by hydrothermal method |
title_short |
Nanocrystalline zirconia based powders synthesized by hydrothermal method |
title_full |
Nanocrystalline zirconia based powders synthesized by hydrothermal method |
title_fullStr |
Nanocrystalline zirconia based powders synthesized by hydrothermal method |
title_full_unstemmed |
Nanocrystalline zirconia based powders synthesized by hydrothermal method |
title_sort |
nanocrystalline zirconia based powders synthesized by hydrothermal method |
publisher |
University of Novi Sad |
series |
Processing and Application of Ceramics |
issn |
1820-6131 |
publishDate |
2012-09-01 |
description |
Nanocrystalline powders in the ZrO2-Y2O3-CeO2-CoO-Al2O3 system with 1 and 10 mol% Al2O3 were prepared via hydrothermal treatment in alkaline medium. The characteristics of nanocrystalline powders after heat treatment in the temperature range from 500 to 1200 °C were investigated by XRD phase analysis, scanning electron microscopy, petrography and BET measurements. It was found that hydrothermally treated powders contained metastable low-temperature cubic solid solution based on ZrO2 and addition of Al2O3 increased temperature of phase transformation of the metastable cubic- ZrO2 to tetragonal-ZrO2. It was evidenced that both powders remained nanocrystalline after all processing steps with the average particle sizes from 8 to 20 nm. The addition of 0.3 mol% CoO allows one to obtain composites with good sinterability at 1200 °C. |
topic |
Zirconia Nanocrystalline powder Hydrothermal treatment |
url |
http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2017%2005.pdf |
work_keys_str_mv |
AT viktoriatsukrenko nanocrystallinezirconiabasedpowderssynthesizedbyhydrothermalmethod AT elenadudnik nanocrystallinezirconiabasedpowderssynthesizedbyhydrothermalmethod AT alexeyshevchenko nanocrystallinezirconiabasedpowderssynthesizedbyhydrothermalmethod |
_version_ |
1725436860077965312 |