EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS

EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS

The zirconia-yttrium aluminum garnet (Zr-YAG) long fibers were successfully prepared through sol-gel method following by sintering at 1000oC, with aluminum powder, yttria, zirconium oxychloride and aluminum chloride as raw materials and polyvinylpyrrolidone as spinning additive. YAG phase was only o...

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Main Authors: Hongbin Tan, Xiaoling Ma, Lu Jinhua, Li Kezhi
Format: Article
Language:English
Published: University of Chemistry and Technology, Prague 2014-06-01
Series:Ceramics-Silikáty
Subjects:
Zr-YAG
Fibers
Sol-Gel Method
Activation Energy
Online Access: http://www.ceramics-silikaty.cz/2014/pdf/2014_02_118.pdf
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spelling doaj-a83d1aacd7ce4470a8b90a99e330e98e2020-11-24T22:42:34ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472014-06-01582118122.20160312094430EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERSHongbin Tan0Xiaoling MaLu Jinhua1Li Kezhi2 State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi The zirconia-yttrium aluminum garnet (Zr-YAG) long fibers were successfully prepared through sol-gel method following by sintering at 1000oC, with aluminum powder, yttria, zirconium oxychloride and aluminum chloride as raw materials and polyvinylpyrrolidone as spinning additive. YAG phase was only observed in the fibers with smooth surface after sintering at 1000oC for 2 hours. However, a rough surface with an average grain size of 2 μm could appear when gel fibers were sintered at 1400oC for 6 hours. Calculated from Kissinger equation, the crystallization activation energy value (Ea) of Zr-YAG fibers was 59.69 kJ/mol. The Ea value is lower than YAG crystallization values by other authors. http://www.ceramics-silikaty.cz/2014/pdf/2014_02_118.pdf Zr-YAG Fibers Sol-Gel Method Activation Energy
collection DOAJ
language English
format Article
sources DOAJ
author Hongbin Tan
Xiaoling Ma
Lu Jinhua
Li Kezhi
spellingShingle Hongbin Tan
Xiaoling Ma
Lu Jinhua
Li Kezhi
EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
Ceramics-Silikáty
Zr-YAG
Fibers
Sol-Gel Method
Activation Energy
author_facet Hongbin Tan
Xiaoling Ma
Lu Jinhua
Li Kezhi
author_sort Hongbin Tan
title EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
title_short EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
title_full EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
title_fullStr EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
title_full_unstemmed EFFECT OF ZIRCONIA ON CRYSTALLIZATION OF YTTRIUM ALUMINUM GARNET PRECURSOR GEL FIBERS
title_sort effect of zirconia on crystallization of yttrium aluminum garnet precursor gel fibers
publisher University of Chemistry and Technology, Prague
series Ceramics-Silikáty
issn 0862-5468
1804-5847
publishDate 2014-06-01
description The zirconia-yttrium aluminum garnet (Zr-YAG) long fibers were successfully prepared through sol-gel method following by sintering at 1000oC, with aluminum powder, yttria, zirconium oxychloride and aluminum chloride as raw materials and polyvinylpyrrolidone as spinning additive. YAG phase was only observed in the fibers with smooth surface after sintering at 1000oC for 2 hours. However, a rough surface with an average grain size of 2 μm could appear when gel fibers were sintered at 1400oC for 6 hours. Calculated from Kissinger equation, the crystallization activation energy value (Ea) of Zr-YAG fibers was 59.69 kJ/mol. The Ea value is lower than YAG crystallization values by other authors.
topic Zr-YAG
Fibers
Sol-Gel Method
Activation Energy
url http://www.ceramics-silikaty.cz/2014/pdf/2014_02_118.pdf
work_keys_str_mv AT hongbintan effectofzirconiaoncrystallizationofyttriumaluminumgarnetprecursorgelfibers
AT xiaolingma effectofzirconiaoncrystallizationofyttriumaluminumgarnetprecursorgelfibers
AT lujinhua effectofzirconiaoncrystallizationofyttriumaluminumgarnetprecursorgelfibers
AT likezhi effectofzirconiaoncrystallizationofyttriumaluminumgarnetprecursorgelfibers
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