Phase transition and crystal growth of YSZ nanoparticles with various Y
                        2
                        O
                        3
                         contents prepared by sol-gel process

Chih Wei Kuo; Yueh Hsun Lee; Kuan-Zong Fung; Moo Chin Wang

Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process

Chih Wei Kuo, Yueh Hsun Lee, Kuan-Zong Fung, Moo Chin Wang

Research output: Contribution to conference › Paper › peer-review

Abstract

The phase transition and growth of yttria-stabilized zirconia (YSZ) nanocrystallites prepared by a sol-gel process with various amounts of ZrOCl ₂ ·8H ₂ O and Y(NO ₃ ) ₃ ·6H ₂ O in ethanol-water solutions at low temperatures were studied. DTA/TGA, XRD, and TEM were used to characterize the YSZ nanocrystallites. The crystallization temperature of 3YSZ, in which Y ₂ O ₃ /(Y ₂ O ₃ +ZrO ₂ ) = 0.03 gel powders, estimated by DTA/TG is about 427°C. When 3YSZ and 5YSZ gels were calcined at 500°C, their crystal structures were composed of coexisting tetragonal and monoclinic ZrO ₂ . Cubic ZrO ₂ was obtained when added Y ₂ O ₃ was greater than 8 mol%. A nanocrystallite size distribution between 10 and 20 nm was obtained from TEM observations.

Original language	English
Pages	986-991
Number of pages	6
Publication status	Published - 2005 Dec 1
Event	9th International Symposium on Solid Oxide Fuel Cells, SOFC IX - Quebec, Canada Duration: 2005 May 15 → 2005 May 20

Other

Other	9th International Symposium on Solid Oxide Fuel Cells, SOFC IX
Country/Territory	Canada
City	Quebec
Period	05-05-15 → 05-05-20

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

Kuo, C. W., Lee, Y. H., Fung, K.-Z., & Wang, M. C. (2005). Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process . 986-991. Paper presented at 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada.

Kuo, Chih Wei ; Lee, Yueh Hsun ; Fung, Kuan-Zong et al. / Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process Paper presented at 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada.6 p.

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title = " Phase transition and crystal growth of YSZ nanoparticles with various Y 2 O 3 contents prepared by sol-gel process ",

abstract = " The phase transition and growth of yttria-stabilized zirconia (YSZ) nanocrystallites prepared by a sol-gel process with various amounts of ZrOCl 2 ·8H 2 O and Y(NO 3 ) 3 ·6H 2 O in ethanol-water solutions at low temperatures were studied. DTA/TGA, XRD, and TEM were used to characterize the YSZ nanocrystallites. The crystallization temperature of 3YSZ, in which Y 2 O 3 /(Y 2 O 3 +ZrO 2 ) = 0.03 gel powders, estimated by DTA/TG is about 427°C. When 3YSZ and 5YSZ gels were calcined at 500°C, their crystal structures were composed of coexisting tetragonal and monoclinic ZrO 2 . Cubic ZrO 2 was obtained when added Y 2 O 3 was greater than 8 mol%. A nanocrystallite size distribution between 10 and 20 nm was obtained from TEM observations. ",

author = "Kuo, {Chih Wei} and Lee, {Yueh Hsun} and Kuan-Zong Fung and Wang, {Moo Chin}",

year = "2005",

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language = "English",

pages = "986--991",

note = "9th International Symposium on Solid Oxide Fuel Cells, SOFC IX ; Conference date: 15-05-2005 Through 20-05-2005",

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Kuo, CW, Lee, YH, Fung, K-Z & Wang, MC 2005, ' Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process ', Paper presented at 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada, 05-05-15 - 05-05-20 pp. 986-991.

Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process . / Kuo, Chih Wei; Lee, Yueh Hsun; Fung, Kuan-Zong et al.
2005. 986-991 Paper presented at 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Phase transition and crystal growth of YSZ nanoparticles with various Y 2 O 3 contents prepared by sol-gel process

AU - Kuo, Chih Wei

AU - Lee, Yueh Hsun

AU - Fung, Kuan-Zong

AU - Wang, Moo Chin

PY - 2005/12/1

Y1 - 2005/12/1

N2 - The phase transition and growth of yttria-stabilized zirconia (YSZ) nanocrystallites prepared by a sol-gel process with various amounts of ZrOCl 2 ·8H 2 O and Y(NO 3 ) 3 ·6H 2 O in ethanol-water solutions at low temperatures were studied. DTA/TGA, XRD, and TEM were used to characterize the YSZ nanocrystallites. The crystallization temperature of 3YSZ, in which Y 2 O 3 /(Y 2 O 3 +ZrO 2 ) = 0.03 gel powders, estimated by DTA/TG is about 427°C. When 3YSZ and 5YSZ gels were calcined at 500°C, their crystal structures were composed of coexisting tetragonal and monoclinic ZrO 2 . Cubic ZrO 2 was obtained when added Y 2 O 3 was greater than 8 mol%. A nanocrystallite size distribution between 10 and 20 nm was obtained from TEM observations.

AB - The phase transition and growth of yttria-stabilized zirconia (YSZ) nanocrystallites prepared by a sol-gel process with various amounts of ZrOCl 2 ·8H 2 O and Y(NO 3 ) 3 ·6H 2 O in ethanol-water solutions at low temperatures were studied. DTA/TGA, XRD, and TEM were used to characterize the YSZ nanocrystallites. The crystallization temperature of 3YSZ, in which Y 2 O 3 /(Y 2 O 3 +ZrO 2 ) = 0.03 gel powders, estimated by DTA/TG is about 427°C. When 3YSZ and 5YSZ gels were calcined at 500°C, their crystal structures were composed of coexisting tetragonal and monoclinic ZrO 2 . Cubic ZrO 2 was obtained when added Y 2 O 3 was greater than 8 mol%. A nanocrystallite size distribution between 10 and 20 nm was obtained from TEM observations.

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Kuo CW, Lee YH, Fung KZ, Wang MC. Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process . 2005. Paper presented at 9th International Symposium on Solid Oxide Fuel Cells, SOFC IX, Quebec, Canada.

Phase transition and crystal growth of YSZ nanoparticles with various Y ₂ O ₃ contents prepared by sol-gel process

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