Phase transformation behavior of 3 mol% yttria partially-stabilized ZrO2 (3Y–PSZ) precursor powder by an isothermal method

Chih-Wei Kuo, Yun-Hwei Shen, Feng-Lin Yen, Huy-Zu Cheng, I-Ming Hung, Shaw-Bing Wen, Moo-Chin Wang, Margaret Stack

Research output: Contribution to journalArticle

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Abstract

The phase transformation behavior of freeze-dried 3 mol% yttria–partially-stabilized zirconia (3Y–PSZ) precursor powder has been studied. When the freeze-dried 3Y–PSZ precursor powder was calcined at 773–1073 K for 2 h, the crystalline structure was composed of tetragonal and monoclinic ZrO2 as primary and secondary phases, respectively. The freeze-dried 3Y–PSZ precursor powder after calcination at 773 K, the monoclinic ZrO2 content abruptly increased from 8.00% to 31.51% and the tetragonal ZrO2 content suddenly decreased from 92.00% to 68.49%, with the duration increasing from 0.5 to 1 min. The activation energy of the isothermal transformation from tetragonal to monoclinic was 7.02 kJ/mol. The kinetics equation for the phase transformation from tetragonal to monoclinic in the freeze-dried 3Y–PSZ precursor powder between 773 K and 1273 K for various durations is described as ln(1/1−α)=1/2.61[t2.61(1.50×10−3)2.61exp(−7.02×310/RT)]; whereas, the HRTEM image shows a typical monoclinic ZrO2 domain because of the stress-induced tetragonal to monoclinic ZrO2 martensitic transformation that has occurred.
LanguageEnglish
Pages3243-3251
Number of pages9
JournalCeramics International
Volume40
Issue number2
Early online date3 Oct 2013
DOIs
Publication statusPublished - Mar 2014

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Yttrium oxide
Powders
Phase transitions
Yttria stabilized zirconia
Martensitic transformations
Calcination
Activation energy
Crystalline materials
Kinetics
yttria

Keywords

  • phase transformation
  • tetragonal ZrO2
  • monoclinic ZrO2
  • 3mol% yttria partially stabilized ZrO2 (3Y–PSZ)
  • martensitic transformation
  • isothermal transformation

Cite this

Kuo, Chih-Wei ; Shen, Yun-Hwei ; Yen, Feng-Lin ; Cheng, Huy-Zu ; Hung, I-Ming ; Wen, Shaw-Bing ; Wang, Moo-Chin ; Stack, Margaret. / Phase transformation behavior of 3 mol% yttria partially-stabilized ZrO2 (3Y–PSZ) precursor powder by an isothermal method. In: Ceramics International. 2014 ; Vol. 40, No. 2. pp. 3243-3251.
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abstract = "The phase transformation behavior of freeze-dried 3 mol{\%} yttria–partially-stabilized zirconia (3Y–PSZ) precursor powder has been studied. When the freeze-dried 3Y–PSZ precursor powder was calcined at 773–1073 K for 2 h, the crystalline structure was composed of tetragonal and monoclinic ZrO2 as primary and secondary phases, respectively. The freeze-dried 3Y–PSZ precursor powder after calcination at 773 K, the monoclinic ZrO2 content abruptly increased from 8.00{\%} to 31.51{\%} and the tetragonal ZrO2 content suddenly decreased from 92.00{\%} to 68.49{\%}, with the duration increasing from 0.5 to 1 min. The activation energy of the isothermal transformation from tetragonal to monoclinic was 7.02 kJ/mol. The kinetics equation for the phase transformation from tetragonal to monoclinic in the freeze-dried 3Y–PSZ precursor powder between 773 K and 1273 K for various durations is described as ln(1/1−α)=1/2.61[t2.61(1.50×10−3)2.61exp(−7.02×310/RT)]; whereas, the HRTEM image shows a typical monoclinic ZrO2 domain because of the stress-induced tetragonal to monoclinic ZrO2 martensitic transformation that has occurred.",
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Phase transformation behavior of 3 mol% yttria partially-stabilized ZrO2 (3Y–PSZ) precursor powder by an isothermal method. / Kuo, Chih-Wei; Shen, Yun-Hwei; Yen, Feng-Lin; Cheng, Huy-Zu; Hung, I-Ming; Wen, Shaw-Bing; Wang, Moo-Chin; Stack, Margaret.

In: Ceramics International, Vol. 40, No. 2, 03.2014, p. 3243-3251.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Phase transformation behavior of 3 mol% yttria partially-stabilized ZrO2 (3Y–PSZ) precursor powder by an isothermal method

AU - Kuo, Chih-Wei

AU - Shen, Yun-Hwei

AU - Yen, Feng-Lin

AU - Cheng, Huy-Zu

AU - Hung, I-Ming

AU - Wen, Shaw-Bing

AU - Wang, Moo-Chin

AU - Stack, Margaret

PY - 2014/3

Y1 - 2014/3

N2 - The phase transformation behavior of freeze-dried 3 mol% yttria–partially-stabilized zirconia (3Y–PSZ) precursor powder has been studied. When the freeze-dried 3Y–PSZ precursor powder was calcined at 773–1073 K for 2 h, the crystalline structure was composed of tetragonal and monoclinic ZrO2 as primary and secondary phases, respectively. The freeze-dried 3Y–PSZ precursor powder after calcination at 773 K, the monoclinic ZrO2 content abruptly increased from 8.00% to 31.51% and the tetragonal ZrO2 content suddenly decreased from 92.00% to 68.49%, with the duration increasing from 0.5 to 1 min. The activation energy of the isothermal transformation from tetragonal to monoclinic was 7.02 kJ/mol. The kinetics equation for the phase transformation from tetragonal to monoclinic in the freeze-dried 3Y–PSZ precursor powder between 773 K and 1273 K for various durations is described as ln(1/1−α)=1/2.61[t2.61(1.50×10−3)2.61exp(−7.02×310/RT)]; whereas, the HRTEM image shows a typical monoclinic ZrO2 domain because of the stress-induced tetragonal to monoclinic ZrO2 martensitic transformation that has occurred.

AB - The phase transformation behavior of freeze-dried 3 mol% yttria–partially-stabilized zirconia (3Y–PSZ) precursor powder has been studied. When the freeze-dried 3Y–PSZ precursor powder was calcined at 773–1073 K for 2 h, the crystalline structure was composed of tetragonal and monoclinic ZrO2 as primary and secondary phases, respectively. The freeze-dried 3Y–PSZ precursor powder after calcination at 773 K, the monoclinic ZrO2 content abruptly increased from 8.00% to 31.51% and the tetragonal ZrO2 content suddenly decreased from 92.00% to 68.49%, with the duration increasing from 0.5 to 1 min. The activation energy of the isothermal transformation from tetragonal to monoclinic was 7.02 kJ/mol. The kinetics equation for the phase transformation from tetragonal to monoclinic in the freeze-dried 3Y–PSZ precursor powder between 773 K and 1273 K for various durations is described as ln(1/1−α)=1/2.61[t2.61(1.50×10−3)2.61exp(−7.02×310/RT)]; whereas, the HRTEM image shows a typical monoclinic ZrO2 domain because of the stress-induced tetragonal to monoclinic ZrO2 martensitic transformation that has occurred.

KW - phase transformation

KW - tetragonal ZrO2

KW - monoclinic ZrO2

KW - 3mol% yttria partially stabilized ZrO2 (3Y–PSZ)

KW - martensitic transformation

KW - isothermal transformation

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DO - 10.1016/j.ceramint.2013.09.112

M3 - Article

VL - 40

SP - 3243

EP - 3251

JO - Ceramics International

T2 - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 2

ER -