Crystallization kinetics and growth mechanism of 8 mol% yttria-stabilized zirconia (8YSZ) nano-powders prepared by a sol-gel process

Chih Wei Kuo, Yueh Hsun Lee, I. Ming Hung, Moo Chin Wang, Shaw Bing Wen, Kuan Zong Fung, Chi Jen Shih

研究成果: Article

41 引文 (Scopus)

摘要

Eight mol% yttria-stabilized zirconia (8YSZ) gel powders were synthesized at 348 K for 2 h using ZrOCl2·8H2O and Y(NO3)3·6H2O as starting materials in an ethanol-water solution by a sol-gel process. The crystallization kinetics and growth mechanism of the 8YSZ gel powders have been investigated using differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The XRD results and SAED pattern show that the 8YSZ gel powders calcined at 773 K for 2 h is a cubic ZrO2. The activation energy for the crystallization of the cubic ZrO2 formation in the 8YSZ gel powders is determined as 231.76 kJ/mol by a non-isothermal DTA method. Both growth morphology parameter (n) and crystallization mechanism index (m) are close to 3.0, indicating that the bulk nucleation is dominant in the cubic ZrO2 formation. The TEM examination shows that the cubic ZrO2 has a spherical-like morphology with a size ranging from 10 to 20 nm.

原文English
頁(從 - 到)470-475
頁數6
期刊Journal of Alloys and Compounds
453
發行號1-2
DOIs
出版狀態Published - 2008 四月 3

指紋

Crystallization kinetics
Yttria stabilized zirconia
Powders
Sol-gel process
Gels
Crystallization
Electron diffraction
Differential thermal analysis
Transmission electron microscopy
X ray diffraction
Diffraction patterns
Ethanol
Nucleation
Activation energy
Scanning electron microscopy
Water

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

引用此文

Kuo, Chih Wei ; Lee, Yueh Hsun ; Hung, I. Ming ; Wang, Moo Chin ; Wen, Shaw Bing ; Fung, Kuan Zong ; Shih, Chi Jen. / Crystallization kinetics and growth mechanism of 8 mol% yttria-stabilized zirconia (8YSZ) nano-powders prepared by a sol-gel process. 於: Journal of Alloys and Compounds. 2008 ; 卷 453, 編號 1-2. 頁 470-475.
@article{a2bff42e1e8f4a59959a4a2515fd79c0,
title = "Crystallization kinetics and growth mechanism of 8 mol{\%} yttria-stabilized zirconia (8YSZ) nano-powders prepared by a sol-gel process",
abstract = "Eight mol{\%} yttria-stabilized zirconia (8YSZ) gel powders were synthesized at 348 K for 2 h using ZrOCl2·8H2O and Y(NO3)3·6H2O as starting materials in an ethanol-water solution by a sol-gel process. The crystallization kinetics and growth mechanism of the 8YSZ gel powders have been investigated using differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The XRD results and SAED pattern show that the 8YSZ gel powders calcined at 773 K for 2 h is a cubic ZrO2. The activation energy for the crystallization of the cubic ZrO2 formation in the 8YSZ gel powders is determined as 231.76 kJ/mol by a non-isothermal DTA method. Both growth morphology parameter (n) and crystallization mechanism index (m) are close to 3.0, indicating that the bulk nucleation is dominant in the cubic ZrO2 formation. The TEM examination shows that the cubic ZrO2 has a spherical-like morphology with a size ranging from 10 to 20 nm.",
author = "Kuo, {Chih Wei} and Lee, {Yueh Hsun} and Hung, {I. Ming} and Wang, {Moo Chin} and Wen, {Shaw Bing} and Fung, {Kuan Zong} and Shih, {Chi Jen}",
year = "2008",
month = "4",
day = "3",
doi = "10.1016/j.jallcom.2006.11.146",
language = "English",
volume = "453",
pages = "470--475",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "1-2",

}

Crystallization kinetics and growth mechanism of 8 mol% yttria-stabilized zirconia (8YSZ) nano-powders prepared by a sol-gel process. / Kuo, Chih Wei; Lee, Yueh Hsun; Hung, I. Ming; Wang, Moo Chin; Wen, Shaw Bing; Fung, Kuan Zong; Shih, Chi Jen.

於: Journal of Alloys and Compounds, 卷 453, 編號 1-2, 03.04.2008, p. 470-475.

研究成果: Article

TY - JOUR

T1 - Crystallization kinetics and growth mechanism of 8 mol% yttria-stabilized zirconia (8YSZ) nano-powders prepared by a sol-gel process

AU - Kuo, Chih Wei

AU - Lee, Yueh Hsun

AU - Hung, I. Ming

AU - Wang, Moo Chin

AU - Wen, Shaw Bing

AU - Fung, Kuan Zong

AU - Shih, Chi Jen

PY - 2008/4/3

Y1 - 2008/4/3

N2 - Eight mol% yttria-stabilized zirconia (8YSZ) gel powders were synthesized at 348 K for 2 h using ZrOCl2·8H2O and Y(NO3)3·6H2O as starting materials in an ethanol-water solution by a sol-gel process. The crystallization kinetics and growth mechanism of the 8YSZ gel powders have been investigated using differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The XRD results and SAED pattern show that the 8YSZ gel powders calcined at 773 K for 2 h is a cubic ZrO2. The activation energy for the crystallization of the cubic ZrO2 formation in the 8YSZ gel powders is determined as 231.76 kJ/mol by a non-isothermal DTA method. Both growth morphology parameter (n) and crystallization mechanism index (m) are close to 3.0, indicating that the bulk nucleation is dominant in the cubic ZrO2 formation. The TEM examination shows that the cubic ZrO2 has a spherical-like morphology with a size ranging from 10 to 20 nm.

AB - Eight mol% yttria-stabilized zirconia (8YSZ) gel powders were synthesized at 348 K for 2 h using ZrOCl2·8H2O and Y(NO3)3·6H2O as starting materials in an ethanol-water solution by a sol-gel process. The crystallization kinetics and growth mechanism of the 8YSZ gel powders have been investigated using differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The XRD results and SAED pattern show that the 8YSZ gel powders calcined at 773 K for 2 h is a cubic ZrO2. The activation energy for the crystallization of the cubic ZrO2 formation in the 8YSZ gel powders is determined as 231.76 kJ/mol by a non-isothermal DTA method. Both growth morphology parameter (n) and crystallization mechanism index (m) are close to 3.0, indicating that the bulk nucleation is dominant in the cubic ZrO2 formation. The TEM examination shows that the cubic ZrO2 has a spherical-like morphology with a size ranging from 10 to 20 nm.

UR - http://www.scopus.com/inward/record.url?scp=40149087701&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40149087701&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2006.11.146

DO - 10.1016/j.jallcom.2006.11.146

M3 - Article

AN - SCOPUS:40149087701

VL - 453

SP - 470

EP - 475

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 1-2

ER -