Crystallite growth in yttria-doped superfine zirconia powders and their compacts: A comparison between Y-TZP and YSZ

J. L. Shi; M. L. Ruan; T. S. Yen

doi:10.1016/0272-8842(95)00069-0

Crystallite growth in yttria-doped superfine zirconia powders and their compacts: A comparison between Y-TZP and YSZ

J. L. Shi, M. L. Ruan, T. S. Yen

CAS - Shanghai Institute of Ceramics

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Crystallite growth characteristics in Y-TZP (yttria-tetragonal zirconia polycrystals) and YSZ (yttria-stabilized cubic zirconia) powders and their compacts were compared. When holding at ≤ 1000°C the crystallite size of Y-TZP is greater than YSZ both in powders and in compacted bodies, but the crystallites of YSZ grow faster than Y-TZP at elevated temperatures and the grain size of YSZ becomes larger when heated at 5°C/min to above 1200-1250°C or so, both in powders and in their compacts. It is proposed that this phenomenon results from the different crystallite surface or interface energy between different crystal phases, which affects the initial crystallite size in nucleation at crystallization temperature and crystallite/grain growth rates at higher temperatures.

Original language	English
Pages (from-to)	137-142
Number of pages	6
Journal	Ceramics International
Volume	22
Issue number	2
DOIs	https://doi.org/10.1016/0272-8842(95)00069-0
State	Published - 1996
Externally published	Yes

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title = "Crystallite growth in yttria-doped superfine zirconia powders and their compacts: A comparison between Y-TZP and YSZ",

abstract = "Crystallite growth characteristics in Y-TZP (yttria-tetragonal zirconia polycrystals) and YSZ (yttria-stabilized cubic zirconia) powders and their compacts were compared. When holding at ≤ 1000°C the crystallite size of Y-TZP is greater than YSZ both in powders and in compacted bodies, but the crystallites of YSZ grow faster than Y-TZP at elevated temperatures and the grain size of YSZ becomes larger when heated at 5°C/min to above 1200-1250°C or so, both in powders and in their compacts. It is proposed that this phenomenon results from the different crystallite surface or interface energy between different crystal phases, which affects the initial crystallite size in nucleation at crystallization temperature and crystallite/grain growth rates at higher temperatures.",

author = "Shi, \{J. L.\} and Ruan, \{M. L.\} and Yen, \{T. S.\}",

year = "1996",

doi = "10.1016/0272-8842(95)00069-0",

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T1 - Crystallite growth in yttria-doped superfine zirconia powders and their compacts

T2 - A comparison between Y-TZP and YSZ

AU - Shi, J. L.

AU - Ruan, M. L.

AU - Yen, T. S.

PY - 1996

Y1 - 1996

N2 - Crystallite growth characteristics in Y-TZP (yttria-tetragonal zirconia polycrystals) and YSZ (yttria-stabilized cubic zirconia) powders and their compacts were compared. When holding at ≤ 1000°C the crystallite size of Y-TZP is greater than YSZ both in powders and in compacted bodies, but the crystallites of YSZ grow faster than Y-TZP at elevated temperatures and the grain size of YSZ becomes larger when heated at 5°C/min to above 1200-1250°C or so, both in powders and in their compacts. It is proposed that this phenomenon results from the different crystallite surface or interface energy between different crystal phases, which affects the initial crystallite size in nucleation at crystallization temperature and crystallite/grain growth rates at higher temperatures.

AB - Crystallite growth characteristics in Y-TZP (yttria-tetragonal zirconia polycrystals) and YSZ (yttria-stabilized cubic zirconia) powders and their compacts were compared. When holding at ≤ 1000°C the crystallite size of Y-TZP is greater than YSZ both in powders and in compacted bodies, but the crystallites of YSZ grow faster than Y-TZP at elevated temperatures and the grain size of YSZ becomes larger when heated at 5°C/min to above 1200-1250°C or so, both in powders and in their compacts. It is proposed that this phenomenon results from the different crystallite surface or interface energy between different crystal phases, which affects the initial crystallite size in nucleation at crystallization temperature and crystallite/grain growth rates at higher temperatures.

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DO - 10.1016/0272-8842(95)00069-0

M3 - 文章

AN - SCOPUS:0029754423

SN - 0272-8842

VL - 22

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JO - Ceramics International

JF - Ceramics International

IS - 2

ER -

Crystallite growth in yttria-doped superfine zirconia powders and their compacts: A comparison between Y-TZP and YSZ

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