Enhanced nucleation undercooling and surface self-nanocrystallization of Al2O3-ZrO2(Y2O3) eutectic ceramics

Zhi Gang Wang; Jia Hu Ouyang; Yong Hui Ma; Yu Jin Wang; Ling Yun Xie; Abdelkhalek Henniche; Zhan Guo Liu

doi:10.1016/j.jeurceramsoc.2018.12.011

Enhanced nucleation undercooling and surface self-nanocrystallization of Al₂O₃-ZrO₂(Y₂O₃) eutectic ceramics

Zhi Gang Wang
, Jia Hu Ouyang^*
, Yong Hui Ma
, Yu Jin Wang
, Ling Yun Xie
, Abdelkhalek Henniche
, Zhan Guo Liu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

14 Scopus citations

Abstract

This present work explores initially the feasibility of producing in-situ surface nanoeutectic Al₂O₃-ZrO₂(Y₂O₃) (SNAZ) ceramics via the oxyacetylene flame remelting (OAFR) process. Singular cellular nanoeutectics consist of nanoscale lamellae, which prevail in the samples formed under different irradiation times. Ultrafine nanoeutectics are achieved by prolonging the irradiation time, and their formation mechanisms associated with eutectic refinement are proposed to obtain a better understanding on the melt thermal history and microstructural inheritance. The enhanced nucleation undercooling is the essential mechanism associated with the microstructural refinement. SNAZ formed by the OAFR-based rapid solidification seem to offer an inexpensive route to realize in-situ microstructure tailoring or surface shaping.

Original language	English
Pages (from-to)	1707-1711
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	39
Issue number	4
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2018.12.011
State	Published - Apr 2019

Keywords

AlO-ZrO(YO) ceramics
Nanoeutectic
Oxy-acetylene flame
Surface nanocrystallization

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10.1016/j.jeurceramsoc.2018.12.011

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title = "Enhanced nucleation undercooling and surface self-nanocrystallization of Al2O3-ZrO2(Y2O3) eutectic ceramics",

abstract = "This present work explores initially the feasibility of producing in-situ surface nanoeutectic Al2O3-ZrO2(Y2O3) (SNAZ) ceramics via the oxyacetylene flame remelting (OAFR) process. Singular cellular nanoeutectics consist of nanoscale lamellae, which prevail in the samples formed under different irradiation times. Ultrafine nanoeutectics are achieved by prolonging the irradiation time, and their formation mechanisms associated with eutectic refinement are proposed to obtain a better understanding on the melt thermal history and microstructural inheritance. The enhanced nucleation undercooling is the essential mechanism associated with the microstructural refinement. SNAZ formed by the OAFR-based rapid solidification seem to offer an inexpensive route to realize in-situ microstructure tailoring or surface shaping.",

keywords = "AlO-ZrO(YO) ceramics, Nanoeutectic, Oxy-acetylene flame, Surface nanocrystallization",

author = "Wang, \{Zhi Gang\} and Ouyang, \{Jia Hu\} and Ma, \{Yong Hui\} and Wang, \{Yu Jin\} and Xie, \{Ling Yun\} and Abdelkhalek Henniche and Liu, \{Zhan Guo\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

month = apr,

doi = "10.1016/j.jeurceramsoc.2018.12.011",

language = "英语",

volume = "39",

pages = "1707--1711",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

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TY - JOUR

T1 - Enhanced nucleation undercooling and surface self-nanocrystallization of Al2O3-ZrO2(Y2O3) eutectic ceramics

AU - Wang, Zhi Gang

AU - Ouyang, Jia Hu

AU - Ma, Yong Hui

AU - Wang, Yu Jin

AU - Xie, Ling Yun

AU - Henniche, Abdelkhalek

AU - Liu, Zhan Guo

PY - 2019/4

Y1 - 2019/4

N2 - This present work explores initially the feasibility of producing in-situ surface nanoeutectic Al2O3-ZrO2(Y2O3) (SNAZ) ceramics via the oxyacetylene flame remelting (OAFR) process. Singular cellular nanoeutectics consist of nanoscale lamellae, which prevail in the samples formed under different irradiation times. Ultrafine nanoeutectics are achieved by prolonging the irradiation time, and their formation mechanisms associated with eutectic refinement are proposed to obtain a better understanding on the melt thermal history and microstructural inheritance. The enhanced nucleation undercooling is the essential mechanism associated with the microstructural refinement. SNAZ formed by the OAFR-based rapid solidification seem to offer an inexpensive route to realize in-situ microstructure tailoring or surface shaping.

AB - This present work explores initially the feasibility of producing in-situ surface nanoeutectic Al2O3-ZrO2(Y2O3) (SNAZ) ceramics via the oxyacetylene flame remelting (OAFR) process. Singular cellular nanoeutectics consist of nanoscale lamellae, which prevail in the samples formed under different irradiation times. Ultrafine nanoeutectics are achieved by prolonging the irradiation time, and their formation mechanisms associated with eutectic refinement are proposed to obtain a better understanding on the melt thermal history and microstructural inheritance. The enhanced nucleation undercooling is the essential mechanism associated with the microstructural refinement. SNAZ formed by the OAFR-based rapid solidification seem to offer an inexpensive route to realize in-situ microstructure tailoring or surface shaping.

KW - AlO-ZrO(YO) ceramics

KW - Nanoeutectic

KW - Oxy-acetylene flame

KW - Surface nanocrystallization

UR - https://www.scopus.com/pages/publications/85057793126

U2 - 10.1016/j.jeurceramsoc.2018.12.011

DO - 10.1016/j.jeurceramsoc.2018.12.011

M3 - 文章

AN - SCOPUS:85057793126

SN - 0955-2219

VL - 39

SP - 1707

EP - 1711

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 4

ER -

Enhanced nucleation undercooling and surface self-nanocrystallization of Al₂O₃-ZrO₂(Y₂O₃) eutectic ceramics

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Keywords

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