大连理工大学主页平台管理系统付雪松 Tailoring the morphology in Y2O3 doped melt-grown Al2O3/ZrO2 eutectic ceramic 中文主页

论文成果

Tailoring the morphology in Y2O3 doped melt-grown Al2O3/ZrO2 eutectic ceramic: 点击次数：; 发布时间： 2019-03-12; 发布时间：2019-03-12; 论文类型：期刊论文; 发表时间：2017-03-01; 发表刊物：SCRIPTA MATERIALIA; 收录刊物：EI、SCIE; 卷号：129; 页面范围：20-24; ISSN号：1359-6462; 关键字：Eutectic ceramic; Al2O3/ZrO2(Y2O3); Crystal growth; Constitutional supercooling; 摘要：The addition of more components are an interesting way of the microstructural controls. Herein, adding Y2O3 to Al2O3-ZrO2 bulk eutectic at the low G/v ratio (thermal gradient G divided by growth rate v) was adopted to tailor the morphology. As the Y2O3 content increases, the solidification structure changes obviously from cellular into the, dendritic shape. Especially, a typical irregular Al2O3/ZrO2/Y3Al5O12 (YAG) ternary eutectic appeared in the inter -colony region for the higher Y2O3 content. This microstructure transition is consistent with the classical constitutional supercooling criterion. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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副教授博士生导师硕士生导师

性别：男

毕业院校：大连理工大学

学位：博士

所在单位：材料科学与工程学院

学科：材料加工工程

办公地点：大连理工大学铸造中工程心

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