史国栋

个人信息Personal Information

副教授

硕士生导师

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:材料科学与工程学院

学科:航空宇航制造工程. 飞行器设计. 材料学. 航空航天力学与工程

办公地点:综合实验1号楼201B室

联系方式:gdshi@dlut.edu.cn

电子邮箱:gdshi@dlut.edu.cn

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Porous alumina ceramics produced by physical vapor deposition assisted freeze-casting method

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论文类型:期刊论文

第一作者:Shi, Guodong

通讯作者:Wang, Z (reprint author), Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

合写作者:Wu, Zhanjun,Jiang, Chunyu,Peng, Siting,Yan, Jia,Wang, Zhi

发表时间:2015-12-15

发表刊物:MATERIALS LETTERS

收录刊物:SCIE、EI、Scopus

卷号:161

页面范围:580-582

ISSN号:0167-577X

关键字:Physical vapor deposition; Freeze-casting; Porous materials; Multilayer structure; Ceramics

摘要:A novel physical vapor deposition assisted freeze-casting method was used to fabricate porous alumina. Through reserving a gap between the cold finger and the ceramic particle suspension, the lamellar ice crystals were firstly formed on the surface of the cold finger and grew toward the suspension by physical vapor deposition. Using a moderate gap width (2.5 mm), the previously deposited lamellar ice could continuously grow into the suspension, forming lamellar alumina structure. A small (or large) gap would lead to a lamellar structure with a dense (or cellular) top layer. Simultaneously, the effects of gap size on the open porosity and compressive strength of the porous ceramics were discussed. (C) 2015 Elsevier B.V. All rights reserved.