LIQUID PHASE MIGRATION IN EXTRUSION OF AQUEOUS ALUMINA PASTE FOR FREEZE-FORM EXTRUSION FABRICATION

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	LIQUID PHASE MIGRATION IN EXTRUSION OF AQUEOUS ALUMINA PASTE FOR FREEZE-FORM EXTRUSION FABRICATION
	Liu, Hongjun1 ; Leu, Ming C.2
	2009-03-20
发表期刊	INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN	0217-9792
卷号	23 期号:6-7 页码:1861-1866
摘要	Freeze-form Extrusion Fabrication (FEF) is an additive manufacturing technique that extrudes highly ceramic loaded aqueous paste along 3D contours for complex ceramic part fabrication. The phenomenon of liquid phase migration (LPM) in paste extrusion process will result in variation of liquid content in paste and consequently problems in processing and non-uniform properties of ceramic parts. It is necessary to understand the LPM phenomenon in FEF process. In this paper, the effect of liquid phase migration on extrusion of aqueous alumina paste was investigated for FEF process. The water content and extrusion force data were collected for a series of ram velocities. According to the extrusion force profiles, the extrusion process can be divided into four stages: compaction stage, transient stage, steady stage and dead zone stage. The results show that ram velocity is the key parameter for occurrence of liquid phase migration phenomenon and there is a velocity threshold above which the liquid phase migration will not happen.
关键词	Solid freeform fabrication liquid phase migration extrusion alumina paste
收录类别	SCI ; CPCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Applied ; Physics, Condensed Matter ; Physics, Mathematical
WOS记录号	WOS:000266134700177
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/35407
专题	国际教育学院材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Liu, Hongjun
作者单位	1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Gansu, Peoples R China 2.Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Liu, Hongjun,Leu, Ming C.. LIQUID PHASE MIGRATION IN EXTRUSION OF AQUEOUS ALUMINA PASTE FOR FREEZE-FORM EXTRUSION FABRICATION[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2009,23(6-7):1861-1866.
APA	Liu, Hongjun,&Leu, Ming C..(2009).LIQUID PHASE MIGRATION IN EXTRUSION OF AQUEOUS ALUMINA PASTE FOR FREEZE-FORM EXTRUSION FABRICATION.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,23(6-7),1861-1866.
MLA	Liu, Hongjun,et al."LIQUID PHASE MIGRATION IN EXTRUSION OF AQUEOUS ALUMINA PASTE FOR FREEZE-FORM EXTRUSION FABRICATION".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 23.6-7(2009):1861-1866.