The Anisotropy of Replicated Aluminum Foams / Furman Eugeny L.,Finkelstein Arcady B.,Cherny Maxim L. // ADVANCES IN MATERIALS SCIENCE AND ENGINEERING. - 2014. - V. , l. .

ISSN/EISSN:

1687-8434 / 1687-8442

Type:

Article

Abstract:

The replication casting process gives the open-cell aluminum foams that can be used in many industrial applications as well as in filtering technology. The essential requirement for filters is the uniformity of filtering degree which is defined by the minimal pore size. However the structure of replication castings is often inhomogeneous and the minimal pore radius is decreasing in the direction of melt infiltration. The objective of this investigation is to study the dynamics of melt impregnation of the porous medium by vacuum suction to identify the possibility of reducing the anisotropy. Theoretical data illustrate the processes at the boundary between melt and gas medium. The experiments were carried out using the replication aluminum samples produced according to commercial technology. It was found that the permeability coefficient varies throughout the height of castings. A method for estimation of pressure on the line of melt movement was proposed. The resistance of NaCl layer and circular vents of the mold causes the inhomogeneity of castings. Finally the ways of minimizing the anisotropy were offered.

Author keywords:

нет данных

DOI:

10.1155/2014/230767

Web of Science ID:

ISI:000336123700001

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	HINDAWI PUBLISHING CORPORATION
Address	410 PARK AVENUE, 15TH FLOOR, \#287 PMB, NEW YORK, NY 10022 USA
Language	English
Article-Number	230767
EISSN	1687-8442
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	fs@kompmat.ru
Number-of-Cited-References	9
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	29
Journal-ISO	Adv. Mater. Sci. Eng.
Doc-Delivery-Number	AH4UI