NDLI: Removal of Double Oxide Film Defects by Ceramic Foam Filters

Content Provider	Springer Nature Link
Author	Ardekhani, Arash Raiszadeh, Ramin
Copyright Year	2011
Abstract	In this study, Weibull statistical and statistical image analyses of porosity were employed to determine the efficiency of ceramic foam filters for the removal of double oxide film (bifilm) defects from a pure Al melt. Using these efficiencies and the branch filter model, the average size of the inclusions present in the liquid was estimated, and assuming that most of the inclusions in the melt are in the form of double oxide films, the possible dimensions for these defects were calculated. The results showed that the foam filters can remove oxide defects from the melt and that the efficiency of this filtration depends on the pore size of the filter. The average dimension of the oxide film defects was calculated to be 13.8 × 13.8 μm with a maximum thickness of 1 μm, if they remained non-convoluted in the metal flow. If they became convoluted because of the turbulence of the liquid flow, then the dimensions of the flat defect before it became curled up in the flow were calculated to be between 37 × 37 × 1 and 370 × 370 × 0.01 μm.
Starting Page	1352
Ending Page	1362
Page Count	11
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	21
Issue Number	7
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2011-07-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	bifilm double oxide film defect foam filter melt quality Tribology, Corrosion and Coatings Engineering Design Characterization and Evaluation of Materials Quality Control, Reliability, Safety and Risk
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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