{"title":"Effect of Matrix Alloying and Reinforcement Coating on Porosity Nucleation in Metal-Matrix Composites","authors":"O. Ilegbusi, Jijin Yang","doi":"10.1115/imece1999-1250","DOIUrl":null,"url":null,"abstract":"\n The mechanism of porosity nucleation in pressure infiltration casting of metal matrix composites is investigated. Five interfacial configurations are considered for a variety of matrix/reinforcement systems. Interfaces with negative curvature such as cavity are found to be potential sites for porosity formation. The Al/Al2O3 system is most susceptible to porosity nucleation for the systems considered. Appropriate matrix alloying such as Mg in Al/Al2O3 system, and Mg and Cu in Al/SiC system and reinforcement coating such as Cu coating on SiC, could be effective for suppressing porosity formation.","PeriodicalId":410594,"journal":{"name":"The Science, Automation, and Control of Material Processes Involving Coupled Transport and Rheology Changes","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Science, Automation, and Control of Material Processes Involving Coupled Transport and Rheology Changes","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/imece1999-1250","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The mechanism of porosity nucleation in pressure infiltration casting of metal matrix composites is investigated. Five interfacial configurations are considered for a variety of matrix/reinforcement systems. Interfaces with negative curvature such as cavity are found to be potential sites for porosity formation. The Al/Al2O3 system is most susceptible to porosity nucleation for the systems considered. Appropriate matrix alloying such as Mg in Al/Al2O3 system, and Mg and Cu in Al/SiC system and reinforcement coating such as Cu coating on SiC, could be effective for suppressing porosity formation.
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