Effect of thermal cycling on the damping behavior in alumina borate whisker with and without Bi2O3 coating reinforced pure aluminum composites

作者: Gang Liu , Shawei Tang , Wenchao Ren , Jin Hu

DOI: 10.1016/J.MATDES.2014.03.034

关键词: Slip (materials science)Grain boundaryTemperature cyclingBoronWhiskersComposite materialComposite numberMaterials scienceWhiskerCoating

摘要: Abstract Alumina borate whiskers with and without Bi 2 O 3 coatings reinforced pure aluminum composites were fabricated by squeeze casting. The damping behavior of the was described. Samples had undergone thermal cycling during measurement. For Al 18 B 4 33 w/Al composite, two peaks are present either in heating or cooling process. composite whisker coatings, there also process, but three research results indicate that a distinct difference presents damping-temperature curves for coatings. mechanism explained through dislocation motion, interfacial grain boundary slip.

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