Study on Interface Reaction of BN-Al Composite Materials-ChemRxiv.pdf

03 February 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Ceramic-metal composite materials prepared by the metal infiltration process have become the topic of intense research. The interface reaction between ceramic and metal has an important impact on the mechanical properties of composite materials. This article, for the first time, studies the interface reaction between BN and Al. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were both employed to study interface reaction. Studies have shown that there is an intermediate transition interface between metal and ceramic. The interface reaction between Al and BN produces AlN, and there is no close connection among AlN particles. The grain size of AlN is about 1~2μm. The rate order is: Al element > B element > N element.


Metal infiltration
Interface reaction
Composite material


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