Title

Insight Into Reactions And Interface Between Boron Nitride Nanotube And Aluminum

Keywords

Aluminum; Boron Nitride Nanotube; Interface

Abstract

Nature and mechanism of interfacial reactions between boron nitride nanotubes (BNNTs) and aluminum matrix at high temperature (650 °C) are studied using high-resolution transmission electron microscopy (HRTEM). This study analyzes the feasibility of the use of BNNTs as reinforcement in aluminum matrix composites for structural application, for which interface plays a critical role. Thermodynamic comparison of aluminum (Al)-BNNT with analogous Al-carbon nanotube (Al-CNT) system reveals lesser amount of reaction in the former. Experimental observation also reveals thin (∼7 nm) reaction-product formation at Al-BNNT interface even after 120 min of exposure at 650 °C. The spatial distribution of the reaction-product species at the interface is governed by the competitive diffusion of N, Al, and B. Morphology of the reaction products are influenced by their orientation relationship with BNNT walls. A theoretical prediction on Al-BNNT interface in macroscale composite suggests the formation of strong bond between the matrix and reinforcement phase. © Materials Research Society 2012.

Publication Date

11-14-2012

Publication Title

Journal of Materials Research

Volume

27

Issue

21

Number of Pages

2760-2770

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1557/jmr.2012.294

Socpus ID

84868567389 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84868567389

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