Work of adhesion of interfaces between M2AlC (M = Ti, V, Cr) MAX phases and α-Al2O3

Cees Kwakernaak*, Willem G. Sloof

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)
    14 Downloads (Pure)

    Abstract

    A fast and generic scheme is proposed to calculate the work of adhesion between two different materials or the cohesive energy between two crystal planes in a material. These calculations make use of the regular solution theory. This theory is extended to describe chemical interactions between atoms at either side of an interface. The so-called regular solution parameter is estimated from thermodynamic values tabulated or solution enthalpies obtained from a macroscopic atom model (MAM). Complex surface definitions at either side of an interface, both in composition and position of atoms, can be dealt with. The proposed scheme has been used to calculate the work of adhesion between M2AlC (M = Ti, V, Cr) type MAX phases and α-Al2O3. Next, the cohesive energy of the MAX-phases and alumina were determined. The cohesion of the M2AlC type MAX-phase is the weakest bond present in the M2AlC- α-Al2O3 systems.

    Original languageEnglish
    Pages (from-to)23172-23179
    JournalCeramics International
    Volume44
    Issue number18
    DOIs
    Publication statusPublished - 2018

    Bibliographical note

    Accepted Author Manuscript

    Keywords

    • Cohesive energy
    • Interfaces
    • MAX-phases
    • Surfaces
    • Work of adhesion
    • α-alumina

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