Book chapter
The Mn+1AXn Phases: The Precursors for MXenes
2D Metal Carbides and Nitrides (MXenes), pp 15-35
31 Oct 2019
Abstract
This chapter gives an overview of the class of layered, machinable, Mn+1AXn or MAX, phases (where M = early transition metal; A = A-group element, e.g., Al or Si; and X = C or N) precursor to MXene. These materials exhibit an unusual combination of metallic and ceramic properties: good electrical and thermal conductivity, machinability, and resistance to thermal shock. Some are also quite oxidation and creep resistant and plastic at high temperatures. These remarkable properties originate from their layered structure and the mixed metallic-covalent nature of the strong M-X bonds together with M-A bonds that are relatively weak. They are also the common precursors for the class of 2D materials known as MXenes, which are typically formed by selectively etching, mostly Al, from the MAX phases. Within a couple of years of the first report, MXenes have established themselves as a fascinating class of 2D materials with remarkable possibilities for composition variations and property tuning.
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19 citations in Scopus
Details
- Title
- The Mn+1AXn Phases: The Precursors for MXenes
- Creators
- Michel W. Barsoum - Drexel UniversityPer Eklund - Linköping University
- Publication Details
- 2D Metal Carbides and Nitrides (MXenes), pp 15-35
- Publisher
- Springer International Publishing; Cham
- Number of pages
- 21
- Resource Type
- Book chapter
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Scopus ID
- 2-s2.0-85085681984
- Other Identifier
- 991019173907804721