The correlation between structure, multifunctional properties and application of PVD MAX phase coatings. Part III. Multifunctional applications

Abstract

Part III of this overview presents a summary of the potential multifunctional applications of MAX phase materials. Coatings of these materials have been investigated for a range of uses, such as for: high-temperature electrical contacts, microelectronic layers, magnetic and optical materials, fuel holder protection in the nuclear industry, oxidation, corrosion and erosion protection, biocompatible material, thermal barriers, protective aerospace coatings and as armour in defence applications. What makes this material useful for many of these applications is its excellent mechanical properties, damage tolerance, self-healing, high-temperature melting point, and its outstanding oxidation, corrosion and abrasion resistance. Particular attention is given to an aircraft engine's design and the related materials challenges. A comparison is made to the currently utilized turbine surface coatings, as well as the motivation behind the usage of these new high performance MAX phase coatings, the nature of their protection/wear and other strengths/weaknesses.

Effect of Addition of Mo or V on the Structure and Cutting Performance of AlCrN-Based Coatings

“…During the past few decades, transitional metal nitride coatings such as TiN, TiCN, CrN, CrCN, and TiAlN [1] prepared by physical vapor deposition (PVD) have been extensively applied as a protective coatings to enhance the lifetime and machining performance of the machining tools. The CrAlN system has also been recognized as an improved coating system in aspect of their higher hardness, wear resistance, excellent thermal stability, and high temperature oxidation resistance [2]. In the fields of cutting, application of nitrides coatings as a protective layer has shown significant potential because of their higher hardness and wear resistance, excellent thermal stability and oxidation resistance.…”

Synthesis, Structure and Protective Properties of PVD Max Phase Coatings. A Review. Part I. Max Phase Coatings Deposition

“…The first comprehensive review on the deposition of coatings based on MAX phases, nucleation and growth mechanisms, and resulting properties was published by P. Eklund et al in 2010 [15]. Among the more recent reviews, it is worth mentioning the work of O. Berger in 2019, which focuses on analyzing the relationship between structure, properties, and applications of MAX phase coatings [16][17][18], as well as the review published by A. Biswas et al in 2021, which summarizes the progress in epitaxial growth of coatings [19].…”

“…The results of experimental and theoretical studies indicate a high potential for the use of coatings based on MAX phases [15][16][17][18][19]. Excellent mechanical properties, high electrical and thermal conductivity, damage resistance, self-healing ability, high thermal stability, and outstanding resistance to oxidation, corrosion, and abrasion make such coatings useful for many applications.…”

Synthesis, Structure, and Protective Properties of PVD Max Phase Coatings. A Review. Part Ii. Structure, Properties, Application Prospects

“…As a result, they have a high Young's modulus, damage resistance and self-healing ability, resistance to hightemperature oxidation and radiation, corrosion resistance and wear resistance, combined with electrical conductivity and good thermal properties [1][2][3][4]. Therefore, the synthesis of MAX phases in the form of coatings is of increasing interest for many applications [5][6][7][8][9].…”