Structure and properties of ANOF Layers

Abstract

Oxide lityers I)ro(lucetl 1jy ANOF tcwhriiqnc show other structures and properties than such ones anorlizecl as irsrial. Sort>e characteristic mechanical, electrical and chemical pr(iperties are described. Their dependence on structure is discussed.Nltch tlern ANOF-Verfahrcn hergcstellte oxidische Schichten weisen gegeniiber konventionell anotlisch oxidierten Schichten andere Strukturen und Eigenschaften anf. Einige charakteristische niechanische, elektrische und chemische Eigenschaften werden beschrieben und ihre Strukturebhaiigigkeit diskutiert.

Kinetics and Properties of Micro Arc Oxidation Coatings Deposited on Commercial Al Alloys

“…The process for depositing the oxide coating on aluminum anode under an arc discharge condition was first reported by Markov and co-workers in the 1970s. [1] Subsequently, Snezhko et al [2,3] in the early 1980s, Kurze et al [4,5] in the mid 1980s, Gordienko et al [6,7] in the late 1980s, and Klapkiv et al [8] in the early 1990s contributed to the development of the MAO process. However, the MAO process gained worldwide recognition as an eco-friendly technology for depositing the tribologically superior ceramic coatings on aluminum and its alloys by the pioneering research contributions made by Yerokhin et al of Tula State University (Russia) in the 1990s.…”

Electrolytic plasma processing for plating coatings and treating metals and alloys

“…In a decade, the tech nique was improved and named microarc oxidation (which seems not exactly accurate) [7]. In the 1980s, possibilities provided by the use of surface discharges for plating oxides on various metals were considered in detail by the groups of Gordienko [8,9], Markov [10], and Kurze [11][12][13]. The first attempts to use the method in industry were made at that time [14,15].…”

Spark anodizing of β-Ti alloy for wear-resistant coating

“…Recently, spark anodizing, often also referred to as plasma electrolytic oxidation [7], anodic oxidation by spark discharge [8][9][10], anodic spark deposition [11] and micro-arc oxidation, has been attracted increased attention to improve surface properties, including corrosion, friction and biocompatibility, of titanium alloys [7,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Sparking proceeds during anodizing due to dielectric breakdown of the anodic oxide at high voltages.…”