In near-neutral solutions, the effects of NH4HF2, H3PO4, phytic acid (IP6), and EDTA-ZnNa2 concentration on corrosion resistance Zn amount micro-arc oxidation (MAO) coatings were revealed by an orthogonal experiment. The influencing order four factors coating is > NH4HF2 IP6 while sequence ranked as H3PO4 IP6. fabricated Zn-containing exhibit excellent resistance, their icorr values are two ...

To impart electrical conductivity on magnesium alloy micro-arc oxidation coatings, a graphite/epoxy conductive layer was prepared the surface of ceramic in this work, focusing wear behavior and corrosion resistance coating. At graphite weight 80 wt%, square coating decreased to 217.6 kΩ/□, it exhibited good resistance. Combined with distribution particles change resistance, we determined that m...

This review proposes to carry out a state-of-the-art associated with micro-arc oxidation. Firstly, the different aspects of growth mechanisms oxides are detailed. Then, formation micro-arcs and case soft-spark treatment discussed. electrolytic reactions involved in layer construction outlined. We focused on influence aluminium alloys appearance coating its characteristics before considering ele...

Hydroxy acid, oxidation, bromine The oxidation of glycollic, lactic, a-hydroxybutyric, and 2-phenyllactic acids by aque­ ous bromine has been studied. The reaction is of first order with respect to the oxidant and the anion of the hydroxy acid respectively. The active oxidising species is molecular bromine. The oxidation of ci,a-dideuterioglycollic acid indicated a kinetic isotope effect, ^h /^...

Here, we present a bone implant system of phase-oriented titanium dioxide (TiO 2 ) fabricated by the micro-arc oxidation method (MAO) on ?-Ti to facilitate improved osseointegration. This (101) rutile-phase-dominant MAO TiO (R-TiO is biocompatible due its high surface roughness, bone-mimetic structure, and preferential crystalline orientation. Furthermore, R-TiO possesses active abundant hydrox...