Corrosion-resistant oxide

Aluminum containers are recommended for many appHcations because of the very hard, corrosion-resistant oxide coating. They are deficient in only one respect once the protective skin has been penetrated, aluminum corrosion accelerates. 

The fluid is formulated from a premium mineral od-base stock that is blended with the required additive to provide antiwear, mst and corrosion resistance, oxidation stabdity, and resistance to bacteria or fungus. The formulated base stock is then emulsified with ca 40% water by volume to the desired viscosity. Unlike od-in-water emulsions the viscosity of this type of fluid is dependent on both the water content, the viscosity of the od, and the type of emulsifier utilized. If the water content of the invert emulsion decreases as a result of evaporation, the viscosity decreases likewise, an increase in water content causes an increase in the apparent viscosity of the invert emulsion at water contents near 50% by volume the fluid may become a viscous gel. A hydrauHc system using a water-in-od emulsion should be kept above the freezing point of water if the water phase does not contain an antifreeze. Even if freezing does not occur at low temperatures, the emulsion may thicken, or break apart with subsequent dysfunction of the hydrauHc system. 

Anodizing—the formation of a hard, corrosion-resistant oxide film on metals via anodic oxidation of the metal in an electrolytic solution. 

Electrode corrosion is the critical problem associated with the use of metal hydride anodes in batteries. The extent of corrosion is essentially determined by two factors alloy expansion and contraction in the charge-discharge cycle, and chemical surface passivation by the formation of corrosion—resistant oxides or hydroxides. 

PROP A bright, white, soft, ductile metal sltly radioactive. Corrosion resistant (oxide film). Resistant to fused alkalies, attacked by hot concentrated mineral acids. Bp 3380°, d 6.11 18.7°, mp 1917°. Insol in water. CONSENSUS REPORTS Reported in EPA TSCA Inventory. 

Thin metalhc fihns play an important role in diverse fields of applications, with special emphasis on micro- and nanoelectronics for which the metals Al, Cu, Ag, Au, Ti and W are essential Additional fields of commercial interests are electrodes as well as reflective, corrosion-resistant, oxidation-resistant and abrasion-resistant coatings . Noble metals (periods 5 and 6 of groups 8-11 of the periodic table of the elements) are of special interest due to their manifold application in heterogeneous catalysis. Other metals used in specialized industrial applications or as components of more complex materials such as metal alloys are Ni, Pd, Pt, Ag and Au. For example, FePt-based nanostructured materials are excellent candidates for future high-density magnetic recording media . ... 

Alrok process. The immersion of aluminum-base metals in a hot solution of alkali carbonate and chromate in order to form a corrosion-resistant oxide film on the surface. 

Coating Corrosion Resistance Oxidation Resistance Abrasion Resistance... 

Aluminum is a good conductor of both heat and electricity and it is easy to weld its tensile strength, light weight, and corrosion-resistant oxide coat makes it applicable to a wide variety of industrial and household uses, e.g., in packing materials, several types of containers, kitchen utensils, automobile bodies and components, airplanes, and building panels. 

The passivity of stainless steel is the result of the presence of a corrosion-resistant oxide film on the surface. In most material environments, it will remain in the passive state and tend to be cathodic to ordinary iron or steel. When chloride concentrations are high, such as in seawater or in reducing... 

The passivity of stainless steels is attributed to either the presence of a corrosion-resistant oxide film or an oxygen-caused polarizing effect. 

Electrode corrosion is the critical problem associated with the use of MH anodes in batteries. The extent of corrosion is essentially determined by two factors alloy expansion and contraction in the charge-discharge cycle and chemical surface passivation via the formation of corrosion resistant oxides or hydroxides. Both factors are sensitive to alloy composition, which can be adjusted to produce electrodes having an acceptable cycle life. In AB5 alloys the effects of Ce, Co, Mn, and Al upon cycle life in commercial type AB5 electrodes are correlated with lattice expansion and charge capacity. Ce was shown to inhibit corrosion even though lattice expansion increases. Co and Al also inhibit corrosion. XAS results indicate that Ce and Co inhibit corrosion via surface passivation. 

Corrosion resistance Oxidation-resistant materials Diborides, SiC... 

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