There are a number of ways to improve the corrosion and abrasion resistance of metals, including alloying, anodizing, nitriding and application of protective thin films. Alloying involves generating a binary phase diagram to determine the optimum composition and temperature dependence. For example, copper alloys known as “bronzes” offer high strength, abrasion resistance and high temperature co...

The evaluation of half-cell potential measurements in reinforced concrete (RC) members can be a key issue for civil engineers. primary reason this is that the interpretation based on available standards provides information related only to possibility corrosion concrete, but it does not provide clear perception influence capacity RC members. objective study two-fold: (1) explore level flexural ...

A heat resisting 50Cr-50Ni niobium-containing casting alloy, particularly developed for petrochemical plants was studied. The alloy combines high temperature strength with fuel ash corrosion resistance. However, during service, the exposure to high temperatures gives rise to precipitation of embrittling phases, strongly depleoting the material ductility. Therefore, studies on the thermal aging ...

Packaging of pharmaceuticals is a critical process. It is an economical means of providing protection, presentation, information, identiÞ cation, containment, administration, shelf-life and convenience for a product during carriage, storage, display and ultimate total use, paying due attention to any legal and environmental factors1. Plastics are a wide group of solid composite materials, which...

Until recently, works on the microscopic anatomy of the human intestinal villus had been hampered by lack of in vivo observations, and were based on early corrosion cast techniques before the advent of scanning electron microscopy to correctly identify the nature of the vessels seen. On review, a large number of human anatomy and histology texts carry a possibly erroneous message, as is the sam...

Mg alloys with high Al contents have superior corrosion resistance in aqueous environments, but poor cytocompatibility compared to that of pure Mg. We have silanized the cast AZ91 alloy to improve its cytocompatibility using five different silanes: ethyltriethoxysilane (S1), 3-aminopropyltriethoxysilane (S2), 3-isocyanatopyltriethoxysilane (S3), phenyltriethoxysilane (S4) and octadecyltriethoxy...

The use of a single metal for all restorations would be necessary because it protects against metal corrosion caused by the contact of different metals. For this "one-metal rehabilitation" concept, non-alloyed commercially pure (CP) titanium should be used for all restorations. Titanium frameworks have been cast and used for the long term without catastrophic failure, whereas they have been fab...