Influence of heat treatment modes on the performance characteristics of resistive cermet coatings

Dielectric and resistive coatings based on glass ceramics with nickel boride additives have been synthesized. It was found that the microstructure of the resistive coating consists of a large number of phases. X-ray fluorescence analysis revealed the presence of Ni and Cr borides in the structure of the resistive layer. It was found that the change in the structure and specific surface resistance of resistive pastes practically does not affect the temperature coefficient of resistance of the synthesized resistive tracks.

Оцінка міцності вкритої шаруватим покриттям ділянки штока бурового насоса з урахуванням позаштатних напружень

The stressed-deformed state of the double-coated rod part of a bucket pump is researched. The coating has a steel base and some aluminum sputtering; the part of upper aluminum layer gets affected by microarc oxidation then. A non-homogeneous beam model, which has a multiple cross section and the varying parameters of elasticity and strength, is studied. Primarily, the model is kept within normal rod load; secondarily, it is put to the emergency, caused by the wearing of crosshead and frame rails friction couple.

Self-cured polymers from non-drying oil

Pongamia glabra seed oil (PGSO) – a non-edible, non-drying oil; a sustainable resource has found application as alkyds, epoxies and polyesteramides in paints and coatings. Generally, PGSO based polymeric coatings are obtained by curing at elevated temperature. Efforts have been made to cure PGSO at room temperature by simple route modification.

Synthesis and Characterization of Acrylated Epoxidized Soybean Oil for UV-Cured Coatings

This paper investigates the curing of biodegradable polymer films which were synthesized from soybean oil through the ultraviolet radiation and their stability against thermal degradation. In this study the epoxidation of soybean oil has been carried out via peracetic method. Further, an epoxy acrylate resin was synthesized from the epoxidized soybean oil (ESO) by using acrylic acid monomer. Triethylamine (TEA) and hydroquinone were used as a catalyst and inhibitor respectively.