The basic element of the design a power module is metallized ceramic substrate. In this work, formation metallization coatings by method thermal transfer pastes (Mo-Mn-Si + binder) for alumina and aluminum nitride ceramics was carried out. fixing coating on substrate performed firing at temperature 1320 °C. subsequent deposition copper layer out cold gas-dynamic spraying (CGDS) followed anneali...

The special environment conditions in high altitude areas leads to serious cracking and peeling of road hot-melt marking coatings. In order improve the durability paint, a durable paint was designed by modifying with toughening-agent, rheological agent, anti-aging agent. modification mechanism modified coating revealed through TG FTIR analysis. low-temperature anti cracking, adhesion, propertie...

A nickel-base superalloy drilling comparison test was carried out with a carbide drill of the Chinese brand YG10, which selected and coated TiN coating, AlTiN coating TiAlSiN coating. Analysis life, force, temperature, wear machined surface quality were out. It can be seen that both prolong tool life YG10 when GH4169. In contrast, TiAlSiN-coated has poor hardness is easy worn, not suitable for ...

Anti-Biofouling Coatings In article number 2201152, Robert Texidó, Pol Cabanach, Abdon Pena-Francesch, and colleagues use a coating strategy combining dopamine zwitterionic polymers to prevent bacteria from adhering soft flexible materials commonly used in medical devices. The coatings exhibit superhydrophilic anti-biofouling properties, leading >99% reduction bacterial adhesion. This bacteriop...

Abstract The article describes the influence of a solid lubricant such as graphite on coating-substrate adhesion, susceptibility to cracking during three-point bending tests and tribological properties cermet systems. Two types deposits Cr 3 C 2 -25(Ni20Cr) (Cr -25(Ni20Cr))-5(Ni25C), cold-sprayed Al 7075 alloy substrate, were analyzed. coatings showed homogeneous microstructure with evenly dist...

Background The drug-eluting stent is a standard approach for the treatment of coronary artery disease. Propylthiouracil (PTU), an antithyroid drug, has been proven to suppress neointimal formation after balloon injury. Materials and methods This study used a biodegradable polymer coating with PTU to test its effects on platelet function, re-endothelialization, and neointimal formation after v...

PURPOSE To demonstrate differences in human lens epithelial cell adhesion to different intraocular lens biomaterials in vitro and to determine whether these differences can be influenced by coating the intraocular lens surface with commercially available fibronectin. METHODS A prospective laboratory-based study comparing human lens epithelial cell adhesion to silicone (n=18), polymethylmethac...

Typical plasma sources, as used in optical coating, bombard the surfaces of the substrates with electrons and ionized gasses such as argon, oxygen, and nitrogen. The energy of the ions in electron volts and the ion current depend primarily on the source geometry, gas flow, pumping speed of the chamber, and the current provided by the power supplies to the ion source and electron source. Three c...

Ultrafine-grained pure titanium prepared by equal-channel angular pressing has favorable mechanical performance and does not contain alloy elements that are toxic to the human body. It has potential clinical value in applications such as cardiac valve prostheses, vascular stents, and hip prostheses. To overcome the material's inherent thrombogenicity, surface-coating modification is a crucial p...