nanostructured alumina thin films were coated on stainless steel by sol-gel dip coating method. in order to prevent crack formation, al2o3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. effects of calcination temperature and withdrawal speed on structural properties were analyzed using xrd and sem. topography and thickness of coatings were analyzed by ...

Inorganic adhesives have several benefits over traditional joining methods for joining electrical steels used in magnetic cores of numerous industrial applications. As insulators with very high melting temperatures, the adhesives offer the possibility of increasing the efficiency of these machines. The aim of this project was to characterize sodium silicates as adhesives for such applications a...

Intrinsically conducting polymers (ICPs) have been considered for use in various applica‐ tions. One of the most important applications of these materials which are attracting consid‐ erable attention in the most recent times is in corrosion protection of oxidizable metals [1]. The effective use of conducting polymers for corrosion protection of metals can be carried out by different methods; l...

A dopant-free epitaxial technique is developed to achieve highly insulating buffers on semi-insulating GaN templates for nitride high electron mobility transistors by using the large polarization fields. The buffer leakage current density is reduced by several orders of magnitude, exhibiting outstanding insulating and breakdown properties. The simple polarizationand heterostructure-based soluti...

Abstract In recent years, as electronic devices such smartphones become more functional, compact, and lower cost, many semiconductor makers are studying the packages WLP (Wafer Level Package) having re-distribution layer (RDL).With miniaturization increase in number of pins a package, method conduction between chip an external electrode has been changed from wire connection to bump RDL. And app...

Nowadays there are various kinds of insulating glass available on the global market. The most popular type is the double sealed insulating glass unit (IGU). Polysulfide, polyurethane and silicone based sealants are the premium elastic sealants used as secondary seal. Provided they are formulated to the state-of-art these sealants meet all requirements on manufacture and service properties of we...

A hexagonal boron nitride (h-BN) coating of micron thickness is deposited directly on 316L stainless steel (SS316L) cathode through efficient, adjustable electrophoretic deposition (EPD) in a suspension system containing surfactant and ethanol. It based the mixing h-BN with polyethyleneimine (PEI) resulting positively charged ceramic powder making cathodic possible. The coatings SS316L could be...

the aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgelcoatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 n h2so4environment. the influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and20, on the coating quality and its corrosion prevention performance was investigated. differentialtherma...