摘要:
A flux for hot dip galvanization comprises from:null60 to 80 wt. % of zinc chloride (ZnCl2); 7 to 20 wt. % of ammonium chloride (NH4Cl); 2 to 20 wt. % of a fluidity modifying agent comprising at least one alkali or alkaline earth metal; 0.1 to 5 wt. % of a least one of the following compounds: NiCl2, CoCl2, MnCl2; and 0.1 to 1.5 wt. % of at least one of the following compounds: PbCl2, SnCl2, BiCl3, SbCl3.
摘要:
The present invention is directed to a brachytherapy device comprising a substrate comprising at least one radioactive coating layer formed thereon. The radioactive coating layer has a total radioactivity that varies in at least one dimension of the device. Methods of making radioactive coatings, such as electrochemical deposition, electroless deposition and sol-gel are also disclosed. Suitable substrates include medical devices, such as catheters, stents, brachytherapy devices and guidewires, or components thereof. The disclosed methods produce medical devices capable of generating asymmetric, or targeted, radiation fields that correspond to the morphology of a tumor. Methods of using these devices to treat cancer of the breast, brain, prostate, uterine, head and neck are also disclosed.
摘要:
Solder compositions, solder pastes and methods of manufacturing thereof having a solder material coated with a coating material by an immersion coating process or an electroless plating process. The solder composition and solder pastes are substantially lead-free and have melting temperatures approaching those of traditional tin-lead solders.
摘要:
The present invention relates to a transparent conductive layered structure having a transparent substrate and a transparent conductive layer and transparent coating layer formed in succession on this substrate, used in, for instance, the front panel of CRT, etc., display devices. The main components of said transparent conductive layer are noble metal microparticles with a mean particle diameter of 1 to 100 nm, wherein the microparticles are made from gold and/or platinum and silver and the gold and/or platinum content is within a range exceeding 50 wt % up to 95 wt %, and a binder matrix. Moreover, the main components of the coating liquid used to form a transparent conductive layer in the production of a transparent conductive layered structure are solvent and noble metal-coated silver microparticles with a mean particle diameter of 1 to 100 nm dispersed in this solvent, wherein the surface of the silver microparticles is coated with gold or platinum only or a compound of gold and platinum and the gold and/or platinum content is within a range exceeding 50 wt % up to 95 wt %.
摘要:
An aqueous alkaline non-cyanide zinc electroplating bath containing zinc ions for producing bright electrodeposits of zinc and a brightening agent comprising a polymeric quaternary amine and a reducing sugar, and a compound that forms a reducing sugar upon hydrolysis.
摘要:
A method and solution to activate and metallize the surface of a fluorocarbon material, suitable for circuit boards is disclosed. The surface of fluorocarbon materials is both hydrophobic and oleophobic, and highly inert and repellent to oils, dyes, adhesive and coatings. The method of the present invention makes such fluorocarbon materials wettable with metallizing solutions and chemicals, and also bondable with adhesives and coatings. The method comprises contacting said fluorocarbon surface with a mixture comprising a cyclic amide, a quaternary ammonium compound, a cationic or nonionic surfactant, a glycolether and an organic acid.
摘要:
A copper metal film having 105 to 109 micropores per square centimeter and a product plated with the film. The copper metal film is obtained by immersing a work in an electroless plating solution which contains copper ions, a completing agent, a hypophosphorus acid compound, a metal catalyst for initiating reduction, and a compound having an acetylenic bond.
摘要:
A method for chemical vapor deposition of copper metal thin film on a substrate includes heating a substrate onto which the copper metal thin film is to be deposited in a chemical vapor deposition chamber; vaporizing a precursor containing the copper metal, wherein the precursor is a compound of (null-methylstyrene)Cu(I)(hfac), where hfac is hexafluoroacetylacetonate, and (hfac)Cu(I)L, where L is an alkene; introducing the vaporized precursor into the chemical vapor deposition chamber adjacent the heated substrate; and condensing the vaporized precursor onto the substrate thereby depositing copper metal onto the substrate. A copper metal precursor for use in the chemical vapor deposition of a copper metal thin film is a compound of (null-methylstyrene)Cu(I)(hfac), where hfac is hexafluoroacetylacetonate, and (hfac)Cu(I)L, where L is an alkene taken from the group of alkenes consisting of 1-pentene, 1-hexene and trimethylvinylsilane.
摘要:
A composition capable of forming a metal ruthenium film and a ruthenium oxide film by a simple application/baking process, a process for forming a metal ruthenium film and a ruthenium oxide film from the composition, a metal ruthenium film and a ruthenium oxide film formed by the process, and electrodes formed of the films. A solution composition comprising a specific ruthenium complex. The coating film of this solution composition is heated in an atmosphere containing no oxygen or an atmosphere containing oxygen to form a metal ruthenium film or a ruthenium oxide film, respectively, and electrodes formed of the films.
摘要:
To improve the machining and processing, respectively, as well as the tribologic properties of ferrous coatings for the working surfaces of combustion engine cylinder blocks applied by a plasma spraying operation, a ferrous coating having a content of bound oxygen in the amount of between 1 to 4% by weight is suggested. Such coatings can be realized, for example, by adding an amount of 200 to 1000 normalized liters air per minute during the plasma spraying operation.