A method of processing a workpiece includes forming a curved surface along an edge of the workpiece. The curved surface has a radius in a plane perpendicular to a length of the edge. The method also includes applying glass frit to the edge of the workpiece to encapsulate the edge. The method further includes firing the workpiece to fuse the glass frit and form a porcelain enamel coating bonded to the edge of the workpiece.

Applicants have disclosed a process for fusing a biocompatible glass to a metal substrate. In the preferred embodiment, the process comprises: grit blasting a metallic substrate (e.g., titanium) to remove a surface layer of the metal; after blasting, cleaning the abrasion residue off the surface layer; blending a solvent to use as a suspension agent; creating a suspension of glass-coating powders in the solvent solution; depositing the suspension onto the metallic substrate; drying thoroughly the suspension-coated metallic substrate; inserting the dried, coated substrate into a non-reactive chamber, purging the chamber with an inert gas, such as pure argon; and firing the metallic substrate, inside the furnace, in the inert gas. This process forms a robust fusion between the biocompatible glass/ceramic and titanium, according to preliminary test results. This process can be used for various medical and dental devices, including implants and onplants.

This invention is related to forming mixture with 0.2% (in weight) tragacanth powder which is an enamel coating material and application method, enabling the transformation of enamel to glass with high resistance and integration of enamel with the ground completely by acting as enamel powder and gum in the ratio of 99.8% and to obtaining a liquid solution by adding approximately 30 % water (in weight) to the formed mixture.

A heat shield film (100) that is formed on a wall surface of an aluminum-based member (W) includes: a matrix layer (10) diffusion-bonded to the wall surface (diffusion bonding layer (10'')), having a coefficient of linear expansion of 15x l0^-6/K to 25xl0^-6/K in a temperature range of ordinary temperature to 200°C and made of a porcelain enamel material; and hollow particles (20) dispersed in the matrix layer ( 10).

The invention pertains to a structure for use in a humid environment, comprising: - a primary structural element, which primary structural element is made of metal and is provided with a coating, which coating has a composition comprising zinc in a content of at least 40 wt% based on the weight of the coating, - a secondary structural element, which secondary structural element is made of metal and is provided with a coating, which coating is an alloy comprising aluminum and manganese, in which alloy the content of aluminum and manganese together is at least 90 wt % based on the weight of the coating, which alloy comprises more aluminum by weight than manganese, and wherein the primary structural element and the secondary structural element are in electrical contact with each other.