An annealing separator composition for a grain-oriented electrical steel sheet according to an exemplary embodiment of the present invention contains a composite metal oxide containing Mg and a metal M, wherein the metal M is one or more of Be, Ca, Ba, Sr, Sn, Mn, Fe, Co, Ni, Cu, and Zn.

The object of the method is to obtain rolling mill rolls with a coating of tungsten carbide or of the alloys thereof, wherein the coating is a single layer and is carried out by means of high velocity thermal spraying.

The object of the method is to obtain rolling mill rolls with a coating of tungsten carbide or of the alloys thereof, wherein the coating is a single layer and is carried out by means of high velocity thermal spraying.

A coated article including an article having a surface; an oxidation resistant bond coat layer deposited on the surface, the oxidation resistant bond coat layer comprising a metal silicide phase, a crystalline ceramic phase and an amorphous ceramic phase, wherein the metal silicide phase has an aspect ratio greater than 1:1 but less than 50:1.

A method for applying a metallic protective coating to a surface of a steel product, where another surface is to remain free from the metallic protective coating, may involve applying the metallic protective coating by hot dip coating in a hot dip coating bath. A preliminary coating may be applied to the surface that is to remain free from the metallic protective coating prior to the hot dip coating. The preliminary coating may include SiO.sub.2 and may prevent the metallic protective coating from adhering to the intended surface during hot dip coating. Thus one surface of a steel product may be provided with a metallic protective coating, and another surface of the steel product may be kept free from the protective coating, all with a minimum of cost and complexity and with optimized resource economics. Further, the preliminary coating, deposited from a gas phase to that surface of the steel product that is to be kept free from the metallic protective coating, may be a layer that includes amorphous silicon dioxide and has a layer thickness of 0.5-500 nm.”

An abradable powder composition is includes a metal component, a lubricant component, and a polymer component. A portion of the metal component is wrapped in the lubricant component to achieve high lubricity and abradability. The abradable powder composition can be used to form an abradable seal coating provided for use in a turbo machinery having a housing and a wheel having multiple blades. The housing houses the wheel which rotates therein. The seal coating is formed on the inner walls of housing adjacent where the wheel blades pass during their rotation. When the wheel is rotated such that, the blades contact the seal coating, it is abraded to form a close fit gap. The abradable seal coating preferably does not produce significant wear of the blade tips or transfer abradable material significantly to the blade tips upon being abraded.

A steel tubular pipe, which is threaded, sleeved, or integral, includes at least one first male threaded end, an inner surface, and a metal deposition layer on the inner surface and of thickness between 0.01 mm and 0.8 mm deposited on all or part of the inner surface of the pipe.

A steel tubular pipe, which is threaded, sleeved, or integral, includes at least one first male threaded end, an inner surface, and a metal deposition layer on the inner surface and of thickness between 0.01 mm and 0.8 mm deposited on all or part of the inner surface of the pipe.

A method includes applying a material coating on a surface of a machine component using a thermal spray, wherein the material coating is formed from a combination of a hardfacing material and aluminum-containing particles. The method also includes thermally treating the material coating to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material.

In one example, a method for forming an environmental barrier coating (EBC) and/or abradable coating on a substrate. The method may include depositing a coating on a ceramic or ceramic matrix composite (CMC) substrate to form an as-deposited coating, wherein the coating includes at least one of an environmental barrier coating (EBC) and an abradable coating. The method further comprises heat treating the as-deposited coating at or above a first temperature for a first period of time following the deposition of the as-deposited coating on the substrate, wherein heat treating the as-deposited coating includes heating the as-deposited coating to or above the first temperature at a controlled rate. The heat treatment may be configured to at least one of decrease the open pores and/or microcracks of the heat-treated coating compared to the as-deposited coating or control a grain size of the heat-treated coating.