8 results about "Iron boride" patented technology

This invention relates to a coating alloy, based on Iron Boride (Fe2B), a powder developed for bonding the surfaces of steels. Coatings made with the powder of this invention, using methods such as fusion or thermal spraying, provide an increase in surface hardness, wear resistance, and corrosion resistance of metallic materials, especially steels, and therefore represent a significant alternative to bonding through thermochemical methods. The alloy powder developed in this invention essentially contains iron (Fe) and boron (B) elements, with a boron (B) content between 7.1 % and 10% by weight.

The present invention belongs to the field of wastewater treatment, and provides a method for efficiently catalyzing peracetic acid with an iron boride-based material to treat pollutants, and the operation is as follows: micron-sized zero-valent iron boride and peracetic acid are added to the wastewater containing organic pollutants, and the wastewater is treated under stirring conditions; during the wastewater treatment process, the micron-sized zero-valent iron boride catalytically activates peracetic acid to generate hydroxyl radicals, organic radicals CH<subgt;3< / subgt;C(O)O· and CH<subgt;3< / subgt> C(O)OO· to degrade the organic pollutants in the wastewater; after the treatment of a batch of wastewater is completed, the micron-sized zero-valent iron boride is recovered for the treatment of the next batch of wastewater; the micron-sized zero-valent iron boride is obtained by fully ball-milling a boron precursor and micron-sized zero-valent iron, and the boron precursor is at least one of boron oxide and boric acid. The present invention enriches the types of iron-based materials that can efficiently catalytically activate PAA to generate ROS to degrade pollutants, can improve the recyclability of iron-based materials and reduce the wastewater treatment cost.

A method for producing a casting from a copper alloy comprising the following steps: a. Melting a copper alloy with the following composition [in wt.%]: Cu 70.0 to 97.0%, Si 2.0 to 4.5%, B 0.002 to 0.03%, Fe 0.01 to 1.0%, optionally up to 2.0% Sn, optionally up to 0.4% Ni, optionally up to 0.2% P, optionally up to 0.25% Pb, optionally up to 0.15% As or Sb, Rest Zn and unavoidable impurities, where the ratio of boron content to the sum of iron and nickel content is at least 0.025 and at most 0.12 b. Casting an ingot, c. Melting the ingot, d. Casting the casting, whereby iron borides and / or iron-nickel mixed borides are formed in the alloy of the casting.

A magnet includes a three-dimensional structure with nanoscale features, where the three-dimensional structure has a near net shape corresponding to a predefined shape.

The application discloses a linear iron boride cathode catalyst for a lithium-sulfur battery. The catalyst is prepared based on a molten salt method of a double salt system, has a high length-diameter ratio and a uniform size (about 1 microns in diameter), and has excellent intrinsic conductivity, which provides fast electron supply for electrochemical reaction of sulfur, and meanwhile, local limited chemical polarity between iron and boron provides abundant adsorption and catalytic sites for intermediate product lithium polysulfide, effectively inhibits a shuttle effect, improves sulfur electro-conversion reaction kinetics, and thus good lithium-sulfur battery performance is obtained.

This invention discloses a nitrogen-carbon-containing aluminum iron boride composite material, its preparation method and application. The nitrogen-carbon-containing aluminum iron boride composite material has the characteristics of high catalytic efficiency, low leaching, easy recovery and high stability, and has considerable application potential in activated persulfate advanced oxidation systems.

Corrosion resistance brake rotors, vehicle with such brake rotors, and methods for forming corrosion resistant products are provided. A method includes boronizing a surface of a ferrous metal component to form an iron boride layer on the surface; and steam treating the ferrous metal component to form an iron oxide layer on the iron boride layer.

The present application belongs to the technical field of energy storage, and provides a lithium-replenishing agent. The lithium-replenishing agent comprises lithium phosphite and a coating layer that coats the surface of the lithium phosphite, wherein the material of the coating layer comprises iron boride. The present application is beneficial for solving the problems of relatively poor safety and stability, high costs, the generation of residues during lithium replenishing, etc., of lithium-replenishing materials in the related art.