57 results about "Tantalum boride" patented technology

Disclosed is a probe needle material used for producing a probe needle which is used in contact with an inspection object to inspect electrical characteristics of the inspection object, comprising not less than 0.1% by volume but not more than 3.5% by volume of at least one compound selected from the group consisting of titanium boride, zirconium boride, hafnium boride, niobium boride, tantalum boride, chromium boride, titanium carbide, zirconium carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide, zirconium oxide, hafnium oxide and chromium oxide and the balance of a tungsten alloy mainly consisting of tungsten.

The invention relates to a carbon fiber enhanced hafnium boride-tantalum boride-carbon ceramic-based composite material and a preparation method thereof. The method comprises the following steps: (1)soaking carbon fiber prefabricated bodies into a tantalum hafnium precursor solution containing a tantalum hafnium precursor copolymer, a boron source precursor, a carbon source precursor and an organic solvent; then, sequentially curing and cracking the soaked carbon fiber prefabricated bodies; (2) repeating the steps (1) for many times to prepare the carbon fiber enhanced hafnium boride-tantalumboride-carbon ceramic-based composite material. The preparation method has the advantages that the process is simple; the addition of additives is not needed; the preparation temperature is low; thepreparation period is short; the industrial implementation is easy, and the like. The prepared carbon fiber enhanced hafnium boride-tantalum boride-carbon ceramic-based composite material has the advantages of high toughness, super-high-temperature resistance, excellent anti-oxidization performance, excellent ablation resistance performance and the like.

The invention discloses an environmentally friendly inflaming retarding type PVC cable material which is characterized by comprising the following raw materials in parts by weight: 34-38 parts of PVC, 5-9 parts of chlorcosane, 4-6 parts of epoxidized soybean oil, 5-8 parts of antimonous oxide, 12-15 parts of aluminium hydroxide, 4-5 parts of zinc borate, 12-14 parts of polyphenylenesulfide, 4-6 parts of poly(4-methyl-1-pentene),12-16 parts of bentonite, 3-4 parts of tantalum boride, 1-2 parts of 4-tert-Butylbenzoic acid, 10-15 parts of magnesium oxide, 5-8 parts of microcrystalline wax, 1-2 parts of an antioxygen 1010 and 6-8 parts of an addition agent. The environmentally friendly inflaming retarding type PVC cable material is high in tensile strength, has favorable heat resistance, ageing resistance and fire resistance, does not produce toxic gas in case of fire, and is low in production cost.

A refractory material withstanding high temperatures in an oxidizing medium contains at least hafnium boride and tantalum boride, hafnium and tantalum being present in the refractory material exclusively in compound form.

The invention belongs to the technical field of high bioactive film materials on the surfaces of biomedical implant materials, and concretely relates to a controllable production method of a boron-rich structure tantalum boride film. A new-generation medical implant material is adopted as a substrate, a metal tantalum target and a boron target are selected in a vacuum chamber, argon is used as a discharge gas, different radiofrequency powers are applied to the metal tantalum target and the boron target in the deposition process, and the phase structure of the film is regulated and controlled by controlling the working gas pressure and the substrate bias in order to finally obtain the tantalum boride coating having a dense and large-area boron-rich structure. The coating is nontoxic, hasgood biocompatibility, good osteoinductivity and high resistance to body fluid corrosion, and can effectively prevent the precipitation and diffusion of toxic ions in the medical implant material. Theproduction method of the coating has the advantages of simplicity, high efficiency, low cost and simple process, so the coating can be used as a surface modification coating for novel medical implantmaterials.

The invention discloses special packing for a wear-resistant and corrosion-resistant high-pressure rubber pipe. The special packing is prepared from the following raw materials in parts by weight: 3-5 parts of ferroferric oxide, 1-2 parts of tantalum boride, 7-9 parts of spodumene, 1-2 parts of tantalum diboride, 2-3 parts of p-tert-butylbenzoic acid, 8-10 parts of magnesium aluminate spinel, 3-4 parts of niobium boride, 3-5 parts of butylated hydroxytoluene, 2-5 parts of composite lead stabilizer, 1.3-1.8 parts of zinc stearate, 1-2 parts of calcium stearate, 50-55 parts of coal ash, a proper quantity of 4-6% hydrochloric acid, a proper quantity of water and 15-20 parts of auxiliary. Due to the addition of ferroferric oxide and the magnesium aluminate spinel in the packing, the wear resistance and heat resistance of the rubber pipe are improved; due to the addition of p-tert-butylbenzoic acid, the rubber pipe has favorable chemical corrosion resistance and soapy water resistance and is suitable for conveying chemicals; due to the adoption of the coal ash, the cost is reduced, and the reinforcing property of the packing is good; due to the adoption of the auxiliary, the dispersibility and reinforcing property of the packing can be improved, the strength and impact toughness of the high-pressure rubber pipe can be improved, and the high-pressure rubber pipe is not easy to bubble and deform.

The invention relates to a cable material, and particularly relates to an antiflaming shock resistant modified PVC cable sheath material. The material is prepared from the following raw materials in parts by weight: 24-28 parts of PVC resin, 21-23 parts of poly 1-butene, 12-14 parts of low density polyethylene, 14-15 parts of dioctyl adipate, 13-14 parts of epoxidized soybean oil, 23-25 parts of calcined kaolin, 6-9 parts of aluminum hydroxide, 4-5 parts of zinc borate, 2-3 parts of barium stearate, 2-3 parts of silane coupling agent KH550, 3-4 parts of sodium tripolyphosphate, 1-2 parts of tantalum boride, 1-2 parts of accelerator DM, 2-3 parts of zinc oxide, 4-5 parts of dimethyl phosphite, 1.3-1.5 parts of accelerator D, and 14-16 parts of additive. The insulating material combines advantages of the raw materials like PVC resin, poly 1-butene and the like, is flexible and impact resistant, has good chemical stability, is antiflaming, resists weather ageing cracking, is safe and reliable in use, can be widely used for preparing various cable sheath insulating materials, and has broad market demand prospect.

The invention discloses a perlite filter element and a preparation method thereof. The perlite filter element is characterized by being prepared from the following raw materials in parts by weight: 12-14 parts of perlite, 20-22 parts of bauxite, 4-6 parts of aluminium nitride, 4-6 parts of sodium hydrogen carbonate, 3-4 parts of medical stone powder, 2-3 parts of nano carbon, 5-6 parts of colleseed oil, 24-26 parts of clay, 3-4 parts of sodium tripolyphosphate, 4-6 parts of propylene glycol, 2-3 parts of ethylene glycol, 1-2 parts of tantalum boride, 2-3 parts of ammonium chloride, 30-35 parts of modified attapulgite clay and a proper amount of water. The stress in the filter element is uniform through regional sintering, and the phenomena of breakage and the like are avoided; bubble holes are uniform; the perlite filter element has excellent high-temperature resistance and corrosion resistance and has the outstanding advantages of high purification efficiency, high-temperature resistance, low pressure loss, corrosion resistance, long service life, capability of removing micro dust from air and the like.

The invention discloses a composite high-strength zirconia ceramic material and a preparation method thereof.The ceramic material comprises 20-40 parts of zirconium oxide, 5-12 parts of silicon carbide, 4-10 parts of tungsten carbide, 3-7 parts of boron nitride, 3-7 parts of zirconium boride, 2-7 parts of molybdenum boride, 2-6 parts of tungsten silicide, 2-6 parts of barium silicide, 2-4 parts of vanadium silicide and 3-6 parts of tantalum boride.The preparation method includes the following steps that 1, all ingredients are subjected to mechanical milling in a ball mill; 2, after ball milling is conducted, the ceramic material is subjected to high-temperature sintering in a sintering furnace, the temperature raising rate is 30-70 DDG C/min, the temperature is raised to 900-950 DEG C in the first place, the temperature is maintained unchanged for 2 hours, then the temperature is raised to 1250-1350 DEG C, the temperature is maintained unchanged for 3 hours and then lowered to the room temperature, and the composite high-strength zirconia ceramic material is prepared.

A method for preparing an ethyl alcohol dispersion tantalum boride silicon carbide-carbon fiber friction material is characterized in that carbonization is conducted on a graphited carbon fiber blanket with the density of 0.1-1.8 g/cm3, then ethyl alcohol dispersion tantalum boride filling, silicon carbide deposition and submerged siliconizing are conducted in sequence, and finally nitriding is conducted in the nitrogen atmosphere to generate the ethyl alcohol dispersion tantalum boride silicon carbide-carbon fiber friction material. The friction material is prepared through carburization, tantalum boride filling, silicon carbide deposition, submerged siliconizing and nitriding of the graphited carbon fiber blanket, has high strength, tenacity and friction performance, and is adaptable to various weather conditions.

The invention discloses a pipeline for an LNG gasification pressure regulating measuring skid-mount package. The pipeline comprises a steel pipe and an anti-corrosion layer arranged on the steel pipe.The anti-corrosion layer comprises the following components 30-35 parts by weight of polyoxymethylene resin, 15-17 parts by weight of polyurethane resin, 3-5 parts by weight of (methyl) acrylic 3, 4-epoxycyclohexyl ester, 6-8 parts by weight of styrene-isoprene copolymer, 0.5-2 parts by weight of N-(3-trialkoxysilyl) alkyl) ethylenediamine, 1-3 parts by weight of tungsten carbide, 2-4 parts by weight of scandium oxide, 1-3 parts by weight of vanadium boride, 2-4 parts by weight of nickel phosphate, 1-3 parts by weight of tantalum boride, 3-5 parts by weight of an antioxidant, and 60-80 partsby weight of methyl isobutyl ketone. The pipeline for the LNG gasification pressure regulating measuring skid-mount package has excellent ageing resistance, high temperature resistance, low temperature resistance and corrosion resistance.

The invention discloses a Ni-Zn soft magnetic ferrite material for transformer iron core. Raw materials of the Ni-Zn soft magnetic ferrite material contain main materials, auxiliary materials and modified wood pulp. The main materials contain, by molar weight, 40-50 parts of iron oxide, 30-40 parts of manganese oxide, 20-30 parts of zinc oxide and 15-25 parts of nickel oxide. With total mass of the main materials as the reference, the auxiliary materials contain 500-700 ppm of silica, 300-500 ppm of tantalum boride, 220-280 ppm of molybdenum trioxide, 300-360 ppm of cobalt oxide, 200-220 ppm of bismuth oxide, 300-380 ppm of vanadic anhydride, 240-360 ppm of tantalum oxide, 200-260 ppm of calcium oxide, 200-280 ppm of niobium oxide, 160-240 ppm of calcium carbonate, 200-300 ppm of manganese carbonate and 200-280 ppm of barium carbonate. Weight ratio of the main materials to the modified wood pulp is 100: 5-7.

The invention discloses a high-strength and wear-resisting boride-based cermet bearing and a production method thereof. The high-strength and wear-resisting boride-based cermet bearing is prepared from the following raw materials in parts by weight: 10 to 20 parts of titanium boride, 40 to 50 parts of tantalum boride, 2 to 8 parts of tin powder, 4 to 9 parts of iron powder, 13 to 20 parts of realgar powder, 10 to 20 parts of dickite powder, 10 to 15 parts of wolframite powder, 3 to 8 parts of graphene, 2 to 6 parts of ferric citrate, 10 to 15 parts of glass fibers and 11 to 15 parts of paraffin. Compared with a traditional cermet bearing, the high-strength and wear-resisting boride-based cermet bearing produced by the production method disclosed by the invention has the advantages of better strength, wear resistance and heat resistance; the bearing does not deform under the condition of high temperature, and is not easy to wear; in addition, a preparation technique is simple, the processing cost is low, parameters are easy to control, and the production process is safe and environmentally-friendly; and the high-strength and wear-resisting boride-based cermet bearing and the production method therefor are suitable for large-scale industrial production.

The invention provides a conductive ceramic and a method for preparing the conductive ceramic by using silicon carbide. The conductive ceramic comprises silicon carbide, tantalum diboride, yttrium oxide, titanium carbide and auxiliaries, is stable in performance, can meet various performance requirements of the conductive ceramic, and enriches market requirements. The method for preparing the conductive ceramic by using the silicon carbide is high in yield, and the production cost can be effectively reduced.

The invention discloses a preparing method of a synthetic-fat dispersion tantalum boride and boron carbide-carbon fiber friction material. The preparing method is characterized by including the steps that a graphitized carbon fiber blanket with the density of 0.1-1.8 g/cm<3> is subjected to boron carbide deposition after being subjected to carburization; synthetic-fat dispersion tantalum boride filling is carried out, then embedding boronizing is carried out, nitridation is carried out in nitrogen atmosphere, and the synthetic-fat dispersion tantalum boride and boron carbide-carbon fiber friction material is prepared. According to the preparing method, the friction material is prepared from the graphitized carbon fiber blanket through the steps of carburization, boron carbide deposition, tantalum boride filling, embedding boronizing, nitridation and the like; the prepared friction material is high in strength, tenacity and friction performance, and is a friction material adapting to various climate conditions.