152results about How to "Wide range of ingredients" patented technology

The present invention relates to epitaxial, electrically conducting and mechanically robust, cubic nitride buffer layers deposited epitaxially on biaxially textured substrates such as metals and alloys. The invention comprises of a biaxially textured substrate with epitaxial layers of nitrides. The invention also discloses a method to form such epitaxial layers using a high rate deposition method as well as without the use of forming gases. The invention further comprises epitaxial layers of oxides on the biaxially textured nitride layers. In some embodiments the article further comprises electromagnetic devices which may be super conducting properties.

The invention discloses a method for producing a microcrystalline glass-ceramics composite board with novel microcrystalline phase, which is characterized in that the composite board takes diopside-containing pyroxene as microcrystalline phase and the production method thereof comprises the steps as follows: firstly, microcrystalline glass granules are prepared; according to the weight percentage, the microcrystalline glass consist of 50-65% of SiO2, 5-25% of Al2O3, 5-20% OF CaO, 2-10% of MgO, 1-8% of K2O+NaO, 0-1% of Li2O, 0-8% of BaO, 0-8% of B2O3 and the balance of nucleating agent, clarifier and corant with the content ranging from 0 to 20%; secondly, a ceramic palette board is prepared; according to the weight percentage, the ceramic palette board comprises 66-75% of SiO2, 13-23% of Al2O3, 0.3-3% of CaO+MgO, 3-8% of K2O+Na2O and the balance of 0-2% of auxiliary raw material; finally, the raw materials are distributed, sintered and post-processed, thus gaining the finished product of the microcrystalline glass-ceramics composite board. The method has the advantages of low production cost, high product quality, good appearance effect, and the like.

The invention belongs to the field of preparation of nano porous metal materials, and relates to a method for preparing nano porous silver based on an Ag-based amorphous alloy. By the method, the nano porous silver with the aperture of 20-100 nm is finally obtained by preparing a series of Ag-Mg-Ca amorphous alloy thin bands by taking the Ag-based amorphous alloy as a precursor by a solvent quick quenching method and then removing Mg and Ca elements by performing electric chemical alloy component corrosion removal by proper electrolyte. By the method, the structure and the size of the nano porous silver are adjusted and controlled by controlling the amorphous alloy components or electric chemical corrosion temperature; the operation technology is simple; and furthermore, the nano porous silver is extremely high in surface-enhancement raman scattering (SERS) performance and has a wide application prospect in the fields of environment friendliness, catalysis and biological sensors.

The invention discloses a neodymium iron boron magnet, a preparation method and a device applying the same, belonging to the field of magnetic materials. The magnet comprises the following components in percentage by weight according to the general formula: 27 to 35 percent of R representing one or two rare-earth elements except Gd, 0.55 to 2 percent of Gd, 0.5 to 3.5 percent of Co, 0.05 to 0.5 percent of M1 representing one transition metal element such as Cu, Al or Ge, 0 to 0.5 percent of M2 being one or two transition metal elements except Co and M1, 0.9 to 1.2 percent of B (namely boron) and the balance of Fe and unavoidable impurities. The neodymium iron boron magnet disclosed by the invention is compounded with Gd, Co, M1 and M2, thus the reversible magnetic induction temperature coefficient alpha and the coercive force temperature coefficient beta are better improved, the coercive force of the magnet is greatly improved while the magnetic energy product and residual magnetism are guaranteed not to reduce, the heavy rare earth element Gd is effectively utilized, and the performance is improved while the manufacturing cost is well saved.

The invention relates to the technical field of plantation and concretely relates to a selenium-enriched passion fruit plantation method. The method comprises the following steps of (1) selecting a piece of land, (2) performing transplanting, (3) managing water and fertilizer and (4) performing field management regularly. In the method, selenium-enriched mushrooms are matched with other farmyard manure to replace traditional selenium-enriched chemical fertilizers, so the output of the passion fruits is great and average selenium content of an individual passion fruit is high and average heavy metal is low; and therefore, the selenium-enriched passion fruit plantation method is suitable for promotion.

The invention discloses a high-entropy alloy with a banded precipitated phase. The high-entropy alloy consists of Co, Cr, Ni and Mo elements, wherein the atomic percent of Co is 25-35%, the atomic percent of Cr is 25-35%, the atomic percent of Ni is 25-35%, the atomic percent of Mo is 5-15%, and the sum of atomic percents of the components is 100%. The phase composition of the high-entropy alloy with the banded precipitated phase comprises a face-centered cubic phase and a sigma precipitated phase, wherein the sigma precipitated phase accounts for 40-60%. In the preparation method, the non-uniform precipitation of the Mo-rich phase is achieved through the combination of hot processing, solid solution processing, cold processing and annealing process, and the high-entropy alloy with the banded precipitated phase is obtained. The alloy can ensure excellent strength and toughness matching, and has application prospects in the fields of cutter materials, aerospace materials and the like.

The invention discloses a (FeaCobNic)xMyRz oxygen evolution catalytic material and an application to an anode oxygen evolution electrode. The atomic percent of the (FeaCobNic)xMyRz oxygen evolution catalytic material is that a plus b plus c is equal to 1, wherein a is larger than or equal to 0.5 and is less than or equal to 0.94, b is larger than or equal to 0.01 and is less than or equal to 0.9,c is larger than or equal to 0.5 and is less than or equal to 0.94, x is larger than or equal to 50 and is less than or equal to 95, y is larger than or equal to 5 and is less than or equal to 35, z is larger than or equal to 0.5 and is less than or equal to 15, M is one of or more than one of B, Si, C and P, and R is one of or more than one of Nb, Cr, Mn, Ru, Mo, Zr, Cu, Y and La. The (FeaCobNic)xMyRz oxygen evolution catalytic material is prepared into strips by adopting electric arc melting and induction melting so as to obtain alloy strips of which the thickness is 0.05 to 500 mum.(FeaCobNic)xMyRz is directly used as a working electrode to be applied to electrolyzed water, and the overpotential is 220 mV to 360 mV in the condition that the current density is 10 mA cm<-2>.

The invention provides a modified calcium oxide expansion agent for cement concrete. The modified calcium oxide expansion agent for the cement concrete has the specific surface area of 100-600m<2>/kg and is prepared from a degradable high polymer and calcium oxide expansion clinker. According to the modified calcium oxide expansion agent for the cement concrete, provided by the invention, the invalid hydration of calcium oxide at a plastic stage of concrete is reduced, the hardened expansion quantity is increased, and the shelf life of the product can be further prolonged; the expansion agent can be applied to the crack resisting and seepage prevention of a concrete structure and can be used for greatly improving the durability of the concrete.

The invention relates to a novel culture medium and production technique for fermenting and producing pulullan. The formula of the culture medium is as follows: sucrose is used as a carbon source, the concentration of the sucrose is 60-120g/L, urea is used as a nitrogen source, and the concentration of the urea is 2-4g/L; K2HPO4, MgSO4.7H2O, and FeSO4.7H2O are used as inorganic salts, the concentration of the NaCl is 2-4g/L, the concentration of the K2HPO4 is 3-10g/L, the concentration of the MgSO4.7H2O is 0.3-0.5g/L, the concentration of the FeSO4.7H2O is 25-100mg/L, and the pH ranges from 6 to 7. The culture medium has clear ingredients, the ingredients of the fermented product are simple, and the following extraction production cost can be lowered; and the culture medium is wide for ingredient source, easy to buy and lower in cost.

The invention belongs to the technical field of high-entropy oxide materials, and particularly relates to a plurality of single-phase spinel type high-entropy oxides as well as a preparation method and application thereof. According to the invention, expansion is carried out on the basis of an existing spinel-type (CoCrFeMnNi)3O4 high-entropy oxide material to prepare the single-phase spinel-typehigh-entropy oxide of a new system, the component range of the spinel-type high-entropy oxide is expanded, the application of the prepared single-phase spinel-type high-entropy oxide of the new systemin the field of electrochromism is discovered and proposed, and the application field of the single-phase spinel type high-entropy oxides are further expanded. According to the invention, the component range of the spinel type high-entropy oxides is expanded; single-phase spinel type high-entropy oxide powder materials prepared by a sol-gel combustion method are high in purity, small in particlesize and uniform in element distribution; a spin-coating method is adopted, so process is simple, and prepared single-phase spinel type high-entropy oxide film materials are good in uniformity; and meanwhile, the application of the single-phase spinel type high-entropy oxides as electrochromic materials is provided, so the application field of the single-phase spinel type high-entropy oxides are further expanded.

The invention discloses a metal-resin composite and a preparation method thereof. The metal is titanium or a titanium alloy; the composite comprises a metal substrate and a resin layer which is attached to at least partial surface of the metal substrate; pits are distributed in the surface of the metal substrate attached with the resin layer; part of resin in the resin layer downwards extends, the pits are filled with the resin, and content of an element oxygen in the surface layer of the metal substrate accounts for more than 1wt%. The preparation method comprises the following steps: soaking the metal substrate into an etching solution comprising at least one alkali metal hydroxide, and forming pits in the surface of the metal substrate; and injecting resin into the surface of the metal substrate subjected to surface treatment to form the resin layer. The binding force between the metal substrate and the resin layer in the metal-resin composite is high, so that the resin layer is not easily dropped from the surface of the metal substrate, and therefore, the metal-resin composite is suitable for being used an electronic product shell. The etching solution used by the preparation method is low in toxicity and is small in volatility, so that the operation safety is high, and the pollution to the environment is small.

The invention discloses a magnetic material with a magnetic field for driving martensite twin crystal rearrangement and a preparation method thereof. The material has ferromagnetism and a two-way shape memory effect, and is a novel magnetically controlled shape memory alloy capable of driving martensite twin crystal rearrangement to generate macro-strain by an outer magnetic field, wherein the chemical component is CoxNiyAlzGaj, x is less than or equal to 42 and greater than or equal to 28; y is less than or equal to 32 and greater than or equal to 25, z is less than or equal to 35 and greater than or equal to 23, j is less than or equal to 10 and greater than or equal to 0.5, x+y+z+j =100, and x, y, z and j represent the molar percentage content. Compared with the existing alloy, the magnetically controlled shape memory alloy CoxNiyAlzGaj disclosed by the invention has large magnetic strain, a wide martensite phase transformation temperature range and good mechanical property, and has important application to the field such as a high-power underwater sonar, a micro positioner, vibration and noise control, a linear motor, a microwave device, a robot and the like.

The invention discloses a preparation method of a flexible nano porous nickel/nickel oxide composite electrode plate. The method comprises the following steps: (1) preparing a Ni-Ti precursor amorphous alloy ribbon, selecting high-purity Ni and Ti metals according to the atomic percentage ratio of Ni to Ti being (35+x):(65-x), wherein x is 0 to 10, carrying out melting by an arc-melting furnace to prepare a Ni-Ti alloy ingot, removing a surface scale cinder of the Ni-Ti alloy ingot, and preparing the Ni-Ti amorphous alloy ribbon by vacuum melt-spinning equipment, so as to prepare the Ni-Ti amorphous alloy ribbon with the thickness of 25-30 microns; and (2) carrying out a free dealloying treatment on the Ni-Ti amorphous alloy ribbon obtained in the previous step in an acid etching solution at a room temperature for 40-100 minutes, and washing the obtained nano porous ribbon with deionized water, so as to obtain the nano porous nickel/nickel oxide composite electrode plate. The composite electrode material prepared by the method shows excellent flexibility and simultaneously has good electrochemical properties.

One Al-Ti-C intermediate alloy preparation method, involves a kind to use in the aluminum alloy production crystal grain thin Al-Ti-C intermediate alloy production method. Its characteristic lies in with the calcium carbide does carbon source, the production craft completely dissolves after the aluminum, melts the body fever to join the electricity stone powder hydrofluotitanic acid armor the mixture, elevates temperature to 950deg.C~~1000deg.C, guarantees the wet 10~~30 minute, after melt body surface liquid state dregs casting.The invention characteristic is the raw material unites is easy, alloy production craft simple, production cost low, produces the alloy thin medicinal preparation thin crystal grain with this craft is incubation period short, specially suits outside the stove is continuously thin.

The invention relates to a formula of an indoor air purifying agent and belongs to the technical field of chemical processing. The indoor air purifying agent is prepared by uniformly mixing the following components in parts by weight: 40-70 parts of modified zeolite, 15-35 parts of activated carbon, 2-8 parts of sodium percarbonate and 5-10 parts of dichlorobenzene, wherein modified zeolite is obtained by uniformly mixing inorganic acid in certain concentration and volume with a certain mass of zeolite and drying, and sodium percabonate is obtained by carrying out reaction on a certain mass of sodium carbonate with hydrogen peroxide in certain volume. The indoor air purifying agent has the advantages of available raw material components, low cost, good capability of adsorbing inorganic matters and organic matters and especially effective absorption of ammonia gas and hydrogen sulphide in the air, so that the effect of purifying the air is realized.