7 results about "Zr element" patented technology

The application provides a method for determining the content of Zr metal ions in a high-purity volatile organic matrix environment by ICP-MS, comprising the following steps: (1) based on the volatile nature of the organic matrix, replacing the sampling system and debugging the instrument parameters; (2) acidifying the volatile organic matrix to be tested; (3) testing on the machine; (4) according to the generated standard curve, reading out the content of the metal ion Zr in the high-purity reagent IPA. The method directly and effectively improves the problem that the direct sampling ICP-MS cannot pull out the Zr element standard curve and thus cannot read out the content of Zr in IPA; meanwhile, the pretreatment method of the method is an acidification method, which is simple to operate and low in time cost; and the standard addition method can eliminate the matrix interference, realize the detection of the metal ion Zr under the high-purity matrix, and meet the production demand.

The application provides a copper-based alloy material and a preparation method and application thereof, and belongs to the technical field of copper-based alloy materials.The copper-based alloy material comprises Ag elements, Zr elements, Cu elements and inevitable impurity elements; the weight content of the Ag elements is 0.001-0.045%, the weight content of the Zr elements is 0.001-0.01%, the total weight content of the inevitable impurity elements is less than or equal to 0.001%, and the balance is the Cu elements.The application limits the content of the Ag elements, the Zr elements and the inevitable impurity elements in the copper-based alloy material, not only further improves the softening resistance of the copper-based alloy material, but also simultaneously makes the electric conductivity and the hardness of the copper-based alloy material in a better range, realizes the comprehensive improvement of the performance of the copper-based alloy material.In addition, the control of the content of the above elements in the copper-based alloy material also realizes the control of the cost of the copper-based alloy material, and ensures the maximization of the economic benefits of the copper-based alloy material.

This invention relates to a rare-earth permanent magnet material Sm2(Co,Fe,Cu,Zr). 17 The method for preparing the permanent magnet material, wherein the chemical formula of the permanent magnet material is Sm2Co. 17‑a‑b‑c Fe a Cu b Zr c Where 0.15≤a≤0.35, 0.05≤b≤0.15, 0.02≤c≤0.05, and a+b+c≤0.50; the permanent magnet material has a 2:17 rhombohedral crystal structure with space group R-3m and an average grain size of 3-8μm; the preparation method includes vacuum melting, homogenization treatment, powder preparation, magnetic field orientation forming, cold isostatic pressing, sintering, and graded aging treatment steps. This invention improves the coercivity and maximum energy product of the permanent magnet material and enhances its temperature stability by optimizing the Fe, Cu, and Zr element ratio and introducing a multi-stage heat treatment process.

The application belongs to the field of ceramic cutter material, and particularly relates to a dual solid solution microstructure composite Ti(C, N) based ceramic material and a preparation method. The ceramic material prepared by the application is prepared by adding ZrC, NbC and Mo2C as reinforcing phases by using discharge plasma sintering, with Ti(C, N) as a matrix. The addition of ZrC induces the formation of a Zr element-rich (Ti, Zr, Nb)(C, N) second solid solution phase; the dispersion distribution of the (Ti, Zr, Nb)(C, N) second solid solution phase at the intracrystalline and grain boundary can effectively pin the grain boundary, inhibit the abnormal grain growth in the sintering process, realize the leap from a single solid solution to a composite ceramic, and significantly improve the bending strength, hardness and wear resistance of the Ti(C, N) based ceramic material, which exhibits irreplaceable importance in the fields of cutter material and precision machining.

The application discloses a TC18 titanium alloy with good corrosion resistance and a preparation method thereof, and relates to the technical field of titanium alloy materials. The application aims at solving the problem of poor corrosion resistance of the existing as-cast TC18 titanium alloy. The titanium alloy comprises the following components in percentage by mass: Zr 2.0-6.0%, Al 4.5-6.5%, V 4.0-5.5%, Mo 4.0-5.5%, Cr 0.5-1.5%, Fe 0.5-1.5%, and the balance of Ti and inevitable impurities. The application adds Zr element, so that the Zr element forms a twin crystal in the titanium alloy, increases nucleation sites of a passivation film, generates a dense oxidation film mainly composed of ZrO2 and TiO2 on the surface of the alloy, and improves the corrosion resistance of the TC18 titanium alloy in a reducing acid and other corrosion environments. The application is used for the preparation of the titanium alloy.

The application provides a high-temperature water vapor oxidation resistant protective coating and a preparation method and application thereof, and belongs to the technical field of alloy coatings. The high-temperature water vapor oxidation resistant protective coating provided by the application comprises the following components in percentage of atoms: 8-35% of Al, 0.5-10% of Nb and / or Ta, 0.5-5% of RE and the balance of Cr. In the application, Cr is used as a matrix, Al is introduced, and a continuous, dense and crack-free Al2O3 oxidation film can be formed at high temperature, the thermodynamic stability of the oxidation film is improved, and the high-temperature oxidation resistance is improved. The introduced Nb element and Y element are enriched at the coating grain boundary and the coating-matrix interface, the Cr / Zr interdiffusion can be blocked, the diffusion of Zr elements into the Cr coating to form an oxygen diffusion channel is avoided, and the high-temperature oxidation resistance of the coating is further improved.

The application provides an energetic high-entropy alloy for a shroud, a preparation method and application thereof, and the high-entropy alloy contains, in atomic percentage, Ti: 25-60%; Zr: 10%-35%; Nb: 10%-35%; Ta: 0%-20%; Al: 1%-20%; and V: 1%-20%. The preparation method comprises the following steps: firstly, Ti element particles, Zr element particles, Ta element particles, Nb element particles, Al element particles and V element particles are proportioned according to atomic content proportioning; then, alloy smelting preparation is carried out in a vacuum environment; finally, the prepared alloy ingot is subjected to hot isostatic pressing treatment to obtain the high-entropy alloy. The alloy is of single-phase BCC structure, has high strength and good room-temperature tensile plasticity. Due to the design of active elements, the alloy has the characteristics of high activity and high sound speed, which makes the high-entropy alloy shroud have the effects of high penetration and large opening.