Tantalum​ and tantalum alloy have the advantages of high melting point, good corrosion resistance, excellent high temperature strength, good machining performance, weldability, low plastic/brittle transition and excellent dynamic mechanical properties. It is widely used in electronics, weapons, chemical industry, aerospace industry and space nuclear power system, etc. It is an ideal structural material for working at 1600 ℃~1 800 ℃. Read More »

Light magnesium oxide​ is a very widely used product, and the production process of light magnesium oxide is very environmentally friendly, the more advanced domestic production process of light magnesium oxide is generally as follows: 1. Light magnesium oxide is calcined in a traditional rotary calcination kiln with magnesium hydroxide as the main raw material; Read More »

What are the main advantages and disadvantages of CVD? CVD uses one or more gases to chemically react on a heated solid substrate and to coat it with a solid film. Advantages: 1. Vacuum degree requirements are not high, even do not need vacuum, such as hot spray coating; 2. Rapid deposition rate, atmospheric CVD can reach 1μm/min; 3. Compared with PVD. Chemical composition or alloy coating is easier to achieve; Read More »

At present, both production and application of nanomaterials have attracted the attention of all countries. China's nanotechnology has made continuous progress, in nano-level SiO2, TiO2, Al2O3, ZnO2, Fe2O3 and other powder materials, has been successful industrial production or trial production, but the existing production process, high production cost is its fatal weakness, will affect the promotion and application of nanomaterials, so we should continue to improve. Read More »

High purity tungsten target​ is an important substrate for the transition of tungsten oxide film in semiconductor devices. Due to the high melting point of tungsten, tungsten targets are mainly prepared by powder metallurgy. The preparation method includes the purity of 99.999% or more, particle size of 3.2 4.2μm tungsten powder for uniform mixing, placed in the vacuum heat treatment furnace for pre-degassing, and then into hydrogen, continue heating degassing steps Read More »

Application of nanomaterials​ in various fields Nanomaterials have volume effect, surface effect, quantum size effect, macroscopic quantum tunneling effect and so on, which make them present characteristics that conventional materials do not have in electricity, magnetism, light and other aspects. Scientists and engineers have solved many technical problems by using the special properties of nanomaterials. Read More »

Based on silicon devices on the design and development has undergone many generations of the structure and process optimization and renewal, is gradually close to the limit of the silicon material, based on the potential to improve the performance of silicon devices become more and more small to gallium nitride, silicon carbide​ as a representative of the third generation of semiconductor have excellent physical properties of materials in order to further improve the performance of the power electronics device provides a bigger space. Read More »

The research and application of rare earth​ in functional materials mainly include rare earth nanomaterials, rare earth ultrafine nanomaterials, the application of rare earth in functional polymers, the study of rare earth based PVC thermal stabilizer and its smog-suppressing performance, and the preparation and performance of rare earth nanoalloy catalyst, which are mainly used in hydrogen storage materials and hydrogen energy application industry. Read More »

Magnetron sputtering coating is a new physical gas phase coating method, which is to use the electron gun system to emit electrons and focus on the coated material, so that the sputtering atoms follow the momentum conversion principle to fly away from the material with a high kinetic energy to the substrate deposition film. This plated material is called the sputtering target. Read More »

Zirconium boride​ is a common material in borides, and there are three kinds of zirconium boride in the boron-zirconium system, respectively, zirconium monoboride (ZrB), zirconium diboride (ZrB2) and zirconium twelve boride (ZrB12). However, due to the good stability of zirconium diboride in a wide temperature range, So the industrial production of zirconium boride is mostly zirconium diboride as the main component. Read More »

Boron carbide​, also known as Black Diamond, is an organic form. The molecular form IS B₄C. It is usually a grayish-black fine powder. It is one of the three hardest materials known (the others are diamond and cubic boron nitride) and is used in many industrial applications. It has a Mohs hardness of 9.3. So what are the properties and chemical properties of boron carbide? Read More »

What conditions do metal powders need to meet in order to meet the requirements of 3D printing materials? Ceramic inclusions will significantly reduce the performance of the final product, and these inclusions generally have a high melting point and are difficult to be sintered, so no ceramic inclusions must be in the powder. Read More »

LaB6 target material, melting point 2230℃, density 4.7g/cm3, resistivity 15μ ω ·cm, Vickers hardness 27.7 Gpa. TiB2 target, melting point 2980℃, density 4.5g/cm3, resistivity 9~15μ ω ·cm, Vickers hardness 33.5 Gpa. ZrB2 target material, melting point 3040℃, density 6.1g/cm3, resistivity 7-10 μ ω ·cm, Vickers hardness 22.5 Gpa. Read More »

Generally, the material and shape of the evaporation source should be considered. The general requirements of the evaporation source material​ are: The high melting point Because the evaporation temperature of the evaporating material (the temperature of the equilibrium vapor pressure of 1.3Pa) is mostly between 1000~2000℃, therefore, the melting point of the evaporating source material should be higher than this temperature. Read More »

Silicon nitride​ (Si3N4) is a kind of ceramic material with high melting point and high hardness and chemical inertness. Hot-pressed silicon nitride, in particular, is one of the hardest substances in the world. Silicon nitride ceramics have low thermal expansion coefficient and high thermal conductivity, so they have excellent thermal shock resistance. Read More »