Overview of nano bismuth powder
The nano bismuth powder is black, with no other colors mixed, spherical, and no obvious agglomeration.Nano-bismuth powder is synthesized by a solvothermal reduction method,which is based on the chemical reduction of Bi3+ using ethylene glycol as a solvent and reducing agent.Bismuth-based nanoparticles are grown from a dispersion solution of bismuth salt.Nano-bismuth particles It is a non-ferrous metal powder with a light gray appearance.It has a wide range of uses,mainly for the preparation of bismuth products,bismuth alloys and bismuth compounds. Due to its special properties, nano-bismuth powder has broad application prospects in metallurgical additives, lubricant additives, catalysts, medicines, and semiconductor raw materials.
Application of the nano bismuth
1. Electrical materials: Bismuth is an environmentally friendly brittle metal with high resistivity and strong diamagnetic properties, and can be used in the fields of semiconductor raw materials and high-temperature superconducting materials;
2. Lubricating oil additives: Nano-sized bismuth powder has good lubricating properties, and has a synergistic effect with the active element sulfur of commonly used lubricating oil additives, which is expected to replace lead and be used as a green lubricating oil additive;
3. Magnetic materials: Bismuth nanomaterials have magnetoresistance and thermoelectric effects, and may become magnetic induction materials and thermoelectric conversion materials with production and development value, and have a wide range of application values.
4. Metallurgical industry: Micro-nano bismuth powder, with small particle size, high purity, high sphericity, and low melting point. It can be used in alloy materials at present to refine the crystal structure of alloy materials, which improves the mechanical properties of alloy materials and reduces the alloy material Sintering temperature.
Storage conditions of nano bismuth powder
Humid environment will affect the dispersion performance and use effect of bismuth nanoparticles. Therefore, nano bismuth powder should be sealed in a vacuum package and stored in a cool and dry room, and bismuth nanoparticles should not be exposed to the air.
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