金属粉の検出性能と検出方法の概要
金属粉は細かい金属の粉です, 通常は金属の化学還元によって作られます, 機械的粉砕または噴霧化, 等. They have the characteristics of many metals, such as high electrical conductivity, high thermal conductivity, 耐食性, high temperature performance, 等. Metal powders can be used in a variety of applications, such as the preparation of metal materials in electronic devices, 自動車, 航空宇宙, 工事, 冶金, 等, and added to coatings, 塗料, インク, ゴム, 等, to increase their electrical conductivity, thermal conductivity, 耐食性, 等. 加えて, metal powder is also widely used in powder metallurgy, 3D printing, thermal spraying and other fields.
検出性能
The following is a table of common properties of metal powder to be detected and the detection methods:
| パフォーマンス | 説明 | 検出方法 |
|---|---|---|
| 粒度分布 | Size and distribution of metal powder particles | レーザー粒度分析装置, 顕微鏡 |
| 化学組成 | The content and proportion of each element in the metal powder | 蛍光X線分光法, ICP-MS, chemical analysis |
| 物質の純度 | Purity and impurity content of metal powder | ICPOES, thermogravimetric analysis, GC-MS |
| 密度の密度 | Density and porosity of metal powder | Buoyancy method, mercury injection method, 顕微鏡 |
| Magnetic properties | Magnetic properties of metal powders | Vibration sample magnetometer, hysteresis loop test |
| Properties of surface | Surface morphology, chemical reaction and chemical composition of metal powder | Scanning electron microscopy, X-ray photoelectron spectroscopy, chemical analysis |
金属粉の検出性能と検出方法の概要
思い出させてください: different metal powders may require different detection methods, the specific choice of which method needs to be determined according to the nature of the sample and the required detection accuracy.
具体的な検出方法
The following are detailed instructions on metal powder testing:
Particle size and particle size distribution: The particle size and particle size distribution were measured by laser particle size meter, dynamic light scatterer and other instruments.
Density: measured by hydrometer or gas specific gravity method.
Thermogravimetric analysis: Thermogravimetric analyzer (TGA) or differential thermal analyzer (DSC) can be used to test the thermal stability and thermal decomposition temperature of materials.
化学組成: Commonly used methods are X-ray fluorescence spectroscopy (XRF) and atomic absorption spectroscopy (AAS).
金属粉の検出性能と検出方法の概要
Surface properties: Commonly used surface analysis methods include scanning electron microscopy (SEM), transmission electron microscopy (TEM) and atomic force microscopy (AFM).
Magnetism: The magnetic properties of materials are tested through devices such as superconducting quantum interferometers (SQUID) and Hall effect meters.
Electrical conductivity: Instruments such as four-probe resistance testers can be used to test the electrical conductivity of materials.
Optical properties: It can be used to test the absorption and transmission spectrum of materials, as well as the optical properties such as fluorescence spectrum by UV-Vis spectrophotometer.
Mechanical properties: Commonly used mechanical properties testing methods include tensile, 圧縮, bending and other experiments, as well as materials testing machines and other instruments to test the mechanical properties of materials.
These test methods need to be selected according to the specific types and properties of metal powder, and combined with a variety of means for comprehensive analysis.