Metal tozunun tespit performansının ve tespit yönteminin özeti
Metal tozu ince bir metal tozudur, genellikle metalin kimyasal indirgenmesiyle yapılır, mekanik öğütme veya atomizasyon, vesaire. They have the characteristics of many metals, such as high electrical conductivity, high thermal conductivity, korozyon direnci, high temperature performance, vesaire. Metal powders can be used in a variety of applications, such as the preparation of metal materials in electronic devices, otomotiv, havacılık, yapı, metalurji, vesaire., and added to coatings, boyalar, mürekkepler, lastik, vesaire., to increase their electrical conductivity, termal iletkenlik, korozyon direnci, vesaire. Ek olarak, metal powder is also widely used in powder metallurgy, 3D printing, thermal spraying and other fields.
Tespit performansı
The following is a table of common properties of metal powder to be detected and the detection methods:
| Verim | Tanım | Tespit yöntemi |
|---|---|---|
| Partikül boyutu dağılımı | Size and distribution of metal powder particles | Lazer parçacık boyutu analizörü, mikroskop |
| Kimyasal bileşim | The content and proportion of each element in the metal powder | X-ray fluorescence spectroscopy, ICP-MS, kimyasal analiz |
| Purity of substance | Purity and impurity content of metal powder | ICPOES, thermogravimetric analysis, GC-MS |
| Density of density | Density and porosity of metal powder | Buoyancy method, mercury injection method, mikroskop |
| 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, kimyasal analiz |
Metal tozunun tespit performansının ve tespit yönteminin özeti
Size hatırlatıyoruz: 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.
Spesifik tespit yöntemi
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.
Yoğunluk: measured by hydrometer or gas specific gravity method.
Termogravimetrik analiz: Thermogravimetric analyzer (TGA) or differential thermal analyzer (DSC) can be used to test the thermal stability and thermal decomposition temperature of materials.
Kimyasal bileşim: Commonly used methods are X-ray fluorescence spectroscopy (XRF) and atomic absorption spectroscopy (AAS).
Metal tozunun tespit performansının ve tespit yönteminin özeti
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, sıkıştırma, 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.