금속분말의 검출성능 및 검출방법 요약
금속분말은 미세한 금속분말입니다., 일반적으로 금속을 화학적으로 환원하여 만들어짐, 기계적 분쇄 또는 분무, 등. They have the characteristics of many metals, such as high electrical conductivity, high thermal conductivity, 내식성, high temperature performance, 등. Metal powders can be used in a variety of applications, such as the preparation of metal materials in electronic devices, 자동차, 항공우주, 건설, 야금, 등., and added to coatings, 그림 물감, 잉크, 고무, 등., to increase their electrical conductivity, thermal conductivity, 내식성, 등. 게다가, metal powder is also widely used in powder metallurgy, 3D printing, thermal spraying and other fields.
탐지 성능
The following is a table of common properties of metal powder to be detected and the detection methods:
| 성능 | 설명 | 검출 방법 |
|---|---|---|
| 입자 크기 분포 | Size and distribution of metal powder particles | 레이저 입자 크기 분석기, 현미경 |
| 화학적 구성 요소 | The content and proportion of each element in the metal powder | X선 형광 분광법, ICP-MS, 화학 분석 |
| Purity of substance | Purity and impurity content of metal powder | ICPOES, thermogravimetric analysis, GC-MS |
| 밀도의 밀도 | Density and porosity of metal powder | Buoyancy method, mercury injection method, 현미경 |
| 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, 화학 분석 |
금속분말의 검출성능 및 검출방법 요약
우리는 당신에게 상기시켜줍니다: 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.
특정 검출 방법
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.
밀도: 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.
화학적 구성 요소: Commonly used methods are X-ray fluorescence spectroscopy (XRF) and atomic absorption spectroscopy (AAS).
금속분말의 검출성능 및 검출방법 요약
표면 특성: 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.
전기 전도성: Instruments such as four-probe resistance testers can be used to test the electrical conductivity of materials.
광학적 특성: 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, 압축, 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.