Application of laser particle size analyzer in silicon powder

Laser Particle Size Analyzer (LPSA) plays an important role in the production and application of silicon powder, mainly in the following aspects:

1. Particle size control in silicon powder preparation

Real-time monitoring: During the mechanical pulverization, vapor deposition or sol-gel preparation of silicon powder, LPSA can monitor the particle size distribution online in real time to help optimize process parameters (such as pulverization time, temperature, gas flow rate, etc.).

Prevent over-grinding: For example, in the ball milling process, by dynamically analyzing the particle size change, the pulverization can be stopped in time to avoid excessive refinement leading to energy waste or degradation of material properties.

2. Quality Control and Standardization

Batch consistency: The particle size of silicon powder directly affects its application performance (such as fluidity and chemical reactivity). LPSA can quickly test large batches of samples to ensure that key parameters such as D10, D50, and D90 meet industry standards (for example, the D50 of photovoltaic-grade silicon powder must be controlled at the micron level).

High purity requirements: In the semiconductor industry, silicon powder needs to meet strict purity and narrow distribution requirements. The high resolution of LPSA can accurately identify abnormal particles (such as agglomerates or coarse particles).

3. Advantages compared with other testing methods

High efficiency: Compared with sieving (only applicable to particles >20 μm) and electron microscopy (time-consuming and requires small sample volumes), LPSA can complete particle detection within minutes.

Non-destructive: No physical contact with the sample is required, suitable for the detection of high-purity silicon powder to avoid contamination.

Wide particle size range: Can measure silicon powder particles from nanometer to millimeter (covering most industrial application scenarios).

Laser particle size analyzers play a key role in the production, quality control and R&D of silicon powder by providing fast and accurate particle size data, helping to achieve efficient optimization from raw materials to end products and meet the stringent needs of semiconductors, new energy, advanced manufacturing and other fields. This time, Winner2018 is recommended to test the particle size distribution of silicon powder for customers.

Measuring instrument information is as follows:

The video of measuring nanoparticles is as follows: