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材料的化学组分（大量组分与微量组分）是影响材料性能及产品质量的主要因素之一。国产材料与国外同类材料的差距之一，就是材料的化学组分控制不同，特别是微量组分的分析方法尚属空白。如铝粉中氧含量的高低会影响粉末冶金的加工性能及物理性能，而国内还没有错粉中氧测定的
The chemical composition of the material (a large number of components and trace components) is one of the main factors that affect the material properties and product quality. One of the gaps between domestic materials and foreign similar materials is the different control of the chemical composition of the material, especially the analysis of trace components is still blank. Such as the level of oxygen in the aluminum powder will affect the processing performance and physical properties of powder metallurgy, but not the wrong powder in the determination of oxygen