Final answer:
During the blending or mixing of metallic powders, ingredients such as metal salts, iron(II) chloride, copper(II) sulfate, and chromium(III) oxide are commonly added to improve properties like melting point, ductility, conductivity, and corrosion resistance.
Step-by-step explanation:
When metallic powders such as copper, magnesium, zinc, and iron are blended or mixed in the manufacturing process, several ingredients may be added to achieve desired properties. Common additives include:
- Metal salts such as NaCl, CuCl2, CaCl2, KCl, etc., which can modify the alloy's characteristics, affect the melting point, or serve as fluxing agents to improve processing.
- Iron(II) chloride (ferrous chloride) or copper(II) sulfate (cupric sulfate) that may act as binders or to enhance material properties like ductility or conductivity.
- Chromium(III) oxide (chromic oxide), which can be used to introduce specific properties, such as corrosion resistance or particular mechanical traits.
These ingredients are chosen based on their chemical reactivity, the desired characteristics of the final product, and the compatibility with the primary metallic powders.