FeNi50 metal powder is a medium to high nickel iron-based alloy powder based on the iron nickel binary system with a nickel content of about 50 wt.%. Its typical characteristics include stable austenite structure, excellent thermal expansion matching ability, good toughness, and adjustable magnetic properties. In the material system, FeNi50 is between low nickel structural alloys and high nickel I...
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1. Intrinsic Color: Black Bulk (micron-scale) pure Fe3O4(Magnetite) appears deep black under visible light. Reason: Fe3O4 is a narrow-bandgap semiconductor (bandgap ≈0.1≈0.1 eV), which absorbs light across the entire visible spectrum with virtually no reflection, resulting in a pure black appearance. Industrial products: Larger-particle Fe3O4powders (micron-scale...
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