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- W4295034834 abstract "One main issue for global warming are CO2-emissions from iron ore reduction during steelmaking. This study presents a new approach, to merge iron ore powder with a suitable reducing agent, here silicon powder. By laser melting of the powders, some of the generated grains are composed of homogeneous slag, O-Fe-Si about 60-30-10 at.-%. However, other grains indeed contain small domains with high iron content, 90-100 at.-%. Manifold appearances of the iron particles were identified, surrounded preferably by slag but also by accompanying domains of high Si-content. These appearances indicate how ore reduction took place, like spherical growth or irregular drop conglomeration. If the iron particles can be extracted as drops, direct 3D-printing from ore can be enabled, including tailored alloying of iron to steel. Such short value chain would not only be efficient but also aims to cause solely environment-friendly by-products, for example SiO2 instead of CO2." @default.
- W4295034834 created "2022-09-09" @default.
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- W4295034834 date "2022-01-01" @default.
- W4295034834 modified "2023-10-16" @default.
- W4295034834 title "Study of Si-domains enabling local reduction of laser-melted iron ore for iron-making during 3D-printing" @default.
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- W4295034834 doi "https://doi.org/10.1016/j.procir.2022.08.170" @default.
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