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Composite powder with iron-based particles coated with graphene material

A composite powder, graphene-based technology, applied in the direction of graphene, additive processing, carbon compounds, etc., can solve problems such as affecting the properties of stainless steel, and achieve the effect of reducing oxidation, improving fluidity and fractal surface, and improving powder processing

Pending Publication Date: 2022-04-29
GRAPHMATECH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, carbon content can significantly affect stainless steel properties, and even slight changes can be problematic

Method used

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  • Composite powder with iron-based particles coated with graphene material
  • Composite powder with iron-based particles coated with graphene material
  • Composite powder with iron-based particles coated with graphene material

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Embodiment Construction

[0047]The following terms are defined and used throughout the specification and claims:

[0048] at% Is the abbreviation of atomic percentage, that is, the number of one kind of atoms compared to the total number of atoms;

[0049] wt% is an abbreviation for weight percent, which is the weight of one compound in a mixture or complex compared to the total weight of all compounds;

[0050] Graphene It is an atom-thick planar sheet of carbon atoms arranged in a hexagonal lattice structure;

[0051] Graphene-based materials is a layered material containing at least 30 at% carbon and having properties generally attributed to graphene-based materials, which can be any type of graphene, such as single-layer graphene, few-layer graphene, multi-layer graphite ene, graphene oxide (GO), reduced graphene oxide (rGO) and graphene nanoplatelets (GNP).

[0052] Iron-based powder material Is a material with iron as the main component, such as but not limited to pure iron and stain...

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Abstract

The present invention relates to graphene-coated iron-based particles and a method for producing the same. A composite powder suitable for powder metallurgy and additive manufacturing processes is provided, the composite powder comprising particles of an iron-based material with a coating of a graphene-based material wherein the concentration of the graphene-based material is between 0.1 wt% and 1.0 wt%.

Description

technical field [0001] The present invention relates to graphene-coated iron-based particles and methods for their manufacture, in particular to stainless steel and iron particles coated with graphene or graphene-based materials to optimize particles for additive manufacturing processes. Background technique [0002] Additive manufacturing (AM), or 3D printing, is a manufacturing technique that allows complex 3D objects to be formed under computer control. It allows rapid prototyping and manufacturing of plastic and metal parts. Additive manufacturing is an umbrella term that includes several technologies such as selective laser sintering (SLS), selective laser melting (SLM), electron beam melting (EBM), fused deposition modeling (FDM) and stereolithography (SLA) and other technologies. [0003] Metal powder-based technologies dominate the field of AM for the production of metal products. Final products with complex geometries and tailored properties such as strength and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/16C01B32/182B33Y70/10
CPCB33Y70/10B22F10/28C01B32/194B22F1/16Y02P10/25B22F2301/35B22F2302/40B33Y80/00B22F2303/20B22F2304/10B22F2998/10B22F2999/00
Inventor U·詹森S·蒂登M·塔哈尔L·迪亚兹T·雷莫宁
Owner GRAPHMATECH AB