Article comprising a fine-grained metallic material and a polymeric material
DCFirst Claim
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1. An article comprising:
- (i) a permanent substrate comprising a polymer material with or without particulate addition, and(ii) a fine grained metallic layer having a grain size in the range of 2 to 5,000 nm, a thickness ranging from 30 microns to 5 cm, a modulus of resilience ranging from 0.25 to 25 MPa; and
wherein a surface of said polymer substrate is coated over at least a portion thereof with the fine grained metallic layer or an intermediate conductive layer which is coated with said fine grained metallic layer and has an average surface roughness of Ra 0.25 to 25 micron over at least the portion which is coated.
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Abstract
Lightweight articles comprising a polymeric material at least partially coated with a fine-grained metallic material are disclosed. The fine-grained metallic material has an average grain size of 2 nm to 5,000 nm, a thickness between 25 micron and 5 cm, and a hardness between 200 VHN and 3,000 VHN. The lightweight articles are strong and ductile and exhibit high coefficients of restitution and a high stiffness and are particularly suitable for a variety of applications including aerospace and automotive parts, sporting goods, and the like.
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Citations
4 Claims
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1. An article comprising:
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(i) a permanent substrate comprising a polymer material with or without particulate addition, and (ii) a fine grained metallic layer having a grain size in the range of 2 to 5,000 nm, a thickness ranging from 30 microns to 5 cm, a modulus of resilience ranging from 0.25 to 25 MPa; and wherein a surface of said polymer substrate is coated over at least a portion thereof with the fine grained metallic layer or an intermediate conductive layer which is coated with said fine grained metallic layer and has an average surface roughness of Ra 0.25 to 25 micron over at least the portion which is coated. - View Dependent Claims (2, 3, 4)
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Specification