biostudies-literaturePikul JHU.S. Department of EnergyU.S. Department of Energy (DOE)719https://www.ebi.ac.uk/biostudies/studies/S-EPMC6345818biostudies-literatureUnknown9(1)This paper describes a nickel-based cellular material, which has the strength of titanium and the density of water. The material's strength arises from size-dependent strengthening of load-bearing nickel struts whose diameter is as small as 17 nm and whose 8 GPa yield strength exceeds that of bulk nickel by up to 4X. The mechanical properties of this material can be controlled by varying the nanometer-scale geometry, with strength varying over the range 90-880 MPa, modulus varying over the range 14-116 GPa, and density varying over the range 880-14500 kg/m³. We refer to this material as a "metallic wood," because it has the high mechanical strength and chemical stability of metal, as well as a density close to that of natural materials such as wood.Scientific reportsHigh strength metallic wood from nanostructured nickel inverse opal materials.PMC6345818DE-AC05-06OR23100Pikul JHBraun PVLiu BZhang ROzerinc SDeshpande VSKing WPfalseHigh strength metallic wood from nanostructured nickel inverse opal materials.This paper describes a nickel-based cellular material, which has the strength of titanium and the density of water. The material's strength arises from size-dependent strengthening of load-bearing nickel struts whose diameter is as small as 17 nm and whose 8 GPa yield strength exceeds that of bulk nickel by up to 4X. The mechanical properties of this material can be controlled by varying the nanometer-scale geometry, with strength varying over the range 90-880 MPa, modulus varying over the range 14-116 GPa, and density varying over the range 880-14500 kg/m³. We refer to this material as a "metallic wood," because it has the high mechanical strength and chemical stability of metal, as well as a density close to that of natural materials such as wood.2019-01-01T00:00:00Z2019 Jan2025-04-26T08:52:17.566Z2019-03-26T22:41:52ZS-EPMC63458183067961510.1038/s41598-018-36901-3