A long-standing debate about the structure of solid iron at the centre of the Earth looks set to be reignited following new laboratory tests carried out by scientists in the US. The researchers say ...

Cubic zirconia, the imitation diamond, is a special ... But the hexagonal 2D structure is enough to promise new avenues for research in electronics that use a similar layer of a naturally ...

And in terms of its hardness and pressure resistance, lonsdaleite surpasses the qualities of its cubic cousin; thanks to its hexagonal carbon bonds, lonsdaleite can take significantly higher ...

IT has been reported1,2 that pure titanium metal, prepared by the dissociation of titanium tetraiodide3, undergoes an allotropic change in the temperature range 860–900° C. Titanium has a ...

The cubic phase looks identical when viewed front on, from one side or from above. In contrast, the new 4H hexagonal phase lacks this cubic symmetry and hence varies more with direction -- a ...

Elastic moduli of hexagonal diamond and cubic diamond formed under shock compression. Physical Review B , 2021; 103 (10) DOI: 10.1103/PhysRevB.103.L100101 Cite This Page : ...

a, An FESEM image of a cut in a (111)-oriented cubic mesoporous titania film.Both the hexagonal top surface and the cubic pore structure can be seen. b, A tapping-mode AFM image of the hexagonal ...

On very fast compression time scales, material kinetics hinder the transition from graphite to the equilibrium cubic diamond crystal structure that we commonly know as diamond. Shock wave ...

The diamonds’ unusual crystal structure may make them harder than ordinary diamonds. By Isaac Schultz Published September 13, 2022 | Comments ( 0 ) | 𝕏 ...

Hexagonal diamonds, like regular diamonds, are made of carbon, but their atoms are arranged in a hexagonal structure rather than a cubic one. Advertisement.

One of these 20 forms is cubic ice (I c), which has a diamond-cubic structure with a repeating face-centred cubic array of tetrahedrally-coordinated water molecules.This type of ice is believed to ...