bct-Carbon

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Body-centered tetragonal carbon (bct-carbon) is a very hard material produced from graphite under high pressure at room temperature. Looking perpendicular to the slices [100] and [001], its structure looks hexagonal; from the slice [010] it appears to be built from small squares. In this Demonstration you can vary several parameters of the 3D atomic structure.

Contributed by: Karl Scherer (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

Bonds

The chemical bonds of the squares of carbon atoms are colored red; the chemical bonds between squares of different layers are colored green.

Viewpoints

Try the various viewpoints from the drop-down menu or drag to rotate the crystal.

Slice

The "slice" setter bar lets you restrict the atoms displayed to one of three slices of the crystal.

Show

The "show" setter bar lets you make the atoms or links invisible.

Atom size

Use this slider to change the size of the black carbon atoms.

Atom opacity

Use this slider to make the atoms transparent.

Line thickness

Use this slider to change the thickness of the chemical bonds.

Line opacity

Use this slider to make the bonds transparent.

Square size

Use this slider to change the size of the carbon squares.

Square distance

Use this slider to set the distance between the centers of two neighboring carbon squares.

Distance between square layers

Use this slider to change the distance between adjacent layers of carbon squares.

Reset

Click this checkbox to reset the crystal parameters to their default value.

Floor

Click this checkbox to switch the "floor" display on and off.

Axes

Click this checkbox to display coordinate axes.



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