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BCC vs. FCC: What's the Difference?

Edited by Huma Saeed || By Sara Rehman || Published on February 7, 2024
BCC (Body-Centered Cubic) and FCC (Face-Centered Cubic) are two types of crystal lattice structures differing in atom arrangement.

Key Differences

BCC (Body-Centered Cubic) is a crystal structure where atoms are located at each corner of a cube and one atom at the body center. In contrast, FCC (Face-Centered Cubic) has atoms at each cube's corners and at the centers of all the cube faces. This fundamental difference in atomic arrangement affects their properties and applications.
Sara Rehman
Feb 07, 2024
In a BCC structure, there is less atom-to-atom contact, with only 8 neighbors touching each atom. FCC structures, however, have 12 equidistant nearest neighbors, providing more atom-to-atom contact. This distinction impacts the density and packing efficiency of the materials.
Sara Rehman
Feb 07, 2024
BCC metals, such as iron at room temperature, typically exhibit lower density and are less ductile compared to FCC metals like aluminum. The reduced density in BCC is due to the less efficient packing of atoms.
Sara Rehman
Feb 07, 2024
FCC structures are generally more ductile and have a higher melting point than BCC structures. This is because the closer packing in FCC structures results in stronger metallic bonds.
Aimie Carlson
Feb 07, 2024
In terms of slip systems, which are important in determining how materials deform, FCC structures have a greater number of slip systems compared to BCC. This makes FCC metals more formable and suitable for various industrial applications.
Janet White
Feb 07, 2024
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Comparison Chart

Atom Arrangement

Atoms at cube corners and center
Atoms at cube corners and face centers
Sara Rehman
Feb 07, 2024

Nearest Neighbors

8 neighbors
12 neighbors
Sara Rehman
Feb 07, 2024

Density

Generally lower
Generally higher
Sara Rehman
Feb 07, 2024

Ductility

Less ductile
More ductile
Janet White
Feb 07, 2024

Melting Point

Generally lower
Generally higher
Harlon Moss
Feb 07, 2024
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BCC and FCC Definitions

BCC

BCC is a type of unit cell in crystallography with a central atom surrounded by eight corner atoms.
Chromium has a BCC crystal lattice, contributing to its hardness.
Harlon Moss
Jan 06, 2024

FCC

FCC, in metallurgy, describes a crystalline structure with closely packed atoms.
The FCC structure of nickel increases its strength and corrosion resistance.
Janet White
Jan 06, 2024

BCC

BCC refers to a cubic crystal lattice where each corner and the center of the cube has an atom.
Iron crystallizes in a BCC structure at room temperature.
Janet White
Jan 06, 2024

FCC

FCC is a crystal structure commonly observed in metals with high ductility and thermal conductivity.
Silver, with its FCC structure, exhibits high thermal and electrical conductivity.
Sara Rehman
Jan 06, 2024

BCC

BCC, in metallurgy, describes a crystalline structure with less closely packed atoms.
The BCC structure of alpha-iron makes it relatively soft and ductile.
Aimie Carlson
Jan 06, 2024

FCC

FCC refers to a crystal lattice where atoms are located at each corner and the center of each face of the cube.
Aluminum exhibits an FCC structure, enhancing its malleability.
Sara Rehman
Jan 06, 2024

BCC

BCC stands for a lattice arrangement contributing to the magnetic properties of certain metals.
The BCC arrangement in iron contributes to its ferromagnetic properties.
Sara Rehman
Jan 06, 2024

FCC

FCC stands for a lattice arrangement that often results in higher ductility and melting points in metals.
Copper's FCC structure contributes to its excellent electrical conductivity.
Janet White
Jan 06, 2024

BCC

BCC is a crystal structure commonly observed in metals at high temperatures.
Tungsten remains in the BCC phase across a wide temperature range.
Sara Rehman
Jan 06, 2024

FCC

FCC is a type of unit cell in crystallography with atoms closely packed at cube corners and face centers.
In gold, the FCC structure imparts high ductility and resistance to corrosion.
Aimie Carlson
Jan 06, 2024

BCC

Initialism of blind carbon copy
Sara Rehman
Jan 05, 2024

FCC

(crystallography) face-centered cubic
Sara Rehman
Jan 05, 2024

BCC

Initialism of body-centered cubic
Sara Rehman
Jan 05, 2024

FCC

An independent governmeent agency that regulates interstate and international communications by radio and television and wire and cable and satellite
Sara Rehman
Jan 05, 2024

BCC

To send something by blind carbon copy.
Sara Rehman
Jan 05, 2024

FAQs

How are atoms arranged in an FCC structure?

At each corner of the cube and at the centers of all the cube faces.
Janet White
Feb 07, 2024

What does BCC stand for?

Body-Centered Cubic.
Sara Rehman
Feb 07, 2024

How are atoms arranged in a BCC structure?

At each corner of a cube and one at the body center.
Sara Rehman
Feb 07, 2024

What is a key characteristic of BCC metals?

Generally less ductile and lower density.
Aimie Carlson
Feb 07, 2024

What does FCC stand for?

Face-Centered Cubic.
Sara Rehman
Feb 07, 2024

What is a key characteristic of FCC metals?

Higher ductility and melting point.
Janet White
Feb 07, 2024

Which has a more efficient packing, BCC or FCC?

FCC, due to more atom-to-atom contact.
Sara Rehman
Feb 07, 2024

Are BCC metals more magnetic than FCC?

Typically, yes, due to their crystal arrangement.
Sara Rehman
Feb 07, 2024

Can BCC structures be found in non-metals?

Rarely, it's primarily a feature of metals.
Harlon Moss
Feb 07, 2024

Is aluminum a BCC or FCC metal?

Aluminum is FCC.
Sara Rehman
Feb 07, 2024

Can FCC structures be found in non-metals?

Rarely, it's mainly in metals.
Janet White
Feb 07, 2024

What is the slip system difference between BCC and FCC?

FCC has more slip systems, making it more formable.
Sara Rehman
Feb 07, 2024

Which structure is more common in industrial applications, BCC or FCC?

FCC, due to its ductility and strength.
Sara Rehman
Feb 07, 2024

Does FCC structure change with temperature?

For some metals, it can change with extreme temperature variations.
Sara Rehman
Feb 07, 2024

Which has more industrial uses, BCC or FCC metals?

FCC metals, due to their versatility.
Aimie Carlson
Feb 07, 2024

Can BCC and FCC structures coexist in alloys?

Yes, in some alloys, both structures can be present.
Janet White
Feb 07, 2024

Is the BCC structure more prevalent at high or low temperatures?

It's more prevalent at high temperatures for some metals.
Janet White
Feb 07, 2024

Do BCC metals have higher or lower melting points than FCC?

Generally lower.
Sara Rehman
Feb 07, 2024

Is iron a BCC or FCC metal?

Iron is BCC at room temperature.
Sara Rehman
Feb 07, 2024

Are FCC metals better conductors of electricity than BCC?

Often, yes, due to their structure.
Aimie Carlson
Feb 07, 2024
About Author
Written by
Sara Rehman
Sara Rehman is a seasoned writer and editor with extensive experience at Difference Wiki. Holding a Master's degree in Information Technology, she combines her academic prowess with her passion for writing to deliver insightful and well-researched content.
Edited by
Huma Saeed
Huma is a renowned researcher acclaimed for her innovative work in Difference Wiki. Her dedication has led to key breakthroughs, establishing her prominence in academia. Her contributions continually inspire and guide her field.

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