Solid State Structure

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Solid State Structure

Post by Algerien1970 on Wed 20 May - 16:35


Atoms can be gathered together as an aggregate through a number of different processes, including condensation, pressurization, chemical reaction, electrodeposition, and melting. The process usually determines, at least initially, whether the collection of atoms will take to form of a gas, liquid or solid. The state usually changes as its temperature or pressure is changed. Melting is the process most often used to form an aggregate of atoms. When the temperature of a melt is lowered to a certain point, the liquid will form either a crystalline solid or and amorphous solid.


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Re: Solid State Structure

Post by Algerien1970 on Wed 20 May - 16:39

Primary Metallic Crystalline Structures
(BCC, FCC, HCP)


As pointed out on the previous page, there are 14 different types of crystal unit cell structures or lattices are found in nature. However most metals and many other solids have unit cell structures described as body center cubic (bcc), face centered cubic (fcc) or Hexagonal Close Packed (hcp). Since these structures are most common, they will be discussed in more detail.

Body-Centered Cubic (BCC) Structure



Face Centered Cubic (FCC) Structure



Hexagonal Close Packed (HCP) Structure




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