User Tools
demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:start
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
|
demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:start [2019/02/14 23:33] 127.0.0.1 external edit |
demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:start [2019/05/22 22:43] (current) demoroom |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Crystal Structures ====== | ====== Crystal Structures ====== | ||
| - | {{tag> needs_review untagged unlocated}} | + | {{tag> mechanics properties_of_matter chemistry symmetry atoms unlocated}} |
| <WRAP box right> | <WRAP box right> | ||
| Line 11: | Line 11: | ||
| ===== Description ===== | ===== Description ===== | ||
| - | A variety of Crystal Structures for Demonstration | + | A large variety of crystal structure models, including a number of unit cell models. They all consist of some number of painted wooden spheres joined rigidly by steel rods. |
| - | + | ||
| - | + | ||
| - | + | ||
| - | Demonstrate Crystal Structures with this demo | + | |
| - | + | ||
| - | Updated on 05/30/13 | + | |
| ===== Purpose ===== | ===== Purpose ===== | ||
| + | To demonstrate the principles of lattice structures in crystalline solids, illustrate some of the different types of structure possible, and how these structures can be combined to create more complicated crystalline structures. | ||
| ===== Apparatus ===== | ===== Apparatus ===== | ||
| + | * Crystal structure models | ||
| ===== Setup ===== | ===== Setup ===== | ||
| Line 33: | Line 27: | ||
| ===== Notes ===== | ===== Notes ===== | ||
| + | Pictured below on the left is the set of 'primitive' unit cells. They are, in order from top to bottom, left to right: | ||
| + | |||
| + | * Simple cubic | ||
| + | * Body-centered cubic | ||
| + | * Face-centered cubic | ||
| + | * Face-centered orthorhombic | ||
| + | * End-centered orthorhombic | ||
| + | * Simple tetragonal | ||
| + | * Body-centered tetragonal | ||
| + | * Simple hexagonal | ||
| + | * (Body centered? not sure) hexagonal | ||
| + | * Simple monoclinic | ||
| + | * End-centered monoclinic | ||
| + | * Rhombohedral | ||
| + | |||
| + | There are also another ten similar models showing some of the possible combinations of these unit cells, pictured in the second and third row of pictures. There is also a great model of a pyrite crystal, pictured right. | ||
| <WRAP group> | <WRAP group> | ||
| <WRAP half column> | <WRAP half column> | ||
| + | |||
| + | <WRAP box right> | ||
| + | {{ :demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:img_20190522_150554.jpg?400|}} | ||
| + | |||
| + | // Overview picture of the 'primitive' unit cells. // | ||
| + | </WRAP> | ||
| + | |||
| + | <WRAP box right> | ||
| + | {{ :demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:img_20190522_153638.jpg?400|}} | ||
| + | |||
| + | // Overview of some of the other crystal lattice structure models available. // | ||
| + | </WRAP> | ||
| + | |||
| + | <WRAP box right> | ||
| + | {{ :demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:img_20190522_153744.jpg?400|}} | ||
| + | |||
| + | // Overview of some of the other crystal lattice structure models available. // | ||
| + | </WRAP> | ||
| </WRAP> | </WRAP> | ||
| <WRAP half column> | <WRAP half column> | ||
| + | |||
| + | <WRAP box right> | ||
| + | {{ :demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:img_20190522_150500.jpg?400|}} | ||
| + | |||
| + | // Pyrite crystal model. // | ||
| + | </WRAP> | ||
| + | |||
| + | <WRAP box right> | ||
| + | {{ :demonstrations:1_mechanics:1r_properties_of_matter:crystal_structures:img_20190522_153838.jpg?400|}} | ||
| + | |||
| + | // Overview of some of the other crystal lattice structure models available. // | ||
| + | </WRAP> | ||
| </WRAP> | </WRAP> | ||
demonstrations/1_mechanics/1r_properties_of_matter/crystal_structures/start.1550187203.txt.gz · Last modified: 2019/02/14 23:33 by 127.0.0.1
Page Tools
