{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Cheat Sheet Test #1

Cheat Sheet Test #1 - Thermosetting – polymer once set by...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Crystalline – material which the atoms repeat or periodic in arrangement. Lattice – 3d array of points coinciding with atom position Coordination number – number of atoms touching any 1 atom in a crystal Atomic packing factor – percent of unit cell that is atom and not empty space Polymorphsim – elements that have more than one crystal structure Allotropy - same as polymorphism Grain boundary – where two crystals meet Anisotropy –different values of a property in different directions Isotropic – same values regardless of direction Thermoplastic – polymer that softens when heated
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Thermosetting – polymer, once set by heat, won’t change under heat Micelles (crystallites) – small crystalline regions Spherulites – sphere of polymer crystals, being highly random Self-interstitial – atom crowded into a space, creating a void somewhere else Frenkel defect – cation is forced to move into an interstitial site Schottky defect – removing an anion and cation Edge dislocation – extra half plane of atoms (dislocation line) Screw dislocation – shear stress...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online