Material Science Day 1
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30 Terms
metals
de-localized electrons
metals
strong conductors
conduction
the process of transferring heat or electricity through a material due to the movement of free electrons.
insulation
the process of preventing heat or electricity from being transferred through a material by reducing the movement of electrons.
polymer
what material is plastic like ?
polymer
transparent
ceramics
hard but brittle
ceramic
pottery
ceramics
resistant to high temperatures
insulators
polymers and ceramics
ceramics
mix of non-metal and metal compounds
processing, structure, properties, and performance
What characterizes a material ?
material processing
what is annealing?
material processing
what is sintering?
material processing
what is casting?
annealing
uses heat to make the material easier to manipulate
sintering
turns loose powder into a solid piece by heating it below its melting point
casting
processing of pouring liquid material into a mold to harden
material structure
what is “glassy”
material structure
what is “poly crystalline” ?
material structure
what is “crystalline” ?
glassy
a disordered, non-crystalline arrangement of atoms or molecules
crystalline
a highly ordered, geometric arrangement of atoms, ions, or molecules
polycrystalline
a solid made up of many small, individual crystalline regions called grains
material property
what is “melting temperature”?
material property
what is “thermal expansion coefficient” ?
material property
what is “elastic modulus” ?
elastic modulus
non-permanent deformation when pressure is applied
thermal expansion coefficient
the value of how much a material expands when heated.
the type of atoms and how they are arranged
what determines materials’ properties ?