Material Science Flashcards
fundamental classes
mettalic, ceramic, polymeric
major
metals, ceramics, polymers, composites, advanced
addition of other elements into a metal
alloying
brass compostion
copper zinc
bronze composition
copper zinc tin
pewter compositiin
tin, copper, bismuth, antimony
cast iron compositiin
iron, carbon, manganese, silicon
steel composition
iron, carbon
stainless steel composition
iron, chromium, nickel
traditional process for making metallic components begins with melting of the metal or alloy
casting
molten mass is poured into a mold
casting
mayerials that have a large number of non localized electrons
metals
highest electrical conductivity
silver
not a refractory metal
lead
behaves like iron
ferromagnetic
weakly magnetic
paramagnetic
not attracted/ repelled
diamagnetic
used in modern, super strong permanent magnets
neodymiun
give corrosion resistance
chromium
true about refractory metals
resistant to heat
super cooled liquids because they do nit crystallize when cooled
glass
principal component of the white wares
clay
employed at elevated temperature and often in reactive
refractories
used to wear, grind, or cut away other material; diamond, silicon, carbide
abrasive ceramics
when mixed with water, they form a paste
cement
compounds of metallic and non metallic elements
ceramics
lowering the temperature of a liquid below its melting point before it becomes solid
super cooling
oxides, nitrides and carbides are main compositional of what
ceramics
process where physical mixture of carbide and powdered metal is heated in order to solidify the powder into single piece
sintering
gluing the powders together with glasses
vitrification
composed of ceramics and metals
cermets
ceramic materials are found on
group 1-5
materials having a fracture strain of less than about 5%
brittle
not a ceramic
carbon
when all repeating units along a chain are of the same type
homopolymer
chains may be composed of two or more different repeat units
copolymer
