Alloying Flashcards
Pure metals are at it’s highest
Metling point
Lattice structure
Displaces atoms and this affects size
Atomic number is proportional to
Smaller intestiational bigger substitutionall
Larger grain size has higher
Ductility
Lower grain size has higher
Strength
Ores are an example
Compounds (oxides and sulfides)
4 main methods of mining
Surface(open pit), placer( separating from mineral s in sand or gravelfrom sand ,underground, in-situ inside to get purest form)
Go to deeper deposit. Most expensive
Underground
Used to sift out valuable metals. Sediments. Beach snads
Placer
Dissolves the ore resource in place. Pumps the liquid to surface. Primarily for uranium
In situ
Earthly impurities found in rock with ores
Gangue
Ores is cleaned to get the fewest impurities
Concentration
Putting sulphide away with water. Ore is purified at bottom
Froth separation/ flotation
Magnetic separation
Most effective after crushing stands fir
TNT( tri nitro toluene)
involves stacking of metal-bearing ore into a heap on an impermeable pad, irrigating the ore for an extended period of time with a chemical solution to dissolve the sought-after metals, and collecting the blank as it percolates from the base of the heap.
Bayer’s procces( leaching)
Interstial alloy
when a metal usuaaly of a smaller aotmic number moves in between the larger atoms of the base metals.
Substianial alloy
When a metal usually of a simialr atomic number repalces atoms in the base metal.
Interstial alloys typically
due to the Different sized atoms the crystal lattice is much more rigid. therefore it tends to be less ductile, and less malleable. but also has increased hardness
Four different concentrations methods
Froth separation, gravity, electromagnetic, and leaching
Isolation of metals
Reduction by carbon, electrolysis, and other metals
Purifaction of metals
Smelting, Calcination, Zone refining, Liquation, Distillation, Vapor phase refining,
