alumina
Ruby's base compound
Alumina is aluminum oxide, a chemical compound of aluminum and oxygen.
It occurs naturally as corundum and in gemstones like sapphires and rubies.
Industrial alumina serves as the primary source for producing aluminum metal and appears in abrasives, ceramics, and refractories due to its hardness and heat resistance.
Oxygen-bonded compound
- corundumCrystalline aluminum oxide
- bauxiteAluminum hydroxide ore
- sapphireBlue precious corundum
- rubyPrecious red gemstone
crystal · electrolysis · smelting · anodizing · calcination · hydrate · precursor · feedstock
Enclosed heat-producing structure
- kilnOven for hardening clay
- firebrickHeat-resistant ceramic block
- insulationThermal transfer prevention
- heat-resistantUnaffected by high temperatures
linings · crucible · foundry · high-temperature · molten · slag · castable · thermal barrier
Smoothing by friction
- grindingMolar action sometimes
- sandingFriction-smoothing a surface
- lappingFine abrasive finishing process
- buffingFriction-based shine work
finishing · corundum · grit · emery · sandpaper · deburring · honing · tumbling
Translucent fired clay
- stonewareDense ceramic fired hot
- earthenwareLow-temperature fired pottery
- glazeThin lustrous coating
- firingTerminating employment
sintered · spark plug · substrate · tile · dental crown · biomedical · implant · translucent
Accelerating reactions without consumption
- petrochemicalProduct from crude processing
- refiningRemoving unwanted elements
- dehydrationExcessive fluid loss
- isomerizationMolecular rearrangement keeping same atoms
surface area · porous · regeneration · fluidized bed · zeolite · chemical processing
Moisture-absorbing material
- dryingMoisture removal process
- moisture removalExtracting water from something
- water treatmentCleaning supply for consumption
- chromatographyTechnique separating mixtures by differential migration
dehydration · air drying · natural gas · compressed air · humidity control · regenerable
oxide
Oxygen-bonded compound
ruby · crystal · electrolysis · smelting · anodizing · calcination · hydrate · precursor · feedstock · powder
furnace
Enclosed heat-producing structure
- kilnOven for hardening clay
- firebrickHeat-resistant ceramic block
- insulationThermal transfer prevention
heat-resistant · linings · crucible · foundry · high-temperature · molten · slag · castable · thermal barrier · sintering
polishing
Smoothing by friction
- grindingMolar action sometimes
- sandingFriction-smoothing a surface
- lappingFine abrasive finishing process
buffing · finishing · corundum · grit · emery · sandpaper · deburring · honing · tumbling · cutting
porcelain
Translucent fired clay
- stonewareDense ceramic fired hot
- earthenwareLow-temperature fired pottery
- glazeThin lustrous coating
firing · sintered · spark plug · substrate · tile · dental crown · biomedical · implant · translucent · wear-resistant
catalysis
Accelerating reactions without consumption
- petrochemicalProduct from crude processing
- refiningRemoving unwanted elements
- dehydrationExcessive fluid loss
isomerization · surface area · porous · regeneration · fluidized bed · zeolite · chemical processing
desiccant
Moisture-absorbing material
- dryingMoisture removal process
- moisture removalExtracting water from something
- water treatmentCleaning supply for consumption
chromatography · dehydration · air drying · natural gas · compressed air · humidity control · regenerable
- Inorganic Compoundssodium chloride, magnesium chloride, potassium chloride, calcium carbonate, titanium dioxide
- Inorganicssalts, metals, oxides, minerals, carbonates
- Australian Miningbauxite, iron ore, gold deposits, opal, nickel
- hard materialsdiamond, tungsten carbide, corundum, synthetic diamond, steel
- heat protectionheat shield, heat shields, tiles, ceramic tiles, heat sink
- insulatorsrubber, insulator, glass, dielectric, electrical tape
- aluminum foilThin metallic kitchen sheeting
- aluminum canMetal beverage container
- aluminium foilThin metallic food wrap
- aluminum batMetal baseball hitting tool
- aluminum sidingLightweight exterior wall covering
- aluminum hydroxideAmphoteric metal hydroxide compound