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Materials
Classes of materials
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Metadata
Classes of materials
Broader Terms
BT
↑
Materials
More specific terms
NT2
↓
Air
►
▼
NT3
↓
Compressed air
NT2
↓
Building materials
►
▼
NT3
↓
Building materials by properties
►
▼
NT4
↓
Aggregates, rock and stone
►
▼
NT5
↓
Aggregates
►
NT5
↓
Consolidated aggregates, rock and stone
►
NT5
↓
Rock in building
►
NT5
↓
Stone
►
NT4
↓
Ceramic materials
►
▼
NT5
↓
Brick
NT5
↓
Cement
►
NT5
↓
Cermets
NT5
↓
Clay
►
NT5
↓
Glass
►
NT5
↓
Plaster
NT5
↓
Stucco
NT4
↓
Composite materials
►
▼
NT5
↓
Concrete
►
NT5
↓
Ferrocement
NT5
↓
Types of composites
►
NT4
↓
Engineering soils
►
▼
NT5
↓
Backfill soils
NT5
↓
Cement treated soils
►
NT5
↓
Compacted soils
►
NT5
↓
Drained soil
NT5
↓
Foundation soils
NT5
↓
Membrane encapsulated soil layers
NT5
↓
Reinforced earth
NT5
↓
Remolded soils
►
NT5
↓
Soil lime mixtures
NT4
↓
Hazardous materials
►
▼
NT5
↓
Carcinogens
NT5
↓
Explosives
►
NT5
↓
Flammable materials
►
NT5
↓
Hazardous chemicals
►
NT5
↓
Poisons
►
NT5
↓
Radioactive materials
►
NT4
↓
Hydrocarbon based materials
►
▼
NT5
↓
Asphalt based materials
►
NT5
↓
Bituminous materials
►
NT5
↓
Coal based materials
►
NT5
↓
Hydrocarbon based materials from multiple sources
►
NT5
↓
Maltha based materials
►
NT5
↓
Petrochemicals
►
NT4
↓
Materials by chemical properties, composition & structure
►
▼
NT5
↓
Cylindrical bodies
NT5
↓
Elastic bodies
►
NT5
↓
Expanded materials
NT5
↓
Extrudates
NT5
↓
Foams and emulsions
►
NT5
↓
Impurities
NT5
↓
Materials at high or low temperatures
►
NT5
↓
Materials by direction of measurement properties
►
NT5
↓
Materials by strength or resistance to chemical action
►
NT5
↓
Materials by weight
►
NT5
↓
Oils
►
NT4
↓
Materials by shape or form
►
▼
NT5
↓
Bars (Building materials)
►
NT5
↓
Blocks
►
NT5
↓
Fabrics
►
NT5
↓
Fibers
►
NT5
↓
Materials by surface characteristics
►
NT5
↓
Particles
►
NT5
↓
Pipe and tubing
►
NT5
↓
Rope, wire and cable
►
NT5
↓
Sheets and plates
►
NT5
↓
Tile and shingles
►
NT5
↓
Webbing
►
NT4
↓
Metals
►
▼
NT5
↓
Alloys
►
NT5
↓
Types of metals
►
NT4
↓
Organic materials
►
▼
NT5
↓
Animal materials
►
NT5
↓
Vegetable materials
►
NT4
↓
Plastics
►
▼
NT5
↓
Elastomers
►
NT5
↓
Formed plastics
►
NT5
↓
Nylon
NT5
↓
Phenolic plastic
NT5
↓
Reinforced plastics
►
NT5
↓
Resins
►
NT5
↓
Silicones
NT5
↓
Thermoplastic materials
NT5
↓
Thermosetting materials
NT4
↓
Waste products
►
▼
NT5
↓
Bottom ash
NT5
↓
Clinkers
NT5
↓
Combustion deposits
NT5
↓
Crumb rubber
NT5
↓
Dredged materials
NT5
↓
Dust
►
NT5
↓
Fly ash
►
NT5
↓
Foundry sand
NT5
↓
Recycled materials
NT5
↓
Rubble
NT5
↓
Scrap
►
NT5
↓
Silica fume
NT5
↓
Slag
►
NT5
↓
Tailings
NT5
↓
Wood waste
NT3
↓
Engineered materials
►
▼
NT4
↓
Smart materials
NT4
↓
Synthetics
NT3
↓
Materials by end use
►
▼
NT4
↓
Electronic materials
►
▼
NT5
↓
Electronic materials by conductivity
►
NT5
↓
Ferroelectric materials
►
NT5
↓
Magnetic materials
►
NT5
↓
Microelectronic materials
►
NT5
↓
Optoelectronic materials
NT5
↓
Thermoelectric materials
NT4
↓
Engine materials
►
▼
NT5
↓
Engine oils
NT5
↓
Working fluids
►
NT4
↓
Industrial materials
►
▼
NT5
↓
Materials in specific industries
►
NT5
↓
Raw materials
NT5
↓
Strategic materials
NT4
↓
Optical materials
►
▼
NT5
↓
Electrooptic materials
NT5
↓
Fiberoptic materials
NT5
↓
Holographic materials
NT5
↓
Laser materials
NT5
↓
Luminous materials
NT5
↓
Optical fibers
NT5
↓
Photographic materials
NT5
↓
Reflectorized materials
►
NT5
↓
Refractive materials
►
NT4
↓
Structural materials
►
▼
NT5
↓
Bearing materials
NT5
↓
Materials in specific structural applications
►
NT5
↓
Reinforcing materials
NT4
↓
Vehicular materials
►
▼
NT5
↓
Aircraft materials
NT5
↓
Automotive materials
NT5
↓
Shipbuilding materials
NT5
↓
Spacecraft materials
►
NT3
↓
Materials by function
►
▼
NT4
↓
Abrasives
►
▼
NT5
↓
Grits
NT4
↓
Adhesives
►
▼
NT5
↓
Adhesive tape
NT5
↓
Binders
►
NT5
↓
Fluxes
NT5
↓
Glue
NT5
↓
Grout
►
NT5
↓
Mortar
►
NT5
↓
Pastes
►
NT5
↓
Solder
NT4
↓
Cleansers
►
▼
NT5
↓
Detergents
NT5
↓
Disinfectants
NT5
↓
Soap
NT4
↓
Coatings, fillers and paints
►
▼
NT5
↓
Coatings
►
NT5
↓
Fillers (Materials)
►
NT5
↓
Finishes
►
NT5
↓
Moisture barriers
NT5
↓
Paint
►
NT5
↓
Penetrants
NT5
↓
Plugs (Fillers)
NT5
↓
Primers (Materials)
NT5
↓
Sealing compounds
►
NT5
↓
Varnish
NT5
↓
Waterproofing materials
►
NT5
↓
Waxes
NT5
↓
Wood preservatives
NT4
↓
Colorants
►
▼
NT5
↓
Dyes
NT5
↓
Ink
NT5
↓
Marking materials
NT4
↓
Coolants
►
▼
NT5
↓
Antifreeze
NT5
↓
Brines
NT5
↓
Cooling water
NT5
↓
Nuclear reactor coolants
NT5
↓
Refrigerants
NT4
↓
Cushioning materials
►
▼
NT5
↓
Energy absorbing materials
NT4
↓
Deicing chemicals
►
▼
NT5
↓
Calcium chloride
NT5
↓
Calcium magnesium acetate
NT5
↓
Sodium chloride
NT4
↓
Fasteners
►
▼
NT5
↓
Bolts
►
NT5
↓
Chains
NT5
↓
Cotters
►
NT5
↓
Dowels (Fasteners)
NT5
↓
Fastenings
NT5
↓
Hinges
NT5
↓
Locks (Fasteners)
NT5
↓
Lugs
NT5
↓
Nails
NT5
↓
Nuts (Fasteners)
NT5
↓
Pins
NT5
↓
Rivets
NT5
↓
Screws
NT5
↓
Spikes
NT5
↓
Stud connectors
NT4
↓
Friction materials
►
▼
NT5
↓
Grease
NT5
↓
Lubricants
NT5
↓
Surface active agents
NT4
↓
Insulating materials
►
▼
NT5
↓
Acoustic materials
►
NT5
↓
Electric insulating materials
►
NT5
↓
Heat insulating materials
►
NT4
↓
Linings
NT4
↓
Materials by flammability
►
▼
NT5
↓
Fire extinguishing agents
NT5
↓
Fire resistant coatings
NT5
↓
Fire resistant materials
NT5
↓
Fire retardants
NT5
↓
Fireproof materials
NT5
↓
Flammable materials
NT5
↓
Nonflammable materials
NT4
↓
Plasticizers
►
▼
NT5
↓
Superplasticizers
NT4
↓
Sorbents
►
▼
NT5
↓
Absorbents
►
NT5
↓
Adsorbents
NT5
↓
Oil sorbents
NT4
↓
Wedges
NT3
↓
Materials by source
►
▼
NT4
↓
Local materials
NT2
↓
Chemicals
►
▼
NT3
↓
Chemical compounds
►
▼
NT4
↓
Chemical compounds by primary element or compound
►
▼
NT5
↓
Alkali metal compounds
NT5
↓
Aluminum compounds
NT5
↓
Ammonium compounds
NT5
↓
Calcium compounds
NT5
↓
Carbonates
NT5
↓
Chlorine compounds
►
NT5
↓
Halides
NT5
↓
Hydrates
NT5
↓
Hydroxides
NT5
↓
Iron compounds
NT5
↓
Lead compounds
NT5
↓
Lithium compounds
NT5
↓
Magnesium compounds
NT5
↓
Nitrogen compounds
►
NT5
↓
Oxides
NT5
↓
Phosphates
NT5
↓
Silicon compounds
NT5
↓
Sodium compounds
NT5
↓
Sulfur compounds
►
NT4
↓
Inorganic compounds
►
▼
NT5
↓
Aluminum inorganic compounds
►
NT5
↓
Ammonia
NT5
↓
Calcium inorganic compounds
►
NT5
↓
Carbon inorganic compounds
►
NT5
↓
Chlorites
NT5
↓
Cyanides
NT5
↓
Fluorides
NT5
↓
Hydrogen inorganic compounds
►
NT5
↓
Iron inorganic compounds
►
NT5
↓
Lithium chloride
NT5
↓
Magnesium chloride
NT5
↓
Nitrogen inorganic compounds
►
NT5
↓
Phosphorus inorganic compounds
►
NT5
↓
Potassium chloride
NT5
↓
Silicon inorganic compounds
►
NT5
↓
Sodium inorganic compounds
►
NT5
↓
Sulfur inorganic compounds
►
NT5
↓
Uranium inorganic compounds
►
NT4
↓
Organic compounds
►
▼
NT5
↓
Groups of organic compounds
►
NT5
↓
Individual organic compounds
►
NT4
↓
Salts
►
▼
NT5
↓
Inorganic salts
NT5
↓
Organic salts
NT5
↓
Soluble salts
NT3
↓
Chemical elements
►
▼
NT4
↓
Chemical elements by group and name
►
▼
NT5
↓
Actinides
►
NT5
↓
Group 0 elements
►
NT5
↓
Group I elements
►
NT5
↓
Group II elements
►
NT5
↓
Group III elements
►
NT5
↓
Group IV elements
►
NT5
↓
Group V elements
►
NT5
↓
Group VI elements
►
NT5
↓
Group VII elements
►
NT5
↓
Transition elements
►
NT4
↓
Classes of chemical elements
►
▼
NT5
↓
Alkali metals
NT5
↓
Halogens
NT5
↓
Nonmetals
NT5
↓
Trace elements
NT5
↓
Transuranium elements
NT3
↓
Chemical substances
►
▼
NT4
↓
Accelerators (Materials)
NT4
↓
Anodic materials
►
▼
NT5
↓
Sacrificial anodes
NT4
↓
Catalysts
►
▼
NT5
↓
Monolithic catalysts
NT5
↓
Oxidation catalysts
NT5
↓
Pelleted catalysts
NT4
↓
Chemical substances by pH
►
▼
NT5
↓
Acids
NT5
↓
Bases (Chemistry)
►
NT4
↓
Extenders
NT4
↓
Flocculating agents
NT4
↓
Flotation agents
NT4
↓
Inhibitors (Chemistry)
►
▼
NT5
↓
Antioxidants
NT5
↓
Retarders (Chemistry)
►
NT4
↓
Mixtures
►
▼
NT5
↓
Additives
NT5
↓
Blends
NT5
↓
Colloidal systems
►
NT5
↓
Dispersions (Chemistry)
►
NT5
↓
Formulations
NT5
↓
Solutions (Chemistry)
►
NT5
↓
Suspensions (Chemistry)
►
NT4
↓
Oxidizing agents
►
▼
NT5
↓
Photochemical oxidants
NT4
↓
Polymers
►
▼
NT5
↓
Copolymers
NT4
↓
Reagents
NT4
↓
Tracers (Chemistry)
NT4
↓
Wetting agents
NT3
↓
Molecular structure
►
▼
NT4
↓
Atoms
►
▼
NT5
↓
Subatomic particles
►
NT4
↓
Ions
►
▼
NT5
↓
Anions
NT5
↓
Cations
NT4
↓
Isotopes
►
▼
NT5
↓
Radioisotopes
NT4
↓
Molecules
►
▼
NT5
↓
Monomers
NT2
↓
Fuels
►
▼
NT3
↓
Alcohol fuels
►
▼
NT4
↓
Methanol fuels
NT3
↓
Biomass fuels
NT3
↓
Fossil fuels
►
▼
NT4
↓
Coal fuels
►
▼
NT5
↓
Coal gas
NT4
↓
Petroleum fuels
►
▼
NT5
↓
Kerosene
NT5
↓
Liquefied petroleum gas
NT5
↓
Natural gas
►
NT3
↓
Fuel composition
►
▼
NT4
↓
Fuel additives
►
▼
NT5
↓
Antiknock compounds
►
NT5
↓
Oxidizers
NT4
↓
Fuel emulsions
NT4
↓
Fuel mixtures
NT3
↓
Fuels by end use
►
▼
NT4
↓
Aviation fuels
►
▼
NT5
↓
Aircraft fuels
►
NT4
↓
Gas turbine fuels
NT4
↓
Motor fuels
►
▼
NT5
↓
Diesel fuels
►
NT5
↓
Gasoline
►
NT4
↓
Spacecraft fuels
►
▼
NT5
↓
Propellants
NT3
↓
Fuels by properties
►
▼
NT4
↓
Alternate fuels
NT4
↓
Clean fuels
NT4
↓
Fuel air mixtures
NT4
↓
Fuel gas
NT4
↓
Fuel oils
NT4
↓
Lean fuel mixtures
NT4
↓
Liquid fuels
NT4
↓
Residual fuels
NT4
↓
Synthetic fuels
NT4
↓
Unburned fuels
NT3
↓
Hydrogen fuels
►
▼
NT4
↓
Liquid hydrogen
NT3
↓
Nuclear fuels
►
▼
NT4
↓
Spent reactor fuels
NT2
↓
Natural earth crust materials
►
▼
NT3
↓
Deposits (Geology)
►
▼
NT4
↓
Alluvium
NT4
↓
Colluvium
NT4
↓
Lacustrine deposits
NT4
↓
Lenses (Geology)
NT4
↓
Marine deposits
NT4
↓
Mineral deposits
NT4
↓
Moraines
NT4
↓
Organic deposits
NT4
↓
Sediments
NT4
↓
Talus
NT4
↓
Till
NT4
↓
Volcanic deposits
NT3
↓
Parent materials
NT3
↓
Petroleum
►
▼
NT4
↓
Petroleum gases
►
▼
NT5
↓
Natural gas
NT4
↓
Petroleum liquids
►
▼
NT5
↓
Crude oil
NT5
↓
Maltha
NT4
↓
Petroleum solids
►
▼
NT5
↓
Asphalt
►
NT5
↓
Bitumen
NT5
↓
Tar
NT3
↓
Rocks
►
▼
NT4
↓
Coal
►
▼
NT5
↓
Anthracite
NT5
↓
Bituminous coal
NT5
↓
Lignite
NT5
↓
Subbituminous coal
NT4
↓
Igneous rocks
►
▼
NT5
↓
Alkalic rock
NT5
↓
Basalt
NT5
↓
Dolerite
NT5
↓
Gabbro
NT5
↓
Granite
NT5
↓
Porphyry
NT5
↓
Trap rock
NT5
↓
Volcanic rock
►
NT4
↓
Lithologic composition
►
▼
NT5
↓
Pores (Geology)
►
NT5
↓
Rock core
NT4
↓
Metamorphic rocks
►
▼
NT5
↓
Gneiss
NT5
↓
Illites
NT5
↓
Marble
NT5
↓
Quartzite
NT5
↓
Schist
NT5
↓
Slate
NT4
↓
Minerals
►
▼
NT5
↓
Amber
NT5
↓
Asbestos
NT5
↓
Calcites
NT5
↓
Carbonate rocks
NT5
↓
Chromates
NT5
↓
Clay minerals
►
NT5
↓
Diamonds
NT5
↓
Ettringite
NT5
↓
Feldspar
NT5
↓
Flint
NT5
↓
Graphite
NT5
↓
Gypsum
NT5
↓
Halite
NT5
↓
Mica
NT5
↓
Phosphate rock
NT5
↓
Pyrite
NT5
↓
Quartz
►
NT5
↓
Silica
►
NT4
↓
Ores
►
▼
NT5
↓
Bauxite
NT5
↓
Iron ores
NT4
↓
Rocks by properties
►
▼
NT5
↓
Bedrock
NT5
↓
Boulders
NT5
↓
Breccia
NT5
↓
Crystalline rocks
NT5
↓
Decomposed rock
►
NT5
↓
Fractured rock
NT5
↓
Manganese nodules
NT5
↓
Organic rocks
NT5
↓
Overburdens
NT5
↓
Soft rock
NT5
↓
Strata
NT5
↓
Weak rock
NT5
↓
Weathered rock
NT4
↓
Sedimentary rocks
►
▼
NT5
↓
Arenites
NT5
↓
Calcretes
NT5
↓
Chalks
NT5
↓
Cherts
NT5
↓
Clastic rocks
NT5
↓
Conglomerates (Geology)
NT5
↓
Dolomite
NT5
↓
Limestone
NT5
↓
Mudstones
NT5
↓
Oil shales
NT5
↓
Sandstones
NT5
↓
Shale
NT5
↓
Silica stone
NT5
↓
Siltstones
NT3
↓
Soils
►
▼
NT4
↓
Soil components
►
▼
NT5
↓
Groundwater
►
NT5
↓
Soil air
NT5
↓
Soil particles
NT4
↓
Soil deposits
►
▼
NT5
↓
Residual soils
NT5
↓
Suspended sediments
NT5
↓
Volcanic ash
NT4
↓
Soil groups
►
▼
NT5
↓
Cohesive soils
NT5
↓
Granular soils
NT4
↓
Soil series
NT4
↓
Soil types
►
▼
NT5
↓
Clay soils
►
NT5
↓
Cobbles
NT5
↓
Gravel
►
NT5
↓
Sand
►
NT5
↓
Silts
►
NT4
↓
Soils by place
►
▼
NT5
↓
Glacial soils
NT5
↓
Lacustrine soils
NT5
↓
Marine soils
NT5
↓
Ocean bottom soils
NT4
↓
Soils by properties
►
▼
NT5
↓
Soil horizon
►
NT5
↓
Soil structure
►
NT5
↓
Soils by chemical content or action
►
NT5
↓
Soils by consistency
►
NT5
↓
Soils by density
►
NT5
↓
Soils by frost condition or potential
►
NT5
↓
Soils by grain size and distribution
►
NT5
↓
Soils by moisture content or potential
►
NT5
↓
Soils by organic content
►
NT5
↓
Soils by permeability
►
NT5
↓
Soils by strength
►
NT3
↓
Weathered earth crust materials
►
▼
NT4
↓
Laterites
NT2
↓
States of matter
►
▼
NT3
↓
Fluids
►
▼
NT4
↓
Bubbles
NT4
↓
Gases
►
▼
NT5
↓
Noble gases
NT5
↓
Vapors
►
NT4
↓
Hydraulic fluids
NT4
↓
Inviscid fluids
NT4
↓
Liquids
►
▼
NT5
↓
Liquefied gases
NT5
↓
Mist
NT4
↓
Viscous fluids
NT3
↓
Solids
NT2
↓
Water
►
▼
NT3
↓
Water by salt content
►
▼
NT4
↓
Fresh water
►
▼
NT5
↓
Drinking water
NT4
↓
Seawater
NT3
↓
Water phases
►
▼
NT4
↓
Ice
NT4
↓
Slush
NT4
↓
Snow
NT4
↓
Water vapor
Date of creation
18-Mar-2009
Accepted term
18-Mar-2009
Descendant terms
1300
ARK
ark:/99152/t3q4jgjn41wpd6
More specific terms
7
Alternative terms
0
Related terms
0
Notes
0
Metadata
BS8723-5
DC
MADS
SKOS-Core
VDEX
XTM
Zthes
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