1. Ceramic materials
Structural ceramics: used for manufacturing cutting tools, mechanical seals, ceramic bearings, valves, etc., due to their high strength, hardness, and wear resistance.
Functional ceramics: used for electronic ceramic substrates, sensitive ceramic components, high-voltage sodium lamps, etc., utilizing their insulation, high temperature resistance, and optical properties.
Transparent ceramics: High purity alumina can be used to prepare transparent ceramics for high-end scenarios such as laser windows and optical sensors.
2. Refractory materials
Used for manufacturing refractory bricks, refractory castables, refractory fibers, amorphous refractory materials, etc., it is widely used in high-temperature industries such as steel, glass, cement, and petrochemicals as high-temperature furnace lining and protective materials.
3. Abrasives and polishing
As an abrasive used in sandpaper, grinding wheels, cutting blades, etc., it is used for precision machining and surface polishing of materials such as metals, glass, semiconductors, etc.
Nano alumina particles can be used for ultra precision polishing, such as semiconductor wafers, optical lenses, etc.
4. Electronics and electrical
Electronic components: used for manufacturing integrated circuit substrates, capacitor dielectrics, electronic packaging materials, etc., utilizing their high insulation and high temperature resistance.
In the field of LED, high-purity alumina is a raw material for preparing sapphire crystals, which is used as a substrate for LED chips to improve luminous efficiency.
High voltage electrical appliances: used as insulation filling materials for epoxy castings in ultra-high voltage electrical appliances (such as transformers, switchgear) to enhance insulation and mechanical properties.
5. Catalyst and carrier
Petrochemical industry: used as a catalyst or catalyst carrier for petroleum cracking, hydrogenation reactions, etc.
Environmental protection field: used for automobile exhaust purification, VOCs decomposition, etc., loaded with precious metal catalysts to improve reaction efficiency.
Industrial adsorption: Activated alumina has a porous structure and is used for gas drying, wastewater treatment (such as fluorine-containing water treatment), adsorption of lubricating oil vapor, etc.
6. In the field of new energy
Lithium battery separator coating: Aluminum oxide coating can prevent separator melting and thermal runaway, improve battery safety and puncture resistance.
Positive electrode material coating: Covering the surface of lithium cobalt oxide, ternary materials, etc. with an aluminum oxide layer to suppress side reactions and extend battery life.
Solid state electrolyte: As an ion conductor or interface modification layer in solid-state batteries, it enhances ion conductivity and interface stability.
7. Biomedical sciences
Artificial joints and implants: High purity alumina is used to manufacture bioceramics such as artificial hip joints and dental implants due to its biocompatibility and wear resistance.
Drug carrier: Nano alumina can be used as a drug carrier to achieve targeted and controlled release.
8. Coatings and coatings
Wear resistant coating: added to coatings to enhance their hardness, wear resistance, and corrosion resistance, used for automotive paint protection films, 3C product casings, etc.
Thermal conductive coating: As a filler for thermal interface materials such as thermal pads and thermal grease, it optimizes the thermal management performance of electronic devices.
Anti corrosion coating: used for industrial protection of oil pipelines, offshore platforms, etc., with a salt spray resistance time of over 5000 hours.
9. Other fields
Aerospace: Used for high-temperature coatings, thermal protection systems, and can withstand extreme high temperatures and sudden cold and hot environments.
Optical materials: used for manufacturing laser windows, infrared windows, high-pressure sodium lamps, etc.
Composite materials: used as reinforcing phases in metal based or polymer based composite materials to enhance material properties.