1. Polymers & Resins

• Increased Strength: Alumina particles increase the stiffness, flexural strength, and compressive strength of polymer composites. 
• Enhanced Hardness: It significantly improves the hardness of the material, making it more resistant to wear and tear.
• Improved Thermal Resistance: The inherent high thermal stability of alumina contributes to better thermal resistance in composites, allowing them to maintain their mechanical integrity at higher temperatures.

2. Performance Chemicals

• Catalyst and Catalyst Support: Alumina, particularly γ-alumina, serves as a support for various catalysts in reactions requiring high temperatures or pressures. It also functions as a catalyst itself for reactions like alcohol dehydration to form alkenes. 
• Adsorbent and Desiccant: Its high porosity makes activated alumina an excellent adsorbent, used to remove water from gas streams (making it a desiccant), as well as other impurities like arsenic and fluoride from liquids. 
• Chromatography: In analytical chemistry, alumina powder acts as a stationary phase in chromatography, a technique used for separating and analyzing different chemical compounds.

3. Pharmaceuticals

• Stationary Phase: High-purity, activated alumina powder functions as a stationary phase in chromatography. 
• Separation: It helps in separating compounds, particularly alkaloids, based on their polarity and molecular size during drug formulation and analysis. 
• Purification: Its high adsorption capacity and selectivity are crucial for separating and purifying active pharmaceutical ingredients. 
• Desiccant: Activated alumina is used as a desiccant in pharmaceutical packaging to adsorb moisture and prevent drug degradation.
• Stabilization: By maintaining a dry environment, it preserves the stability of moisture-sensitive drugs. 
• Drug Carriers: Alumina nanoparticles are utilized in drug delivery systems to carry and release drugs effectively.
• Antimicrobial Agent: Alumina in nanoparticle form can also act as an antimicrobial agent. 

4. Energy

• Electronic Cooling: Alumina powder is a common additive in thermal pastes and greases used to dissipate heat from high-power electronic devices like those in electric vehicles, improving their performance and longevity. 
• High-Voltage Insulation: High-purity alumina helps create insulators with high dielectric strength, preventing electrical leakage and failure in long-distance power transmission lines. 
• Sparkplugs: Its thermal and electrical insulating properties allow alumina to withstand the high temperatures and voltage in a sparkplug, ensuring reliable ignition and a longer lifespan for the component. 
• Fuel Cells and Hydrogen Production: Alumina's thermal stability and chemical resistance make it ideal for fuel cell components, contributing to their long-term reliability and efficiency. It also helps enhance hydrogen production in certain processes by acting as a catalyst or scavenger. 
• Solar Thermal Systems: Alumina ceramics are used in solar thermal applications for constructing receiver tubes, heat exchangers, and coatings due to their resistance to high temperatures, corrosion, and wear. 
• Refractories for Chemical Processes: High alumina refractories are used in petrochemical processes, such as syngas reactors and autothermal reforming, to withstand demanding high-temperature and chemically harsh conditions.

5. Construction

• Chemical Resistance: It provides cement with improved resistance against chemical attacks from sulfates and acids. 
• Fluxing Agent: In cement production, alumina acts as a fluxing agent, lowering the melting point of raw materials during the process.
• High-Temperature Materials: Alumina is used to produce ceramics and refractory products that can withstand extreme temperatures, making them suitable for harsh industrial environments. 
• Kiln Furniture: It is used in the manufacturing of ceramic rollers for roller kilns in the ceramic tile industry.
• Polishing and Grinding: Alumina's hardness and wear resistance are utilized in abrasive products for industrial grinding and polishing operations.

6. Fabric Solutions

• Fire Retardancy: Alumina Trihydrate (ATH), a form of alumina, is added to fiber-reinforced plastics (FRPs) to boost their fire-retardant capabilities. Its inclusion helps reduce smoke by absorbing heat through an endothermic reaction. 
• Wear Resistance: In some applications, alumina powder is used in composite coatings with other materials, like zirconium dioxide or titanium oxide, to improve the wear resistance of the final composite structure.

7. Paints, Coatings & Adhesives

• Wear and Scratch Resistance: Nano-alumina powder, when added to coatings, significantly increases hardness and wear resistance, making the coating more durable. 
• Corrosion Resistance: Alumina coatings applied through methods like plasma spraying or plasma-electrolytic oxidation (PEO) provide excellent corrosion protection for metallic surfaces. 
• Thermal Insulation: Alumina coatings can offer enhanced thermal insulation properties, protecting surfaces at high temperatures. 
• Adhesion: Adding nano-alumina to a coating can reduce volume shrinkage during curing and improve the adhesion between the coating and the substrate.
• Catalysis: Activated alumina acts as a catalyst in the paint production process, speeding up chemical reactions to form high-quality resins like alkyds and polyesters more efficiently.