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Address:
155 Suhong East Road, Suzhou Industrial Park, Jiangsu Province, China 
WHAT ARE YOU LOOKING FOR?
Alumina Suspension is a stable suspension system formed by evenly dispersing alumina (Al₂O₃) particles in a liquid medium (such as water or organic solvents). Based on factors such as particle size, concentration, dispersing medium, and surface modification, it is widely applied in surface treatment and coatings; dielectric materials for electronic and optical applications, LED/display technologies, and transparent ceramic precursors; catalysts and chemical reaction carriers; composite material reinforcing fillers; and in fields like bioceramics, drug carriers, and lithium battery separators.
At the same time, alumina suspension is also widely used in the CMP (Chemical Mechanical Polishing) field, for polishing metal materials like stainless steel and hard alloys, silicon wafers, glass, optical lenses, especially resin lenses, as well as for the nanoscale flattening of precision surfaces such as sapphire (for semiconductor wafers, smartphone screens, smartphone frames, and SIM card pins).
In practical applications, it is necessary to select the pH value, viscosity, and type of dispersant of the dispersion liquid based on specific requirements to ensure optimal performance.
Alumina has high hardness, with its main component being corundum, which has a Mohs hardness of 9, second only to diamond. Alpha-alumina is the most stable crystal form, possessing very high hardness and a melting point of about 2050°C. It has a dense structure and stable physicochemical properties.
Therefore, when producing alumina dispersion liquids, we often use high-purity alpha-alumina powder, employing dispersing techniques to achieve uniform distribution of nano/micron-sized abrasive particles, avoiding agglomeration, in order to minimize scratches and residues on polished surfaces, significantly enhancing smoothness and consistency. Many customers require a "mirror finish" after polishing.
Changsha Kona Fine Chemicals has introduced an advanced water-based aluminum oxide suspension.
In the production of aluminum oxide dispersions, Kona employs high-purity α-alumina powder and advanced dispersion techniques to achieve uniform distribution of nano- and micro-sized abrasive particles, minimizing agglomeration. This process significantly reduces scratches and residues on polished surfaces, enhancing gloss and consistency—a factor that many customers seek for achieving a "mirror-like" finish.
Kona's aluminum oxide polishing slurry features an eco-friendly water-based formulation made with deionized water as the dispersing medium, free from organic solvents and with minimal VOC emissions. This aligns with green manufacturing standards, effectively balancing efficient production with environmental responsibilities and helping companies achieve sustainable development goals.
Exceptional Stability
The suspension is formulated with anti-settling agents and dispersants, which undergo chemical modification to enhance the surface properties of the nano/micro abrasive particles. This results in improved dispersion and stability within the medium. The combination of dispersant methods, including mechanical and ultrasonic dispersion, helps to reduce surface energy between particles, thereby decreasing agglomeration and increasing repulsion between particles to enhance the slurry's dispersion and stability. 0.1μm to 5μm) and pH levels based on customer needs, making it suitable for various polishing scenarios, including:
g-term without agglomeration; even if layering occurs, a simple shake or stir will restore homogeneity, saving customers the hassle of mixing their own polishing slurry and reducing operational costs.
Versatile Applications
The company can adjust particle size (ranging from
Semiconductor Wafers: High-precision flattening
Optical Lenses: Ultra-smooth surface processing
Ceramic Components: Achieving sub-nanometer roughness, polishing of aluminum nitride substrates
Optoelectronic Materials: Precision processing of sapphire substrates and microcrystalline glass
Metalworking: Deburring of aerospace alloy coatings, mirror polishing of stainless steel, aluminum alloys, and hard materials.
If you are interested in the alumina dispersion solution or any other abrasives, please feel free to contact us at any time to a further discuss.
Contact Us
Website: www.polishingslurry.com
Email: inquiry@polishingslurry.com
With technology refining perfection, craftsmanship achieves excellence!
