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Spherical Alumina Powder

XINLI's Spherical Alumina Powder is produced from high-purity aluminum oxide through advanced spray drying and sintering processes. Featuring a uniform spherical morphology, high thermal conductivity, and excellent flowability, our alumina powder is ideal for use in thermal interface materials, electronic packaging, and high-performance ceramic applications. It is especially suitable for processes that demand high purity, precise particle control, and enhanced heat dissipation performance.

Spherical Alumina Powder (Conventional Type) is produced by the high-temperature melting-sphere-jet method, and then sieving, purification, and other processes to produce the final object.

Spherical Alumina Powder

Main Colors

  • White
  • Off-White

Price

USD $2.53-17.01 / kg EXW

Packaging

25 kg bags or customized packaging on request

Model XL-1 XL-2 XL-5 XL-10 XL-20 XL-30 XL-40 XL-70 XL-90 XL-120
Particle Distribution (μm)
D10
0.520.682.514.1510.416.6823.4544.2255.3290.56
Particle Distribution (μm)
D50
1.052.085.4210.5420.3230.2541.2671.4587.69135.22
Particle Distribution (μm)
D90
2.115.149.1918.8137.2448.7466.12134.82172.02229.8
Specific Surface Area (m²/g) 1.681.280.950.870.640.430.260.150.110.07
Electric Conductivity (μS/cm) 6.075.305.614.066.785.394.564.043.794.45
pH Value 7.527.797.707.407.617.347.567.497.467.54
Moisture (%) 0.040.030.050.030.060.040.030.050.030.06
True Density (g/cm³) 3.713.703.733.763.793.793.803.873.883.88
Spheroidization Rate (%) 97989898989898969696
Al2O3 (%) 99.8399.9499.9399.9499.9499.9499.9499.9499.9499.94
SiO2 (ppm) 445373423358350352386391365344
Fe2O3 (ppm) 152120175135140125150157165135
Na2O (ppm) 103106100106103106106105106106
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About XINLI

XINLI is a leading manufacturer of industrial abrasives, specializing in fused alumina, silicon carbide, and advanced polishing powders. With over 25 years of industry experience and a global client base, we are committed to delivering materials that meet the highest quality and precision standards.

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