Near-Spherical Alumina - NSM

First established in 2007, with headquarter in the Ya’ an Economic Development Zone of Sichuan, Bestry is a world leader specialized in the research and development, production and sales of functional powder materials .

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Through independent research and development of technical process, as well as manufacturing of key production equipment, Bestry has successfully built a complete portfolio of products with high performance and stable quality.

The company’ s core products include thermal conductive powder materials, such as spherical alumina, near-spherical alumina, aluminum nitride powder spherical aluminum nitride, flake boron nitride, electro-magnetic shielding powder materials, nickel-coated graphite, silver-coated nickel, boehmite, lithium battery membrane coating, and pole plate coating.

 

Near-Spherical Alumina - NSM series

Product Features

  • Near-spherical, uniform shape;
  • High alpha phase , high crystallinity;
  • Narrow particle size distribution;
  • Low impurities;
  • Small particle size powder with low viscosity increasing and high thermal conductivity

Applications

  • Thermal Interface Material: Filler for heat sink sheet, filler for heat dissipation board (MC board), heat dissipating grease, phase change sheet, semiconductor encapsulation, Silicone-based heat dissipating adhesive, and other compounds. 
  • Thermal Engineering Plastics: LED lamp cover, switch shell, notebook shell, mobile phone shell, water tank, motor coil frame, etc.
  • High thermal conductivity aluminum-based CCL (Al Based CCL): high-power LED circuit board, power circuit board.
  • Fine polishing materials for the fine polishing on precision instruments, parties of optical instrument, etc. 
  • Coating of ceramic filter, such as ceramic membrane for sewage water and drinking water.
  • Lithium Ion Battery Ceramic Separator.

Specifications

Properties Unit NSM Series Product Code Method/Device
NSM-1S NSM-2S
Particle Size (D50) μm 0.76 1.05 Light Scattering/HORIBA LA-950v2
pH Value - 8.75 8.57 Mettler FE-20 pH Meter
Appearance - Near-spherical Near-spherical SEM
Specific Surface Area m2/g 3.38 2.4 3H-2000A Specific Surface Area Analyer
E.C. μS/cm 20.8 16.34 Mettler FE-30 Conductivity Meter
Moisture % 0.07 0.08 Halogen water-determination meter
/(110℃ /10min)
Chemical
 Composition
SiO2 ppm 310 310 ICP-AES
Fe2O3 ppm 84 95 ICP-AES
Na2O ppm 19 26 ICP-AES

 

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