About Accumet Materials Co. 

 

Accumet Materials Co.
 
       

 

   

 

 

 

 

  

 
 

Metal Coated Hollow Ceramic Microspheres

 

Metal coated hollow ceramic spheres enable design engineers to manufacture high strength light weight parts.  Thermal conductivity can be varied and thermal expansion can also be controlled.

 

The Aluminum and Nickel coatings are 99+% pure, and have a consistent thickness.   Complete coverage and adhesion is guaranteed and the coatings are stable in air at room temperature.

 

These coated microspheres can be pressed or forged into light weight structures or substrates.  Parts formed using our microspheres are durable and machinable.  For best results, the powders should be added to other matrix materials (Mg, Al, Ni, Ti, Fe, etc.) in volumes of 10-40% depending upon the properties desired.

 

Typical Coatings

 

Aluminum 10-15 wt%

Nickel 20 wt%

 

Other metal coatings are available on request.

 

 

Typical Applications

 

EMI Shielding (Nickel Coated Spheres)

Magnetic Material (Nickel Coated Spheres)

Light weight components (Al, Ni)

Fillers for Plastics (Al, Ni)

 

Standard Particle Sizes Available

 

5-20 microns with an average particle size of 12 microns

20-100 microns with an average particle size of 42 microns

80-200 microns with an average particle size of 130 microns

Other sizes can be produced on request.

HOLLOW SPHERES AVAILABLE

 3M

Target Crush Strength (90% survival) psi

 True Density

(g/cc)

 Particle Size (microns, by volume)

Distribution 10th%

 Particle Size (microns, by volume)

Distribution 50th%

 Particle Size (microns, by volume)

Distribution 90th %

 Effective top size (95%) Color (unaided eye)
3M Glass Bubbles General Purpose Series
K1 250 0.125 30  65 115 120 white
K15 300 0.15 30 60 105 115  white
 S15 300 0.15 25 55 90 95  white
 S22 400  0.22  20 35 65  75  white
 K20 500  0.20  25 55 95  120  white
 K25 750  0.25  25 55 90  105  white
 S32 2000  0.32 20 40 70  80  white
 S35 3000  0.35  10 40 75 85  white
 K37 3000  0.37 20 45 80  85  white
 S38 4000  0.38 15 40 75 85  white
 S38/HS 5500  0.38 15 40 75 85 white
K46 6000 0.46 15 40 70 80 white
* S60 10,000  0.60  51 30 55 65 white
 *S60/HS 18,000  0.60 11 30 50 60  white
* IM30K 28,000 0.60 9 16 25 29 white
 3M Glass Bubbles Floated Series              
A16/500   500  0.16  35  70 115  135 white 
 A20/1000  1000  0.20  30  60  100  120  white
 H20/1000  1000  0.20  25  55  90  110  white
 DG2/4500  4500  0.32  20  10  70  85  white
 H50/10,000 EPX  10000  0.50  20 40  50 60   white
 3M Ceramic Micro-spheres              
 G-200 >60,000 2.5 1 4 10 12 gray
 G-400  >60,000  2.4  1  5 14   24  gray
G-600 >60,000 2.3 1 6 24 40 gray
G-800 >60,000 2.2 2 18 75 200 gray
*G-850 >60,000 2.1 12 40 100 200 gray
G-200PC >60,000 2.5 1 4 9 12 gray
W-400PC >60,000 2.4 1 5 14 24 gray
W-210 >60,000 2.4 1 3 9 12 white
W-410 >60,000 2.4 1 4 15 24 white
W-610  >60,000  2.4  1 10  28 40   white

   * - ACCUMET STOCK

 

FILLITE

Average Particle Density

0.6 - 0.85 g/cc (44 lbs/ft3)

Average Bulk Density

 0.35 - 0.45 g/cc (25 lbs/ft3)
Packing Factor 60% - 65%
Hardness Mohs Scale 5
Average Wall Thickness 5% - 10% Sphere Diameter
Melting Temperature 1200 - 1350 °C (2190 - 2460 °F)
Thermal Conductivity

0.11 Wm-1K-1
Loss on Ignition

2% maximum
Surface Moisture

0.3% maximum

Crush Strength

105-210 kg/cm2 (1500 - 3000 psi)

Accumet Materials Co. accepts Visa & Mastercard

 Call us at (914)762-1540, Fax us at (914) 762-1291 or
  E-Mail us at sales@accumetmaterials.com

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