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  Black Silicon Carbide
  Green Silicon Carbide
  Boron Carbide
  White Aluminum Oxide
  Brown Aluminum Oxide
  Calcined Alumina
  Reactive Grade Alumina
   MR-32
   MR-41
   MR-42
   MR-52
   MR-70
  Polishing Grade Calcined Alumina
  Sub Micron Alumina
  Sinterable Silicon Carbide Powders
  Refractory Materials
  Abrasive Media
  Lapping Slurries
  Spherical Media
  Surplus Raw Materials
   
   
   
   
   
   

Reactive Grade Alumina MR-32

The reactive grade MR-32 alumina from Martinswerk is well suited for oxide ceramics demanding an extremely high Al2O3 content. The MR-32 is a super ground alumina that is highly compressible as a reactive binding agent. With an average particle size of 1.3-1.7 microns and <0.1% Na2O, this powder is a highly reactive binding agent for refractory materials and technical ceramics.
 
Typical Analysis
(Al2O3)
99.8%

(SiO2)

<0.06%
(Fe2O3)
<0.03%
(Na2O)
<0.01%
(CaO)
<0.05%
Alpha Al2O3
>95%
Specific Surface Area (BET)
2.5-3.5 m2/g
Water Absorption ml/100g
12
 
 

Pressed Density: (100 Mpa) 2.4-2.6 g/cc
Fired Density: (1600° C, 2hr) 3.3-3.5 g/cc
 
Typical Particle Size Distribution
d10
0.3-0.7
um
d50
1.3-1.7
um
d90
4.0-6.0
um
 


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