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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
  Nano Sized Alumina
  Sinterable Silicon Carbide Powders
  Refractory Materials
  Abrasive Media
  Lapping Slurries
  Spherical Media
  Fumed Silica
  Cast Polymer Fillers
  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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