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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

Martinswerk reactive grade alumina powders are processed for use as a reactive binder in various applications. Technical ceramics, structural ceramics electronic substrates and refractory shapes. With a crystal size of less than 2 microns, the Martinswerk reactive grade alumina powders have an Al2O3 content of at least 99.7%.

 
 
MR32 - High compression super ground alumina as a reactive binding component for shaped and unshaped refractory products as well as for technical ceramics. Average particle size 1.3-1.7 microns.  
   
MR41 - Suitable for oxide ceramics with very high Al2O3. Particularly well suited for casting and extrusion based processes, due to the tailor made distribution. A highly reactive binding agent for shaped refractories.  
   
MR42 - Well suited for oxide ceramics demanding an extremely high Al2O3 content. With an average particle size of 1.5-3.0 microns and <0.1% Na2O this powder is a highly reactive binding agent for technical ceramics.  
   
MR52 - With an average particle size of 0.8-1.5 microns this powder was developed for wear resistant oxide ceramics requiring a high Al2O3. Excellent for processes using isostatic and axial pressing techniques. Ideal for injecting molding of alumina parts.  
 
MR70 - This MgO doped powder was developed for thick and thin film electronic substrate tape casting applications. This 99.8% Al2O3 content makes this an excellent selection for technical ceramics parts subjected to extreme wear, mechanical, thermal, chemical and electrical demands. Yields excellent sintering properties for technical ceramics. Average particle size of 0.5-0.7 microns.  
   
MR70 Data MR42 Data MR32 Data MR42 Data MR70 Data
 


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