| 
 | 
 | 
 | 
 | 
 | 
  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
  Surplus Raw Materials
   
   
   
   
   
 

 

 
   
   

Reactive Grade Alumina MR-70

The MR-70 reactive alumina from Martinswerk is well suited for production of thick and thin film substrates for electronic applications by tape-casting/manufacturing of oxide ceramics demanding an extremely high Al2O3 content. The MR-70 is well suited for applications subjected to extremely high mechanical, thermal, and electrical and chemical loads. With an average particle size of 0.5-0.7 microns and <0.1% Na2O, this powder is a highly reactive binding agent for superior technical ceramics.
 
Typical Analysis
(Al2O3)
99.8%
(MgO doped)
»0.1%

(SiO2)

0.06%
(Fe2O3)
0.01-0.03%
(Na2O)
<0.01%
(CaO)
0.01-0.05%
Alpha Al2O3
>90%
Loss on Ignition
<0.2%
Specific Surface Area (BET)
6.0-10.0 m2/g
Primary Crystal Size
»0.5 um
Bulk Density
»1100 kg/m3
 
Pressed Density: (50 Mpa) 2.2 g/cc
Fired Density: (1600°C, 2hr) 2.7 g/cc
 
Typical Particle Size Distribution

d10
0.2-0.4
um
d50
0.5-0.7
um
d90
1.3-2.1
um
0%
>45
um
 
 


320 Constance Drive | Warminster | Pennsylvania | 18974 | P (215) 444-9315 | F (215) 444-9317
©2004-2005 Panadyne All Rights Reserved.  Terms and Conditions