Manganese-aluminum bronze is a relatively harder bronze because of the addition of manganese. Microstructural preparation of this material is relatively straight forward.
SECTIONING
MAXCUT Abrasive blade (MAX-C or MAX-I series)
MOUNTING
Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resins
POLISHING
Abrasive/surface |
Lubricant |
Force/ sample |
Speed |
Time |
240 grit SiC paper |
Water |
5-10 lbs |
200/200 rpm |
Until plane |
| 6 um DIAMAT diamond on TEXPAN polishing pad | DIALUBE Purple Extender | 5-10 lbs |
200/200 rpm |
2 minutes |
1 um DIAMAT diamond on GOLDPAD polishing pad |
DIALUBE Purple Extender |
5-10 lbs |
200/200 rpm |
2 minutes |
0.05 um Nanometer alumina on NAPPAD polishing pad |
|
5-10 lbs |
100/100 rpm |
1 minute |
 |
Mangnese-Aluminum Bronze, 400X DIC (etchant: ammonium persulface, HCl, DI Water) |