PACE Technologies logo PACE Technologies web collage PACE Technologies best price guarantee logo

PACE Technologies Metallographic Preparation CLASS Chart icon

Tungsten Carbide (CERMET)
Specimen Preparation (Class 11 Procedures)
Metallographic Class 11 sample preparation

The key to proper specimen preparation of hard / tough CERMET materials such as tungsten carbide is to to grind with a semi-fixed abrasive (polycrystalline diamond on a metal mesh cloth), followed by combining diamond abrasive with a CMP (chemical mechanical polishing) abrasive such as SIAMAT colloidal silica. SECTIONING Diamond Wafering blade - medium grit / low concentration

MOUNTING
Castable Mounting with Epoxy or Acrylic resins

POLISHING
Abrasive/surface Lubricant Force/ sample Speed
(Head/base)
Time Individual
Force mode
Central Force
mode
70 micron diamond grinding disk*
Water 5-10 lbs 200/200 rpm Planar
  Metallographic central polishing force
30 um DIAMAT diamond
suspension on CERMESH
Metal Mesh cloth
DIALUBE Diamond
Extender
5-10 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force
9 um DIAMAT diamond on
POLYPAD polishing pad
DIALUBE Diamond
Extender
5-10 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force
3 um DIAMAT diamond
on TEXPAN polishing
pad
DIALUBE Diamond
Extender
10 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force
SIAMAT Colloidal silca
on TEXPAN polishing pad
SIAMAT
colloidal silica
10 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force

*Required for central polishing force. Click here for more information on central vs. individual polishing force polishing.

Metallographic micrograph of Tunsten carbide
Tungsten carbide, 1500X (DIC), etched with 50% HNO3 and 50% HCl

ETCHING

Common Etchants
PACE Technologies Recommended Etchants

PACE Technologies Etchant Database

CAUTION:Safety is very important when etching. Be sure to wear the appropriate protective clothing and observe all WARNINGS on chemical manufacuters SDS (Safety Data Sheets). Also review the COMMENTS and CONDITIONS Section for each etchant.


Copyright 2006-2020
PACE Technologies ® - 3601 E. 34th St., Tucson, AZ 85713, USA
Telephone +1-520-882-6598 FAX +1-520-882-6599
All Rights Reserved


PACE Technologies facebook link Blog us on Tumblr Blog us on Tumblr PACE Technologies Google+ PACE Technologies Google+