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PACE Technologies Metallographic Preparation CLASS Chart icon

Silicon-Silicon Carbide Engineering Ceramic
Specimen Preparation (Class 10 Procedures)
Metallographic Class 10 sample preparation

SiSiC ceramics is a machineable ceramic and is thus fairly easy to prepare for microstructural evaluation. The primary concern is to minimize excessive cracking during cutting and initial grinding through the use of the appropriate diamond wafering blade and with semi-fixed abrasives on a metal mesh cloth. Polishing with CMP (chemical mechanical polishing) techniques is also a very effective way to remove surface and subsurface damage to the specimen.

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
  5-10 lbs 200/200 rpm 5 min Metallographic individual polishing force Metallographic central polishing force
6 um DIAMAT diamond
on TEXPAN polishing pad
SIAMAT
colloidal silica
10 lbs 200/200 rpm 5 min Metallographic individual polishing force Metallographic central polishing force
1 um DIAMAT diamond
on GOLDPAD or ATLANTIS
polishing pad
SIAMAT
colloidal silica
10 lbs 200/200 rpm 5 min Metallographic individual polishing force Metallographic central polishing force
SIAMAT Colloidal silca
on TEXPAN polishing pad
  10 lbs 200/200 rpm 5 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 Steatite ceramic
SiSiC ceramic, 400X (DIC) as polished

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.


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3601 E. 34th St.
Tucson, Arizona 85713
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email: pace@metallographic.com
https://www.metallographic.com


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Metallographic
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