Effect of Resin Supporter on Cross-sectional Scratch Testing of Plasma Sprayed Thermal Barrier Coating

cratch testing on a cross-section of a plasma sprayed coating produces cone-shaped damage at the top of the coating. The cone area reflects the cohesion strength of the coating. This work investigates the effect of the mounting resin on the projected cone area. Air plasma sprayed thermal barrier co...

Full description

Saved in:
Bibliographic Details
Main Authors: Hathaipat Koiprasert, Sirinee Thaiwatthana, Panadda Niranatlumpong
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8296
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63930
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Chiang Mai University
Language: English
Description
Summary:cratch testing on a cross-section of a plasma sprayed coating produces cone-shaped damage at the top of the coating. The cone area reflects the cohesion strength of the coating. This work investigates the effect of the mounting resin on the projected cone area. Air plasma sprayed thermal barrier coatings (TBC) were prepared using four different mounting resins and methods namely cold mounting epoxy resin, cold mounting epoxy resin with added filler, hot mounting Bakelite, and hot mounting carbon conductive thermosetting. The cold mounting epoxy resin gave a well-defined cone area and a largest average projected cone area (lowest cohesion of the coating) values than other mounting resin. Additive component in the mounting resin increases the scratch resistance of the TBCs by altering the deformation mechanisms.