Challenge of CMAS Attack on TBCs and Strategy for Novel TBC Development

When:  May 18, 2022 from 17:30 to 20:00 (ET)
Associated with  Hartford Chapter Community

Please join us on

Date: Wednesday, May 18, 2022

Title: Challenge of CMAS Attack on TBCs and Strategy for Novel TBC Development Engineering Director, Surface Technologies Division
Curtiss-Wright Corporation


  • Social – 5:30 PM
  • Dinner – 6:30 PM
  • Presentation – 7:30 PM


  • Students $10
  • Retirees - $15
  • ASM Members and Guests - $35

RSVP to:

Dick Mason by Sunday May 15, 2022

Corner Pub
1046 New Britain Avenue, West Hartford, CT 06110
(860) 231-0241



Thermal barrier coating (TBC) is a critical technology widely used in a variety of aero and industrial gas turbine applications. Typically, a TBC consists of a MCrAlY metallic bond coat and a ceramic topcoat, and its primary function is to provide durable oxidation resistance and thermal insulation in turbine hot-section.  However, environmental degradation of TBCs by the attack of molten deposits of calcium magnesium alumino-silicates (CMAS) is becoming one of the most vital factors resulting in the severely early TBC damages and even failure, while turbine engine inlet temperatures are kept increasing for higher fuel efficiency.  To address this challenge, some general approaches for inhibiting CMAS attack and damages to TBC systems will be reviewed. Specially, a new composite phase TBC system and a modified topcoat material are investigated in CMAS environment, and the test results and the strategy for suppressing the infiltration and prorogation of molten CMAS into the TBCs will be presented.


Dr. Chin Ma received his Ph. D degree in Material Science and Engineering, with specialty in high temperature alloys and protection methods.  He is the members of ASM/TSS, AWS/ITSA and ACS, Curtiss-Wright Corporate Technical Fellow.  Dr. Ma has authored more than 130 technical papers and more than 17 patents to his name.    

Currently he is a development engineering director with Surface Technologies Division of Curtiss-Wright Corporate. He is responsible for the development of new materials, coating processes and qualifications for major turbine engine OEMs within CWST division. His former employment includes VP of R&D at USNano Group, engineering at turbine division, Goodrich and senior engineer at BASF, with over 30 years of working experience in the fields of energy, aerospace and IGT applications mostly using thermal spray technologies.  He was the principle investigator of multiple DoE and DoD projects, and his research fields involved with nano-materials, proton member techniques for gas purification and separation, novel TBC systems, solid oxide fuel cells, high performance magnetic materials and automobile catalytic coatings.  He is active in developing new coating systems and process techniques for thermal barrier coatings, including SPPS/SPC TBCs, low-k TBCs and CMAS-resistant TBCs, as well as high entropy alloy (HEA) coating and advanced abradable materials and coatings. 


Corner Pub
1046 New Britain Avenue
West Hartford, CT 06110