Thermal gradient behavior of TBCs subjected to a laser gradient test rig: simulating an air-to-air combat flight

Download
  1. Get@NRC: Thermal gradient behavior of TBCs subjected to a laser gradient test rig: simulating an air-to-air combat flight (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1007/s11666-015-0311-6
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Thermal Spray Technology
ISSN1059-9630
Volume25
Pages282290; # of pages: 9
SubjectCarbon dioxide; Coatings; Flight simulators; Plasma jets; Plasma spraying; Supersonic aircraft; Temperature; Thermal barrier coatings; Thermal cycling; Thermal gradients; Yttria stabilized zirconia; Air plasma spray; Laser test; simulated fighter jet mission; Thermal barrier coating (TBC); YSZ; Fighter aircraft
AbstractA computer-controlled laser test rig (using a CO2 laser) offers an interesting alternative to traditional flame-based thermal gradient rigs in evaluating thermal barrier coatings (TBCs). The temperature gradient between the top and back surfaces of a TBC system can be controlled based on the laser power and a forced air back-face cooling system, enabling the temperature history of complete aircraft missions to be simulated. An air plasma spray-deposited TBC was tested and, based on experimental data available in the literature, the temperature gradients across the TBC system (ZrO2-Y2O3 YSZ top coat/CoNiCrAlY bond coat/Inconel 625 substrate) and their respective frequencies during air-to-air combat missions of fighter jets were replicated. The missions included (i) idle/taxi on the runway, (ii) take-off and climbing, (iii) cruise trajectory to rendezvous zone, (iv) air-to-air combat maneuvering, (v) cruise trajectory back to runway, and (vi) idle/taxi after landing. The results show that the TBC thermal gradient experimental data in turbine engines can be replicated in the laser gradient rig, leading to an important tool to better engineer TBCs.
Publication date
PublisherSpringer International Publishing
LanguageEnglish
AffiliationNational Research Council Canada; Automotive and Surface Transportation; NRC Industrial Materials Institute
Peer reviewedYes
NPARC number21277051
Export citationExport as RIS
Report a correctionReport a correction
Record identifiera69cfa3c-68b7-405f-abfc-27db9ffaba98
Record created2015-11-10
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)