지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Impedance spectroscopy is a non-destructive evaluation (NDE) method first proposed and developed for evaluating TGO layers with compressive stress inside thermally degraded plasma-sprayed thermal barrier coatings (PS TBCs). A bode plot (phase angle (h) vs. frequency ( f )) was used to investigate the TGO layer on electrical responses. In our experimental study, the phase angle of Bode plots is sensitive for detecting TGO layers while applying compressive stress on thermal barrier coatings. It is difficult to detect TGO layers in samples isothermally aged for 100 hrs and 200 hrs without compressive stress, and substantial change of phase was observed these samples with compressive stress. Also, the frequency shift of the phase angle and change of the phase angle are observed in samples isothermally aged for more than 400 hrs.
목차
Abstract
1. Introduction
2. Experiments
3. Results and Discussion
4. Conclusions
Reference
참고문헌 (23)
참고문헌 신청
1. [학술지(정기간행물)] - K. Ogawa / 1999 / NDE of degradation of thermal barrier coating by means of impedance spectroscopy / NDT&E International 32 : 177 ~ 185
2. [학술지(정기간행물)] - J. Allen Haynes / 1996 / Oxidation and degradation of a plasmasprayed thermal barrier coating system / Surface and Coatings Technology 86-87 : 102 ~ 108
3. [학술지(정기간행물)] - S. Umemura / 1998 / Development and operating status of 1500°C gas turbine / Mitsubishi Juko Giho 35 (1) : 102 ~ 106
4. [학술지(정기간행물)] - U. Schulz / 2003 / Some recent trends in research and technology of advanced thermal barrier coatings / Aerospace Science and Technology 7 : 73 ~ 78
5. [학술지(정기간행물)] - M. Tanno / 2010 / Influence of asymmetric electrode geometry on an impedance spectrum of a plasma sprayed thermal barrier coating system / Surface & Coatings Technology 204 : 2504 ~ 2509
2. [학술지(정기간행물)] - J. Allen Haynes / 1996 / Oxidation and degradation of a plasmasprayed thermal barrier coating system / Surface and Coatings Technology 86-87 : 102 ~ 108
3. [학술지(정기간행물)] - S. Umemura / 1998 / Development and operating status of 1500°C gas turbine / Mitsubishi Juko Giho 35 (1) : 102 ~ 106
4. [학술지(정기간행물)] - U. Schulz / 2003 / Some recent trends in research and technology of advanced thermal barrier coatings / Aerospace Science and Technology 7 : 73 ~ 78
5. [학술지(정기간행물)] - M. Tanno / 2010 / Influence of asymmetric electrode geometry on an impedance spectrum of a plasma sprayed thermal barrier coating system / Surface & Coatings Technology 204 : 2504 ~ 2509
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