EVALUATION OF THERMAL INSULATION CAPABILITY OF PLASMA-SPRAYED ZIRCONIA BASED THERMAL BARRIER COATINGS

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JAMALI H.; MOZAFARINIA R.; RAZAVI R.SH.; AHMADI PIDANI R.

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Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2012 | Volume:- | Issue:14 Page(s): 77-87

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Title

EVALUATION OF THERMAL INSULATION CAPABILITY OF PLASMA-SPRAYED ZIRCONIA BASED THERMAL BARRIER COATINGS

Author(s)

JAMALI H. | MOZAFARINIA R. | RAZAVI R.SH. | AHMADI PIDANI R. | Issue Writer Certificate

Keywords

THERMAL BARRIER COATINGQ2

STABILIZED ZIRCONIAQ2

ATMOSPHERIC PLASMA SPRAYQ2

MICROSTRUCTUREQ2

NANOSTRUCTUREQ3

THERMAL INSULATION CAPABILITYQ3

Abstract

Zirconia based THERMAL BARRIER COATINGs (TBCs) are extensively used in gas turbines engines to protect and provide thermal insulation for hot-section metal components. Consequently, the key parameter of these coatings is low thermal conductivity. The present paper deals with evaluation of effect of the MICROSTRUCTURE and stabilizer type on zirconia based TBCs THERMAL INSULATION CAPABILITY. For this scope, three type of coatings including conventional yttria STABILIZED ZIRCONIA (YSZ), conventional ceria and yttria STABILIZED ZIRCONIA (CYSZ) and NANOSTRUCTUREd yttria STABILIZED ZIRCONIA have been prepared by ATMOSPHERIC PLASMA SPRAYing (APS) on NiCoCrAlY-coated Inconel 738 substrates. Microstructural evaluation and phase analysis were performed using field emission scanning electron microscope (FESEM) and X-ray diffractometry (XRD) respectively. Results revealed that with employing of ceria stabilizer and fabrication of nano-structure in coating, the THERMAL INSULATION CAPABILITY of zirconia based TBCs were enhanced.

Cites

بررسی اتلاف حرارتی پوشش سد حرارتی نانو ساختار ساخته شده به روش EPD

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APA: Copy

JAMALI, H., MOZAFARINIA, R., RAZAVI, R.SH., & AHMADI PIDANI, R.. (2012). EVALUATION OF THERMAL INSULATION CAPABILITY OF PLASMA-SPRAYED ZIRCONIA BASED THERMAL BARRIER COATINGS. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, -(14), 77-87. SID. https://sid.ir/paper/121070/en

Vancouver: Copy

JAMALI H., MOZAFARINIA R., RAZAVI R.SH., AHMADI PIDANI R.. EVALUATION OF THERMAL INSULATION CAPABILITY OF PLASMA-SPRAYED ZIRCONIA BASED THERMAL BARRIER COATINGS. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2012;-(14):77-87. Available from: https://sid.ir/paper/121070/en

IEEE: Copy

H. JAMALI, R. MOZAFARINIA, R.SH. RAZAVI, and R. AHMADI PIDANI, “EVALUATION OF THERMAL INSULATION CAPABILITY OF PLASMA-SPRAYED ZIRCONIA BASED THERMAL BARRIER COATINGS,” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. -, no. 14, pp. 77–87, 2012, [Online]. Available: https://sid.ir/paper/121070/en

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