Effect of scandia content on the thermal shock behavior of SYSZ thermal sprayed barrier coatings
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【文章作者】Loghman-Estarki, M. R.;Razavi, R. Shoja;Jamali, H.;Ashiri, R. |
【文章摘要】 Nanostructured 4SYSZ (scandia (3.5 mol%) yttria (0.5 mol%) stabilized zirconia) and 5.5 SYSZ (5 mol% scandia and 0.5 mol% yttria) thermal barrier coatings (TBCs) were deposited on nickel-based superalloy using NiCrAIY as the bond coat by plasma spraying process. The thermal shock response of both as sprayed TBCs was investigated at 1000 degrees C. Experimental results indicated that the nanostructured 5.5SYSZ TBCs have better thermal shock performance in contrast to 4SYSZ TBCs due to their higher tetragonal phase content and higher fracture toughness of this coating. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
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【卷】42 【ISSUE】9 【ISSUEID】815C0073
【文章期份】2016
【发布日期】2016/8/11 17:04:14
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