Effect of powder composition upon plasma spray-physical vapor deposition of 8YSZ columnar coating

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Jianan Yin
  • Xiao Zhang
  • Junli Feng
  • Xiaofeng Zhang
  • Jinbing Song
  • And 8 others
  • Min Liu
  • Dechang Zeng
  • Jie Mao
  • Chunming Deng
  • Changguang Deng
  • Ziqian Deng
  • Ruimin Zhao
  • Shunhua Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)15867-15875
Journal / PublicationCeramics International
Volume46
Issue number10, pt. B
Online published17 Mar 2020
Publication statusPublished - Jul 2020

Abstract

Agglomerated 8YSZ nano-powders for thermal barrier coating (TBC) were prepared by spray drying method. The morphology and diameter of 8YSZ powders were adjusted through controlling the solid content of the suspensions. Using prepared agglomerated 8YSZ nano-powders, columnar-structured coatings were obtained on Ni-based superalloy substrates by plasma spray-physical vapor deposition (PS-PVD). The experimental results proved that the spray dried powders characteristics were related to the solid content of suspensions. During the PS-PVD process, the deposition efficiency of the powders was improved with the increase of powder diameter due to the existence of thermophoresis. Moreover, it can be concluded by mathematical derivations that the top area of the plasma flame was sufficient for powder evaporation.

Research Area(s)

  • Columnar thermal barrier coating, Nano-8YSZ, PS-PVD, Spray drying, Thermophoresis

Citation Format(s)

Effect of powder composition upon plasma spray-physical vapor deposition of 8YSZ columnar coating. / Yin, Jianan; Zhang, Xiao; Feng, Junli; Zhang, Xiaofeng; Song, Jinbing; Liu, Min; Zeng, Dechang; Mao, Jie; Deng, Chunming; Deng, Changguang; Deng, Ziqian; Zhao, Ruimin; Li, Shunhua.

In: Ceramics International, Vol. 46, No. 10, pt. B, 07.2020, p. 15867-15875.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review