Plasma spray–physical vapor deposition toward advanced thermal barrier coatings: a review

Liu, Meijun; Gao, Zhang; Lü, Yong; Han, Jiaqi; Li, Chang-Jiu; Li, Chang‐Jiu; Yang, Guan-Jun

doi:10.1007/s12598-019-01351-x

Cited by 41 publications

(13 citation statements)

References 54 publications

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“…Moreover, pure RETaO 4 , RE 3 TaO 7 , and RETa 3 O 9 have been widely studied, and in order to optimize the thermal properties, doping (including Mg 2+ , 12 Al 3+ , 13 Zr 4+ , 14,15 and Nb 5+ 16-18 ) methods and defect engineering have been shown to be an effective and promising approach. 12,15,[19][20][21][22][23] The results showed that they had lower thermal conductivity and excellent TECs compared with 7-8YSZ. 19 In addition, relevant studies have revealed that RETaO 4 has a ferroelastic domain, 24 which enhances the fracture toughness of materials.…”

Section: Methodsmentioning

confidence: 99%

“…The Birch-Murnaghan equation of state (EOS) with four parameters was employed for the polymorphous YTaO 4 to fit A survey of the published literature shows that process modeling of CMCs has been studied by a number of researchers. Processes that have been modeled include RMI, 15,16 CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltration. 23 Impregnation of alumina matrix in eight-harness satin Nextel 610 fabric has been studied numerically in Ref.…”

Section: Computational Methods and Detailsmentioning

confidence: 99%

“…For T YTaO 4 , the phonon spectrum has imaginary frequencies, indicating that this structure is unstable at 0 K, which is in consistent with the experimental observation that T ( 1) A survey of the published literature modeling of CMCs has been studied by a n ers. Processes that have been modeled CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltrat of alumina matrix in eight-harness satin has been studied numerically in Ref. [ proaches used in the above work general ing the flow of a high viscosity resin thr and modeling the chemical reactions and during processing.…”

Section: Methodsmentioning

confidence: 99%

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First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics

Zhou

Gan

et al. 2021

J Am Ceram Soc.

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Yttrium tantalate ceramics with ferroelasticity are potential candidates for thermal barrier coating (TBC) ceramics. During the phase transition process, there are three main phases with monoclinic (I2/a), monoclinic-prime (P2/a), and tetragonal structures (I 41 /a), and a comprehensive understanding of their thermophysical properties is required. In this study, the thermal and mechanical properties of polymorphous yttrium tantalate (YTaO 4 ) ceramics are systematically investigated under finite temperature by performing first-principles calculations combined with quasi-harmonic approximation. The first-principle study results show that the volume change from M' to T phase is 12.85 Å 3 to 12.95 Å 3 per atom, whereas the T to M is 12.95 Å 3 to 12.84 Å 3 per atom, and the change is less than 1%, showing that this process produces almost no volume change.However, the thermal expansion coefficients (TECs) and Young's modulus vary greatly, the TECs value of M YTaO 4 is about 11.13 × 10 −6 K −1 , which is smaller than T YTaO 4 as the value 12.01 × 10 −6 K −1 , and the Young's modulus values of M, M', and T phases are 140. 34, 156.68, and 123.29 GPa, respectively. Lastly, the calculated O-Ta bond is stronger than the O-O and O-Y bonds according to the mean bond population and average bond length, resulting in a higher modulus. This work will not only expand the internal mechanism of the thermophysical properties of YTaO 4 , but also provides support for the design and application of TBC systems.

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Section: Methodsmentioning

confidence: 99%

Section: Computational Methods and Detailsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics

Zhou

Gan

et al. 2021

J Am Ceram Soc.

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“…Meanwhile, the contents of cobalt, nickel and manganese were lower in both the grains and the grain boundaries than the powders. During the quick melting of the HEA powders, there were burning losses of cobalt, nickel and manganese, which might be related to their relatively low saturated vapor pressure [26]. Oxides were found in the grain boundaries.…”

Section: Microstructure Of the Hea Coatingsmentioning

confidence: 99%

Corrosion Resistance of CoCrFeNiMn High Entropy Alloy Coating Prepared through Plasma Transfer Arc Claddings

Gao

Chen

et al. 2021

Metals

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High entropy alloy attracts great attention for its high thermal stability and corrosion resistance. A CoCrFeNiMn high-entropy alloy coating was deposited on grey cast iron through plasma transfer arc cladding. It formed fine acicular martensite near the grey cast iron, with columnar grains perpendicular to the interface between the grey cast iron substrate and the cladding layer as well as dendrite in the middle part of the coatings. Simple FCC solid solutions present in the coatings which were similar to the powder’s structure. The coating had a microhardness of 300 ± 21.5 HV0.2 when the cladding current was 80 A for the solid solution strengthening. The HEA coating had the highest corrosion potential of −0.253 V when the plasma current was 60 A, which was much higher than the grey cast iron’s corrosion potential of −0.708 V. Meanwhile, the coating had a much lower corrosion current density of 9.075 × 10−7 mA/cm2 than the grey cast iron’s 2.4825 × 10−6 mA/cm2, which reflected that the CoCrFeNiMn HEA coating had much better corrosion resistance and lower corrosion rate than the grey cast iron for single FCC solid solution phase and a relatively higher concentration of Cr in the grain boundaries than in the grains and this could lead to corrosion protection effects.

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“…Plasma spray-physical vapor deposition (PS-PVD) is a unique processing technology and enables highly tailorable functional film and coating with various rare metal elements. PS-PVD technology, which has broad application prospects in the fields of thermal barrier coatings, environmental barrier coatings, oxygen permeable films, electrode film, etc., was summarized by Yang et al [2]. And the progress on the fabrication techniques and mechanical/ thermal properties of thermal/environmental barrier coatings, together with the anti-corrosion performance of these rare earth-based T/EBCs under a condition of molten salts or CMAS, are summarized by Yang et al [3].…”

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confidence: 99%

Editorial for advanced structural ceramics technology and characteristics

2020

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Plasma spray–physical vapor deposition toward advanced thermal barrier coatings: a review

Cited by 41 publications

References 54 publications

First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics

First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics

Corrosion Resistance of CoCrFeNiMn High Entropy Alloy Coating Prepared through Plasma Transfer Arc Claddings

Editorial for advanced structural ceramics technology and characteristics

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Plasma spray–physical vapor deposition toward advanced thermal barrier coatings: a review

Cited by 41 publications

References 54 publications

First‐principles study of thermophysical properties of polymorphous YTaO4 ceramics

First‐principles study of thermophysical properties of polymorphous YTaO4 ceramics

Corrosion Resistance of CoCrFeNiMn High Entropy Alloy Coating Prepared through Plasma Transfer Arc Claddings

Editorial for advanced structural ceramics technology and characteristics

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First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics

First‐principles study of thermophysical properties of polymorphous YTaO₄ ceramics