Laser sintering of electrophoretically deposited (EPD) Ti3SiC2 MAX phase coatings on titanium

Galvin, T.M.; Hyatt, Neil C.; Rainforth, W.M.; Reaney, Ian M.; Shepherd, D.

doi:10.1016/j.surfcoat.2019.03.031

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…The coatings were not dense and exhibited a (00l) preferred orientation. In addition, porous Ti 3 SiC 2 coatings were deposited by EPD at 10V using a 4.3 wt% solid loading at pH 9 251 . Afterwards, the thin coating was rapidly densified using a 3D printing laser, but only some Ti 3 SiC 2 remains after sintering.…”

Section: Structuresmentioning

confidence: 99%

Processing of MAX phases: From synthesis to applications

2020

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MAX phases are well-known and established due to their unique combination of properties and versatility, but this family of materials has experienced several ups and downs during its short history, including even being referred to with different names. Extensive work was carried out in the early 1960s in Vienna (Austria) by Wolfgang Jeitschko and Hans Nowotny, who discovered in more than 100 new carbides and nitrides. 1 Among them, they reported a new class of ternary systems, based on a transition metal (M), a metalloid (Me), and carbon (C), with a similar crystal structure to carbon-stabilized β-manganese phase, that is, Mo 3 Al 2 C. They were classified as "H-Phases" due to their hexagonal crystal structure, and some compositions

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Section: Structuresmentioning

confidence: 99%

Processing of MAX phases: From synthesis to applications

2020

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“…Chen et al [16] investigated the chemical reactions and atomic diffusion between Ti 3 SiC 2 and the enhanced phase, and they found that the decomposition of Ti 3 SiC 2 and the diffusion of Si atoms played an important role in the combination of the composites. Due to the improvement of the property of the composites by adding enhanced phases, the as-obtained composites had good industrial applications [17][18][19]. Thus, it can be seen that the purpose of changing phase and increasing mechanical properties can be achieved by adding reinforcement phase and regulating sintering parameters, which makes the original excellent tribological properties of Ti 3 SiC 2 better applied to more complex environments.…”

Section: Introductionmentioning

confidence: 99%

Effect of full melt temperature sintering and semi-melt heat preservation sintering on microstructure and mechanical properties of Ti₃SiC₂/Cu composites

Chen,

Zhang,

Liu

et al. 2024

Mater. Res. Express

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The influence of sintering parameters on the microstructure, phase composition and mechanical property of the Ti3SiC2/Cu composites sintered by spark plasma sintering technique was investigated and the related sintering mechanism was clarified in detail. Results indicated that during the heating process, one part of the high energy adsorbed by the composites let Cu melt and fill the gaps inside the composites. Meanwhile, there’s different molten condition about Cu duel to different heating temperature that cause Cu fill in the most space between Ti3SiC2 particles. The other part of the energy caused to the local high temperature, contributing for the chemical reaction and the formation of TiCx and Cu3Si. Therefore, at the same heating rate, the composites showed better mechanical property and higher density with a longer heating time. The heating stage played an important role in the change of the mechanical property, microstructure and volume of the composites. During the holding stage, because the amount of the reactants significantly decreased, the related chemical reaction got slow and the energy needed during this stage was lower than that during the heating stage. And the particle of Ti3SiC2 need more time for moving to the space of Cu. Therefore, the higher the holding temperature, the more significant was the diffusion of the phases. The more uniform the phases, the higher was the density. When heating temperature(higher than hoding tempreture) cause Cu complete melt and holding temperature keep the Cu in semi-melt，there will be a more effective sintering method.

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“…A post-EPD process is required to densify the coating and improve its mechanical properties, together with substrate adhesion. Typically, this post-EPD process is a heat treatment intended for the sintering of the coating; however, some precautions must be taken to avoid defects within the coating or at the interface with the substrate [21]. The sintering temperatures for YSZ are estimated to be 1400 • C or higher; moreover, shrinking the coatings through the sintering process may result in crack formation.…”

Section: Introductionmentioning

confidence: 99%

A Direct Laser Sintering Approach for the Electrophoretic Deposition Overlay of Yttria-Stabilized Zirconia on the Surface of a Thermal Barrier Coating System

Ali Bash,

Ajeel,

Abbas

et al. 2023

Coatings

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The laser sintering process and modification of yttria-stabilized zirconia (YSZ) coatings subjected to electrophoretic deposition (EPD) on YSZ air-plasma-sprayed (APS) thermal barrier coatings (TBCs) were investigated. A Ni-based superalloy was plasma-sprayed using yttria-stabilized zirconia (YSZ) to create a thermal barrier coating with a 400 μm thickness. The electrophoretic deposition (EPD) technique was used to deposit the nanopowder of YSZ on the surface of YSZ TBCs. In this study, a technology based on the direct sintering of a green EPD layer using a laser beam was employed. The best conditions for the deposition overlay of the YSZ coating using a DC current were obtained with an applied voltage of 40 V, deposition time of 5 min, and suspension concentration of 10 g/L. Iodine was added to the solutions as a stabilizing agent. To overcome the problems of high sintering temperatures, laser sintering was adopted as a new approach. The microstructures of all the specimens were studied using field emission scanning electron microscopy (FESEM) with energy-dispersive X-ray spectroscopy (EDS) analysis. Surface roughness was investigated using atomic force microscopy (AFM) analysis and the central line average (CLA). The direct laser sintering (DLS) process for the EPD overlay on the surface of the TBCs caused a reduction in surface roughness and porosity, and improvements in the microstructural and mechanical properties of the surface coatings were observed.

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Laser sintering of electrophoretically deposited (EPD) Ti3SiC2 MAX phase coatings on titanium

Cited by 10 publications

References 23 publications

Processing of MAX phases: From synthesis to applications

Processing of MAX phases: From synthesis to applications

Effect of full melt temperature sintering and semi-melt heat preservation sintering on microstructure and mechanical properties of Ti₃SiC₂/Cu composites

A Direct Laser Sintering Approach for the Electrophoretic Deposition Overlay of Yttria-Stabilized Zirconia on the Surface of a Thermal Barrier Coating System

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Laser sintering of electrophoretically deposited (EPD) Ti3SiC2 MAX phase coatings on titanium

Cited by 10 publications

References 23 publications

Processing of MAX phases: From synthesis to applications

Processing of MAX phases: From synthesis to applications

Effect of full melt temperature sintering and semi-melt heat preservation sintering on microstructure and mechanical properties of Ti3SiC2/Cu composites

A Direct Laser Sintering Approach for the Electrophoretic Deposition Overlay of Yttria-Stabilized Zirconia on the Surface of a Thermal Barrier Coating System

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Effect of full melt temperature sintering and semi-melt heat preservation sintering on microstructure and mechanical properties of Ti₃SiC₂/Cu composites