Nanostructured Al2O3-YAG-ZrO2 ternary eutectic components prepared by laser engineered net shaping

Fan, Zhiqi; Zhao, Yitian; Tan, Qiyang; Mo, Ning; Zhang, Mingxing; Lu, Minghui; Huang, Han

doi:10.1016/j.actamat.2019.03.020

Cited by 101 publications

(42 citation statements)

References 63 publications

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“…The higher fluidity increased the powder absorbability of the molten pool, which was also helpful for generating sufficient overlaps. A similar result was reported in the fabrication of zirconia-alumina ceramics using an LDED process [44].…”

Section: Bonding Qualitysupporting

confidence: 84%

Fabrication of a TiC-Ti Matrix Composite Coating Using Ultrasonic Vibration-Assisted Laser Directed Energy Deposition: The Effects of Ultrasonic Vibration and TiC Content

Zhang

Wang

et al. 2021

Metals

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Titanium and its alloys exhibit superior properties of high corrosion resistance, an excellent strength to weight ratio and outstanding stiffness among other things. However, their relatively low hardness and wear resistance limit their service life in high-performance applications of structure parts, gears and bearings, for example. The fabrication of a ceramic reinforced titanium matrix composite (TMC) coating could be one of the solutions to enhance the microhardness and wear resistance. Titanium carbide (TiC) is a preferable candidate due to the advantages of self-lubrication, low cost and a similar density and thermal expansion coefficient with titanium. The fabrication of TiC-TMC coatings onto titanium using a laser directed energy deposition (LDED) process has been conducted. The problems of TiC aggregation, low bonding quality and the generation of fabrication defects still exist. Considering ultrasonic vibration could generate acoustic steaming and transient cavitation actions in melted materials, which could homogenize the distribution of reinforcement materials and promote the dissolution of TiC into liquid titanium. In this study, for the first time, we investigate the ultrasonic vibration-assisted LDED of TiC-TMC coatings. The effects of ultrasonic vibration and reinforcement content on the phase compositions, reinforcement aggregation, bonding quality, fabrication defects and mechanical properties (including microhardness and wear resistance) of LDED deposited TiC-TMC coatings have been investigated. With the assistance of ultrasonic vibration, the aggregation of TiC was reduced, the porosity was decreased, the defects in the bonding interface were reduced and the mechanical properties including microhardness and wear resistance were increased. However, the excessive TiC content could significantly increase the TiC aggregation and manufacturing defects, resulting in the reduction of the mechanical properties.

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Section: Bonding Qualitysupporting

confidence: 84%

Fabrication of a TiC-Ti Matrix Composite Coating Using Ultrasonic Vibration-Assisted Laser Directed Energy Deposition: The Effects of Ultrasonic Vibration and TiC Content

Zhang

Wang

et al. 2021

Metals

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“…2(a)) correspond to α-Al2O3, YAG and cubic ZrO2 phases as is also evident from Figs. 2(b-e) and Table . 1 [17]. Besides, from Figs.…”

Section: Nanostructured Az-yag Fabricated Using Laser Engineered Net ...mentioning

confidence: 83%

On the advanced microstructural characterisation of additively manufactured alumina-zirconia based eutectic ceramics: Overview and outlook

Saha¹

2023

Preprint

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Recently, there have been a number of reports on the fabrication of Alumina-Zirconia (Al2O3-ZrO2 (AZ))-based eutectic ceramics using laser additive manufacturing (AM) techniques owing to the exceptional creep and oxidation resistance coupled with excellent microstructural stability in these materials. Moreover, a number of interesting microstructural features (in these materials) have been reported to be formed by the variation of process parameters (especially, laser scanning speed) associated with the aforementioned AM techniques. The present review provides an overview of the present state of research in the area of laser AM AZ-based eutectic ceramics and highlights the challenges and future outlooks in this avenue of research. In addition, the requirement of employing correlative microstructural characterisation in these materials has been highlighted in the outlooks section.

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“…2(a)) correspond to α-Al2O3, YAG and cubic ZrO2 phases respectively, is also evident from Figs. 2(b-e) and Table . 1 [17]. Besides, from Figs.…”

Section: Nanostructured Az-yag Fabricated Using Laser Engineered Net ...mentioning

confidence: 83%

On the advanced microstructural characterisation of additively manufactured alumina-zirconia based eutectic ceramics: Overview and outlook

Saha

2022

Preprint

View full text Add to dashboard Cite

show abstract

Nanostructured Al2O3-YAG-ZrO2 ternary eutectic components prepared by laser engineered net shaping

Cited by 101 publications

References 63 publications

Fabrication of a TiC-Ti Matrix Composite Coating Using Ultrasonic Vibration-Assisted Laser Directed Energy Deposition: The Effects of Ultrasonic Vibration and TiC Content

Fabrication of a TiC-Ti Matrix Composite Coating Using Ultrasonic Vibration-Assisted Laser Directed Energy Deposition: The Effects of Ultrasonic Vibration and TiC Content

On the advanced microstructural characterisation of additively manufactured alumina-zirconia based eutectic ceramics: Overview and outlook

On the advanced microstructural characterisation of additively manufactured alumina-zirconia based eutectic ceramics: Overview and outlook

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