Processing of porous β-type Ti74Nb26 alloys for biomedical applications

Aydoğmuş, Tarık; Hameed, Dana Kareem; Kelen, Fevzi

doi:10.1016/j.jallcom.2021.159737

Cited by 14 publications

(4 citation statements)

References 32 publications

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“…Porous intermetallic alloys have been considered valuable engineering materials across various industrial sectors, particularly in exhaust gas adsorption and filtration applications [1][2][3][4]. However, their utilization in high-temperature exhaust gas filtration has been limited due to inherent susceptibility to corrosion, burning, and oxidation [5][6][7][8][9][10]. Recently, there has been growing interest in porous TiAl alloys as promising candidates for filtering dust particles from exhaust gases at high temperatures [11,12].…”

Section: Introductionmentioning

confidence: 99%

Influence of Powder Size on Pore Characteristics and Intermetallic Phase Kinetics in Porous Ti-Al Alloys

Kayani,

Ajmal,

Kim

et al. 2024

Crystals

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This study investigates the impact of varying powder size on porosity, pore parameters, and intermetallic phase reaction during the reactive sintering of porous TiAl alloys. Ti52Al48 alloys were prepared using coarse (200 mesh) and fine (325 mesh) Ti powders through elemental powder metallurgy and were subsequently sintered at different temperatures, 600 and 1200 °C. Our findings reveal a consistent pore morphology and intermetallic phase microstructure across both alloys. However, samples containing fine Ti powder exhibited a higher number density of small pores compared to those incorporating coarse Ti powders. Additionally, alloys prepared with fine Ti powders demonstrated a higher porosity than those prepared with coarse powders. Consequently, fine Ti powder promoted enhanced diffusion between Ti and Al during sintering, as reflected by the lower onset temperature and enthalpy of intermetallic reaction during sintering.

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Section: Introductionmentioning

confidence: 99%

Influence of Powder Size on Pore Characteristics and Intermetallic Phase Kinetics in Porous Ti-Al Alloys

Kayani,

Ajmal,

Kim

et al. 2024

Crystals

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“…The application of pressure during pressure-assisted sintering processes, such as HP, has been shown to be effective in reducing matrix microporosity in the manufacture of Ti [47,48]. In prior research [12], an approach to producing porous structures that exhibit bimodal microstructure was carried out combining hot-pressing and the space-holder technique using NH 4 HCO 3 as the pore former.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Synergetic Effects of Mechanical Milling and Hot Pressing on Bimodal Microstructure and Tribo-Mechanical Behavior in Porous Ti Structures

Chávez-Vásconez,

Arévalo,

Torres

et al. 2023

Preprint

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“…The immense potential in energy conversion and storage, adsorption and separation applications has generated significant interest in the design and synthesis of hierarchically porous materials [1][2][3][4][5]. Hierarchically porous materials have many unique features, such as tunable porous structures, controllable macroscopic morphologies, a large surface area and an easily functionalizable surface, making them some of the most promising engineering structural materials [6][7][8][9][10][11][12][13]. High-temperature flue gases discharged from electric power, petroleum, chemical and metallurgical operations have the characteristics of high temperature (above 800 • C), high oxygen content, high sulfur content, high nitrogen content and large amounts of dust content [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Ti-40Al-10Nb-10Cr Porous Microfiltration Membrane with Hierarchical Pore Structure for Particulate Matter Capturing from High-Temperature Flue Gas

et al. 2022

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TiAl-based porous microfiltration membranes are expected to be the next-generation filtration materials for potential applications in high-temperature flue gas separation in corrosive environments. Unfortunately, the insufficient high-temperature oxidation resistance severely limits their industrial applications. To tackle this issue, a Ti-40Al-10Nb-10Cr porous alloy was fabricated for highly effective high-temperature flue gas purification. Benefited from microstructural changes and the formation of two new phases, the Ti-40Al-10Nb-10Cr porous alloy demonstrated favorable high-temperature anti-oxidation performance with the incorporation of Nb and Cr high-temperature alloying elements. By the separation of a simulated high-temperature flue gas, we achieved an ultra-high PM-removal efficiency (62.242% for PM<2.5 and 98.563% for PM>2.5). These features, combined with our experimental design strategy, provide a new insight into designing high-temperature TiAl-based porous materials with enhanced performance and durability.

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Processing of porous β-type Ti74Nb26 alloys for biomedical applications

Cited by 14 publications

References 32 publications

Influence of Powder Size on Pore Characteristics and Intermetallic Phase Kinetics in Porous Ti-Al Alloys

Influence of Powder Size on Pore Characteristics and Intermetallic Phase Kinetics in Porous Ti-Al Alloys

Understanding the Synergetic Effects of Mechanical Milling and Hot Pressing on Bimodal Microstructure and Tribo-Mechanical Behavior in Porous Ti Structures

Ti-40Al-10Nb-10Cr Porous Microfiltration Membrane with Hierarchical Pore Structure for Particulate Matter Capturing from High-Temperature Flue Gas

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