Study of the Nanocomposite Mo2C(1-x)-TiC(x)-SWCNTs by Field Actived Sparck Plasma Sintering Process

Noudem, Jacques; Mouyane, None Mohamed; Bernard, J.; Guhel, Y.; Houivet, David; Bendjemil, Badis

doi:10.14302/issn.2689-2855.jan-20-3263

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…The ball-milled intermetallic nanocomposites were prepared by wet milling in a hydrous alcohol for 3 hours. Finally, the powder mixtures with dispersed SWCNTs were dried by rotary evaporator under vacuum condition and were sieved to 70 mesh [49][50].…”

Section: Mechanical Alloyingmentioning

confidence: 99%

Microplastic removal via physical and chemical methods

Bendjemil

Safi

Kouahla

et al. 2023

Theo. NANOTECHNOLOGY

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The synthesis of β-type phase NbxTi (x= 50 at%) / SWCNTs (Single Walled Carbon Nanotubes) intermetallic matrix nanocomposite by mechanical alloying to ensure the effective distribution of (SWCNTs) within the matrix. It has been stated by several researchers that during ball-milling of NbxTi (x =50 at%) powder mixtures, Nb-Ti intermetallic compound formation occurs either gradually along milling time of mechanical allowing (MA), or suddenly through amechanically self-propagating reaction (MSPR), which occurs after a ignition time of MA. For this purpose, 0.4and 0.8 at% of SWNTs was added to the powder mixture after the completion of reactionbetween Nb and Ti. The obtained powders Nb50Ti intermetallic compound mixed with SWCNTs powder and then was also ball-milled. Bulk samples were compacted and then sintered by (FAST-SPS-FCT) method (Field Assisted Sintering Technics-Sparck Plasma Sintering- Furnace, Advanced Ceramics for High-Temperature) at the temperature range (1273-1473 °K) with some time that retained the integrity of SWNTs in the intermetallic matrix.Structural and mechanical and vibronic changes of the nanocomposites were investigated by X-ray diffractometery (XRD). Field emission scanning electron microscopy (FESEM) micrographs showed that the offered MA approach caused the SWNTs to be uniformly embedded in the in situ synthesized NbTi intermetallic matrix. Meanwhile better distribution of SWCNTs resulted in higher density of FAST-SPS-FCT bulk nanocomposite as well higher hardness up to 2.75GPa compared to 2.4 of Nb50Ti intermetallic alloy obtained after MA time. The total porosity, compressive strength, and compressive elastic modulus of the FAST-SPS-FCT manufactured material were determined as 7%, 600 MPa, and 120 MPa, respectively. The alloy’s and its intermetallic nanocomposite have Young’s elastic modulus is comparable to that of healthy cancellous bone which makes it applicable in the biomedical field. The in vitro biocomptability will be performed in the near future. The comparable results for the FAST-SPS-FCT nanocomposites were 3%, 650 MPa, and 130 MPa. The alloy’s elastic modulus is comparable to that of healthy cancellous bone. This difference in mechanical properties results from different porosity and phase composition of the bot β-phase NbxTi (x= 50 at%) and NbxTi (x= 50 at%)/SWCNTs intermetallic matrix nanocomposite. More other nanotechnologies applications of the nanocomposite will be focused in the study of the superconducting type I for the ITER Poloidal Field Coils by measuring of Jc (T, B) characteristics.

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Section: Mechanical Alloyingmentioning

confidence: 99%

Microplastic removal via physical and chemical methods

Bendjemil

Safi

Kouahla

et al. 2023

Theo. NANOTECHNOLOGY

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“…Finally, the powder mixtures with dispersed SWCNTs were dried by rotary evaporator under vacuum condition and were sieved to 70 mesh [49,50].…”

Section: Mechanical Alloyingmentioning

confidence: 99%

Manufacturing of β-type NbXTi (X=50 at%)/SWCNTs Matrix Nanocomposites by FAST-SPS: For Metallic Orthopedic Components and Superconductor Magnets in ITER

2022

Nanotechnol Adv Mater Sci

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Ti-based alloy, it is desirable to reduce its E to that of healthy bone (4-30 GPa) while maintaining its high strength and good plasticity [1][2][3][4][5][6][7][8]. Two approaches have been taken to achieve this goal. One is the production of metastable β type phase wrought niobium-titanium (Nb-Ti) alloys (for example, Nb50Ti), but the reported minimum value of E (60-62 GPa) is too high [9,10].Alternatively, porous Nb-Ti alloys, having a microstructure similar to that of cancellous bone, have been produced. Nb-Ti Intermetallic compound has been recognized as one of high temperature structural materials due to excellent physical, superconductivity and mechanical

show abstract

Study of the Nanocomposite Mo2C(1-x)-TiC(x)-SWCNTs by Field Actived Sparck Plasma Sintering Process

Cited by 2 publications

References 18 publications

Microplastic removal via physical and chemical methods

Microplastic removal via physical and chemical methods

Manufacturing of β-type NbXTi (X=50 at%)/SWCNTs Matrix Nanocomposites by FAST-SPS: For Metallic Orthopedic Components and Superconductor Magnets in ITER

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