Reactive synthesis for porous TiVAlC ceramics by TiH2,V, Al and graphite powders

Zou, Haoran; Li, Xide; Zhang, Chuo; Wen, Yongfu; Fan, Yiquan; Liu, Yuzuo; Xiong, Lieqiang; Zheng, Xing; Yang, Junsheng

doi:10.1016/j.ceramint.2021.06.245

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…In a preliminary work, we have successfully prepared TiVAlC powders using TiH 2 (99.6% pure), V (99.6% pure), Al (99.5% pure) and C (99.8% pure) powders with an atomic ratio of 1 : 1 : 1.3 : 1 by the activation reaction sintering method at a sintering temperature of 1500 °C, and the specific details about the preparation of the MAX TiVAlC are shown in Zou's study. 23 Then, the fabricated TiVAlC powders were broken by a crushing machine (GJ500-1, Hangzhou, China) and sieved through a mesh 325 sieve.…”

Section: Methodsmentioning

confidence: 99%

2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

et al. 2022

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Section: Methodsmentioning

confidence: 99%

2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

et al. 2022

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“…The discovery of these new phases broadens the field of the MAX phase. Cr 2 TiAlC 2 and V 2 CrAlC 2 can be summarized as a kind of quaternary MAX phase (M′, M′′) n+1 AX n , and the elements in the M position of this kind of quaternary MAX phase are composed of two transition elements, which may have better performance [ 12 ]. Since the new layered quaternary ceramic Mo 2 TiAlC 2 was reported, its highly ordered structure has attracted a lot of attention [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Sintering Temperature Variation on Porous Structure of Mo2TiAlC2 Ceramics

Yang,

Fan,

Tan

et al. 2023

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Mo, TiH2, Al and graphite elemental powders were used as starting materials for the activation reaction sintering process, which was employed to fabricate porous Mo2TiAlC2. The alteration of phase constitution, volume expansion, porosity, pore size and surface morphology of porous Mo2TiAlC2 with sintering temperatures ranging from 700 °C to 1500 °C were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and pore size tester. Both the pore formation mechanism and activation reaction process at each temperature stage were investigated. The experimental results illustrate that the sintered discs of porous Mo2TiAlC2 exhibit obvious volume expansion and pore structure change during the sintering process. Before 1300 °C, the volume expansion rate and porosity increase with the increment of temperature. However, with the sintering temperature above 1300 °C, the volume expansion rate and porosity decrease. At the final sintering temperature of 1500 °C, porous Mo2TiAlC2 with a volume expansion rate of 35.74%, overall porosity of 47.1%, and uniform pore structure was synthesized. The pore-forming mechanism of porous Mo2TiAlC2 is discussed, and the evolution of pressed pores, the removal of molding agents, the decomposition of TiH2, and the Kirkendall effect caused by different diffusion rates of elements in the diffusion reaction are all accountable for the formation of pores.

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“…[1][2][3][4][5]. These applications are due to a set of properties inherent in such materials, among which are a high melting point [6], hardness and strength [7], wear resistance [8], chemical stability [9], and bioinertness [10].…”

Section: Introductionmentioning

confidence: 99%

Formation and Antibacterial Activity of AlOOH/Ag Composite Coating on Macroporous α-Al2O3 Ceramics

et al. 2022

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In this study, the modification of macroporous α-Al2O3 ceramics with AlOOH nanostructures impregnated with silver particles is carried out using bicomponent Al/Ag nanoparticles obtained by the simultaneous electrical explosion of Al and Ag wires. Nanoparticle suspension impregnation of porous ceramics followed by oxidation with water is shown to lead to the formation of a continuous AlOOH nanosheet coating on the ceramic surface, with silver releasing on the surface of nanosheets in the form of individual particles sized 5–30 nm. Modified with AlOOH/Ag nanostructures, macroporous α-Al2O3 pellets with a diameter of 11 mm and a thickness of 5 mm show 100% efficiency for water purification from bacteria with a concentration of 105 CFU/mL for 7.5 min at a flow rate of 6.7 mL/min.

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Reactive synthesis for porous TiVAlC ceramics by TiH2,V, Al and graphite powders

Cited by 9 publications

References 29 publications

2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

Impact of Sintering Temperature Variation on Porous Structure of Mo2TiAlC2 Ceramics

Formation and Antibacterial Activity of AlOOH/Ag Composite Coating on Macroporous α-Al2O3 Ceramics

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Reactive synthesis for porous TiVAlC ceramics by TiH2,V, Al and graphite powders

Cited by 9 publications

References 29 publications

2D TiVCTx layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

2D TiVCTx layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

Impact of Sintering Temperature Variation on Porous Structure of Mo2TiAlC2 Ceramics

Formation and Antibacterial Activity of AlOOH/Ag Composite Coating on Macroporous α-Al2O3 Ceramics

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2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction

2D TiVCT_x layered nanosheets grown on nickel foam as highly efficient electrocatalysts for the hydrogen evolution reaction