Effects of B Addition on Glass Formation, Mechanical Properties and Corrosion Resistance of the Zr66.7−x Ni33.3B x (x = 0, 1, 3, and 5 at.%) Metallic Glasses

Xu, Jing; Niu, Jiazheng; Zhang, Zitang; Ge, Wenjuan; Shang, Caiyun; Wang, Yan

doi:10.1007/s11837-015-1737-5

Cited by 7 publications

(4 citation statements)

References 35 publications

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“…It is quite evident from Figure 3 that the hydrogen solubility increases with increasing Zr content; for a pressure of ~7 bar, which is the maximum applied pressure in the present study, we obtained a value of H/M equal to ~0. 16 30 . The last three compounds were also investigated as a function of temperature in [20].…”

Section: Changes Of the Physical Properties As A Function Of The Zr Cmentioning

confidence: 99%

“…Finally, for the first time, the sorption of a boron containing Ni-Nb-Zr membrane is studied as a function of temperature. The motivation behind the choice of doping with B resides in the recent observation [16] that the addition of 1-5 at% of B to amorphous Zr 66.7−x Ni 33.3 membranes increases their thermal stability, the microhardness, and resistance to corrosion. Moreover, boron can form a large variety of complexes with metals [17] and, therefore, it is expected to increase the hydrogen solubility.…”

Section: Introductionmentioning

confidence: 99%

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New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

et al. 2017

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Amorphous metallic membranes display promising properties for hydrogen purification up to an ultrapure grade (purity > 99.999%). The hydrogen permeability through amorphous membranes has been widely studied in the literature. In this work we focus on two additional properties, which should be considered before possible application of such materials: the propensity to crystallize at high temperatures should be avoided, as the crystallized membranes can become brittle; the hydrogen solubility should be high, as solubility and permeability are proportional. We investigate the crystallization process and the hydrogen solubility of some membranes based on Ni, Nb, and Zr metals, as a function of Zr content, and with the addition of Ta or B. The boron doping does not significantly affect the crystallization temperature and the thermal stability of the membrane. However, the hydrogen solubility for p~7 bar is as high as H/M~0.31 at T = 440 • C and H/M~0.27 at T = 485 • C. Moreover, the membrane does not pulverize even after repeated thermal cycles and hydrogenation processes up to 485 • C and 7 bar, and it retains its initial shape.

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Section: Changes Of the Physical Properties As A Function Of The Zr Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

et al. 2017

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“…The optimum sodium loading is dependent on the mixed metal oxides used. For example, Xu et al 165 found 1.5 wt% sodium as the optimum loading ensuring higher activity compared to that over undoped Co-Al-O x . A similar value (1.4 wt%) was reported for Na/Co-Mn-Al-O x as one of the most active catalysts.…”

Section: Catalysis Science and Technology Minireviewmentioning

confidence: 99%

Nitrogen oxide removal over hydrotalcite-derived mixed metal oxides

Jabłońska

Palkovits

2016

Catal. Sci. Technol.

102

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Rigorous regulations of nitrogen oxide emissions require the development of technologies for their removal from exhaust gases. Implementation of appropriate catalysts can potentially promote NO x (NO, NO 2 ) or N 2 O removal in shorter reaction time and under milder operation conditions. However, several challenges have to be faced upon trying to address nitrogen oxide pollution with catalytic systems such as sufficient catalytic performance, suitable operational temperatures and catalyst poisoning. The flexible structure of hydrotalcite-like compounds offers the opportunity to introduce various metals into the materials to provide active and selective catalysts for NO x and N 2 O removal. This minireview summarizes the abatement of nitrogen oxides by using hydrotalcite-derived mixed metal oxides. At first, a brief overview on the general features of hydrotalcite-originated mixed metal oxides and their applications in catalysis is provided. Later on, the application of mixed metal oxides as SCR catalysts with both ammonia (NH 3 -SCR) and hydrocarbons (HC-SCR) as reducing agents is discussed. An overview of the mixed metal oxides applied as catalysts for NO x storage/reduction (NSR) and further in the simultaneous removal of NO x and soot particles is provided. Additionally, this review discusses mixed metal oxides as efficient catalysts for catalytic decomposition (deN 2 O) and selective catalytic reduction of N 2 O (N 2 O-SCR). Finally, the remaining challenges and future trends are highlighted.

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“…[4] Researchers have improved the GFA and developed new BMGs by adding small amounts of alloying element(s) starting from the best binary glass-forming alloys. [5][6][7][8] For example, Figueroa et al [9] found that the GFA of Cu 55 Hf 45 alloys could be maximized with the addition of 2.0-at.% Si, and that the supercooled liquid region was increased by 15 K relative to the matrix alloy. Cai et al [6] revealed that the substitution of Zr in Cu 50 Zr 50 alloy by Al could remarkably increase the GFA, and the best glass-forming alloy was Cu 50 Zr 47 Al 3 .…”

Section: Introductionmentioning

confidence: 99%

Heredity of clusters in the rapidly cooling processes of Al-doped Zr₅₀Cu₅₀ melts and its correlation with the glass-forming ability*

Wen¹,

Deng²,

Gao³

et al. 2021

Chinese Phys. B

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The heredity of clusters in rapidly cooled (Zr50Cu50)100 – x Al x melts and its correlation with glass-forming ability (GFA) are studied via molecular dynamics simulations. Pair distribution function and the largest standard cluster (LSC) are adopted to characterize the local atomic structures in the (Zr50Cu50)100 – x Al x systems. The [12/555] icosahedra and their medium-range order (IMRO) play an important role in forming (Zr50Cu50)100 – x Al x metallic glasses (MGs). The fraction of [12/555], the number of IMRO, and the maximum size of IMRO in MGs increase significantly with increasing x. A tracking study further reveals that the configuration heredity of icosahedral clusters starts from supercooled liquids. No direct correlation exists between the GFA and the onset temperature of continuous or stated heredity. Instead, a larger hereditary supercooled degree of icosahedra matches with better GFA of Al-doped Zr50Cu50 alloys.

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Effects of B Addition on Glass Formation, Mechanical Properties and Corrosion Resistance of the Zr66.7−x Ni33.3B x (x = 0, 1, 3, and 5 at.%) Metallic Glasses

Cited by 7 publications

References 35 publications

New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

Nitrogen oxide removal over hydrotalcite-derived mixed metal oxides

Heredity of clusters in the rapidly cooling processes of Al-doped Zr₅₀Cu₅₀ melts and its correlation with the glass-forming ability*

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Effects of B Addition on Glass Formation, Mechanical Properties and Corrosion Resistance of the Zr66.7−x Ni33.3B x (x = 0, 1, 3, and 5 at.%) Metallic Glasses

Cited by 7 publications

References 35 publications

New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

New Studies of the Physical Properties of Metallic Amorphous Membranes for Hydrogen Purification

Nitrogen oxide removal over hydrotalcite-derived mixed metal oxides

Heredity of clusters in the rapidly cooling processes of Al-doped Zr50Cu50 melts and its correlation with the glass-forming ability*

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Product

Resources

About

Heredity of clusters in the rapidly cooling processes of Al-doped Zr₅₀Cu₅₀ melts and its correlation with the glass-forming ability*