Formation and stability of metallic glass Cu90?x Ni10P x

Hen, Zhang; Zhaoshen, Tan; Banwei, Zhang; Shu, Xiaolin; Jueqi, Yu

doi:10.1007/bf00724428

Cited by 14 publications

(18 citation statements)

References 8 publications

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“…Our observations support the idea that GB relaxations in polycrystals of smaller grain size may operate more effectively to enhance the thermal stability (6). The Cu samples in this study are the most stable compared with the literature data for Cu (10)(11)(12)(13)(14)(15)(16)(17)(18)(19), including nanograined, deformed coarse-grained, or the metastable amorphous Cu-based alloys with crystallization temperatures in the range of 0.33 to 0.36 T m . For the 10-nm grain-sized sample, we measured nanoindentation hardness to be as high as 4.7 ± 0.2 GPa (fig.…”

supporting

confidence: 85%

“…Our MD simulations also confirmed that the Schwarz D-structure can be obtained by imposing strain at low temperatures. The (18,19,25,26). T m , melting point of Cu; t max , ideal shear strength of Cu (27).…”

Section: E B D F a A A A A A A A A A A A A A A A A A A A A A A A A A ...mentioning

confidence: 99%

“…Literature data for Cu samples prepared through various processes in (6, 10-17, 20-24) are included. Data for amorphous Cu alloys are from(18,19,25,26). T m , melting point of Cu; t max , ideal shear strength of Cu(27).…”

mentioning

confidence: 99%

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Constrained minimal-interface structures in polycrystalline copper with extremely fine grains

Jin

Zhou

et al. 2020

Science

116

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Metals usually exist in the form of polycrystalline solids, which are thermodynamically unstable because of the presence of disordered grain boundaries. Grain boundaries tend to be eliminated through coarsening when heated or by transforming into metastable amorphous states when the grains are small enough. Through experiments and molecular dynamics simulations, we discovered a different type of metastable state for extremely fine-grained polycrystalline pure copper. After we reduced grain sizes to a few nanometers with straining, the grain boundaries in the polycrystals evolved into three-dimensional minimal-interface structures constrained by twin boundary networks. This polycrystalline structure that underlies what we call a Schwarz crystal is stable against grain coarsening, even when close to the equilibrium melting point. The polycrystalline samples also exhibit a strength in the vicinity of the theoretical value.

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supporting

confidence: 85%

Section: E B D F a A A A A A A A A A A A A A A A A A A A A A A A A A ...mentioning

confidence: 99%

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Constrained minimal-interface structures in polycrystalline copper with extremely fine grains

Jin

Zhou

et al. 2020

Science

116

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“…The peaks at 3696 and 3622 cm 21 which were attributed to OAH of E-Kaol existed in the inner layer [ Figure 8(C)]. 28,35,36 The results indicated that most E-Kaol remained in the char after combustion, which was helpful to form a barrier. This structure could effectively restrict the oxygen and volatile gases diffusion during burning process.…”

Section: Thermal Stabilitymentioning

confidence: 99%

Flammability and thermal behaviors of polypropylene composite containing modified kaolinite

Tang

Jiang

et al. 2014

J of Applied Polymer Sci

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Exfoliatied kaolinite (E‐Kaol) was prepared by intercalating DMSO and KAc into kaolinite successively followed by irradiation under ultrasonic. The modified kaolinite was then introduced to polypropylene (PP) by melt blending in order to improve the fire performance of the composite. The flammability and thermal behaviors of PP composite were analyzed by limit oxygen index, vertical burning test, cone calorimeter test, and thermal‐gravimetric analysis, respectively. The microstructure of PP composites was characterized by Fourier‐transformed infrared spectroscopy, X‐ray diffraction, and scanning electron microscope (SEM). It was demonstrated the presence of only 1 phr E‐Kaol could improve the LOI values of PP/MCAPP/ATH composite from 26.4 to 28.0, and decrease the peak value of heat release rate and smoke production rate of the PP/MCAPP/ATH by 60.7% and 39.1%, respectively, compared with that of PP sample. Morphology analysis by SEM showed that E‐Kaol in PP composite was beneficial to forming rigid and compact char structure. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41761.

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“…Reciprocal trade‐off relationship of performances, [ 7 ] however, commonly exists in smart windows, for instance, superb pellucidity (few defects) versus splendid ability of coloration/discoloration (a certain amount of defects), restricting effective coupling in multifunction such as optical‐electrical integrations. By elaborate manipulation of microstructure and composition, certain contradictions could be broken through, aiming to elevate the degree of functional integration.…”

Section: Introductionmentioning

confidence: 99%

Defect Management and Multi‐Mode Optoelectronic Manipulations via Photo‐Thermochromism in Smart Windows

Lin

et al. 2021

Laser & Photonics Reviews

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Smart windows with adjustable transmittance via physical stimuli are eagerly desired for sorts of energy‐saving lighting systems. However, reciprocal trade‐off relationship such as high transparency and coloration/discoloration ability exists in smart windows, not conducive to optical‐electrical coupling and leap in performance. Substituting for common composites utilized in smart windows, here, single transparent ceramic‐based smart windows are reported through composition design and defect management strategies to regulate the optoelectronic performances and break off the contradictions between optical transmittance, photo‐thermochromism and electrical conductivity. By first principles calculations and precisely tuning Er3+, Ba2+, Sr2+ concentrations in non‐stoichiometric Er‐doped (K0.5Na0.5)NbO3‐(Ba, Sr)TiO3, the fabricated ceramics exhibit brilliant transparency and multi‐mode dramatical and reversible modulations of pellucidity, photoluminescence intensity, along with conductivity (over fivefold variation), enabling prominent optoelectronic information storage and modulating capacity in vivid potential applications, such as easy‐readout/erasable optical memorizers, photo‐memristors and anti‐counterfeiting displays.

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Formation and stability of metallic glass Cu90?x Ni10P x

Cited by 14 publications

References 8 publications

Constrained minimal-interface structures in polycrystalline copper with extremely fine grains

Constrained minimal-interface structures in polycrystalline copper with extremely fine grains

Flammability and thermal behaviors of polypropylene composite containing modified kaolinite

Defect Management and Multi‐Mode Optoelectronic Manipulations via Photo‐Thermochromism in Smart Windows

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