Synthesis and optical properties of aluminum nitride nanowires prepared by arc discharge method

Shen, Longhai; Cheng, Taimin; Wu, Lijun; Li, Xuefei; Cui, Qiliang

doi:10.1016/j.jallcom.2007.11.007

Cited by 40 publications

(26 citation statements)

References 30 publications

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“…7) resemble the process of synthesizing AlN nanowires by arc discharge process. 22) During the arc discharge process, Al vapor was generated from a metal Al anode by fast-heating under accelerated electron bombardment, and then reacted with nitrogen gas in high temperature. So, one can predict that the growth of 1-D AlN nanostructures might be significantly promoted under the present condition.…”

Section: Methodsmentioning

confidence: 99%

Combustion synthesis of rod-like AlN nanoparticles

Shi

Radwan

Kirihara

et al. 2008

J. Ceram. Soc. Japan

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Section: Methodsmentioning

confidence: 99%

Combustion synthesis of rod-like AlN nanoparticles

Shi

Radwan

Kirihara

et al. 2008

J. Ceram. Soc. Japan

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“…(a) Figure 3), a TEM image of a typical twig shape can be identified by mixing Al2O3 in powder or particulate form [50] and AlN form showing plate or linear shape [51,52] (Figure 5a). T17ANF shows a typical AlN crystal peak, and the corresponding TEM image also shows a linear shape.…”

Section: Resultsmentioning

confidence: 99%

Studies on Preparation and Characterization of Aluminum Nitride-Coated Carbon Fibers and Thermal Conductivity of Epoxy Matrix Composites

Kim

Lee

Chung³

et al. 2017

Coatings

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Abstract:In this work; the effects of an aluminum nitride (AlN) ceramic coating on the thermal conductivity of carbon fiber-reinforced composites were studied. AlN were synthesized by a wet-thermal treatment (WTT) method in the presence of copper catalysts. The WTT method was carried out in a horizontal tube furnace at above 1500 • C under an ammonia (NH 3 ) gas atmosphere balanced by a nitrogen using aluminum chloride as a precursor. Copper catalysts pre-doped enhance the interfacial bonding of the AlN with the carbon fiber surfaces. They also help to introduce AlN bonds by interrupting aluminum oxide (Al 2 O 3 ) formation in combination with oxygen. Scanning electron microscopy (SEM); Transmission electron microscopy (TEM); and X-ray diffraction (XRD) were used to analyze the carbon fiber surfaces and structures at each step (copper-coating step and AlN formation step). In conclusion; we have demonstrated a synthesis route for preparing an AlN coating on the carbon fiber surfaces in the presence of a metallic catalyst.

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“…Although the α-and β-phases of AlN only differ in the stacking sequence of nitrogen and Al atoms, the preparation of α-phase AlN is much easier than that of the β-phase. If pure Al block is evaporated in N 2 atmosphere by the same arc-discharge method, the crystal of the AlN products is wurtzite structure only [12]. Recently, c-AlN attracts increasing interests and it is expected to possess higher ballistic electron velocities and thermal conductivity because of its higher crystallographic symmetry than that of h-AlN [19].…”

Section: Resultsmentioning

confidence: 99%

“…Recently, AlN nanomaterials are of fresh interests due to their high surface area, low dimensionality and dramatically improved performance for many applications, such as in the field-emission and light-emitting nanodevices [10,11]. Various types of AlN nanostructures with controlled high-aspect-ratio shapes of wires, cones, tips, or belts, have been successfully synthesized by diverse techniques including CVD process [11], direct nitridation [10], or arc-discharge method [12]. In this work, we present a first report of tadpole-shaped (Ni, Al)/AlN nanoparticles synthesized by modified arc-discharge method.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Polarization in Tadpole-Shaped (Ni, Al)/Aln Nanoparticles and Microwave Absorption at High Frequencies

Huang¹,

Xue²,

Lü³

et al. 2011

PIER B

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Abstract-Tadpole-shaped (Ni, Al)/AlN nanoparticles were synthesized via evaporating Ni-Al alloy in a mixed atmosphere of N 2 and H 2 . As a counterpart, the spherical-shaped (Ni, Al)/Al 2 O 3 nanoparticles were also prepared from the same target alloy while in a mixture of Ar and H 2 . The electromagnetic parameters of as-made nanoparticles/paraffin composites were then investigated in the frequency range of 2-18 GHz. Excellent microwave absorption can be obtained for the tadpole-shaped (Ni, Al)/AlN-paraffin composite at high frequencies and in a thin layer, which is thought to be the result of the enhanced polarization in the anisotropic tadpole-shaped nanoparticles. With the increasing of the composite thickness, the frequency of effective reflection loss shifts towards lower frequencies due to an improved impedance match and absorption.

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Synthesis and optical properties of aluminum nitride nanowires prepared by arc discharge method

Cited by 40 publications

References 30 publications

Combustion synthesis of rod-like AlN nanoparticles

Combustion synthesis of rod-like AlN nanoparticles

Studies on Preparation and Characterization of Aluminum Nitride-Coated Carbon Fibers and Thermal Conductivity of Epoxy Matrix Composites

Enhanced Polarization in Tadpole-Shaped (Ni, Al)/Aln Nanoparticles and Microwave Absorption at High Frequencies

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