Differential scanning calorimetry (DSC) analysis of the AlN p /Al composite system was conducted and the results show that there is an exothermal reaction between Al and BN starting at 580 °C in
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A series of experiments of cubic boron nitride (cBN)-Al 2 O 3 composites was conducted in NaCl environment under a pressure of 5 GPa at 1200–1650 °C using a Chinese multi-anvil high-pressure
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The structure of Al/BN composite powders and their solid solution formation during planetary ball milling were studied by a number of researchers [, , ]. It is well documented that high energy planetary ball milling can lead to the dissolution of BN in the Al matrix as a solid solution.
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Composite powders were produced through high-energy ball milling to provide leads to the formation of boron nitride (BN) 171903-2 Beason et al. Appl. Phys
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The main reason for the grain refinement of Al/BN composite powder can be the decomposition of hexagonal boron nitride to boron and nitrogen during the high-energy ball milling process . The high-energy milling increases defects in the Al matrix; subsequently, the boron and nitrogen atoms created by the decomposition of the boron nitride are
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Composite powders were produced through high-energy ball milling to provide leads to the formation of boron nitride (BN) 171903-2 Beason et al. Appl. Phys
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One important condition of the chemical interaction between BN and Al is their homogeneous distribution in the material bulk during high-energy mechanical stirring in a planetary mill and accompanying charge activation. The AlB 2 particles were isolated inside the aluminum grains, and their size varied from 0.25 to 1 μm.
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Du et al. showed that in synthesizing of Al/BN composite by high energy ball milling, hot press, and subsequent hot extrusion, BN is not stable and reacts with Al to produce AlN and AlB 2 phases. Recently, structural evaluation of Al/BN composite during mechanical alloying was studied by Xia et al. [7] .
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Povstugar et al. [51] investigated the formation of Mg-BN nanocomposites through MM of Mg and BN powders at different doses of energy supplied. The dose D (J/g) of energy supplied was defined as D
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2/TiN composite powder could be obtained by high-energy ball milling process. Here we report on the reactions in the 3:2 Ti/BN starting composition in high energy ball milling processing and sequent heat treatment. 2. EXPERIMENTAL PROCEDURE The raw materials used in this study were 99.9% pure Ti powder with a sieve size
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The U.S. Department of Energy''s Office of Scientific and Technical Information Wear resistance and microstructural properties of Ni–Al/h-BN/WC–Co coatings deposited using plasma spraying (Journal Article) | OSTI.GOV
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The structure of Al/BN composite powders and their solid solution formation during planetary ball milling were studied by a number of researchers [, , ]. It is well documented that high energy planetary ball milling can lead to the dissolution of BN in the Al matrix as a solid solution.
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Povstugar et al. [51] investigated the formation of Mg-BN nanocomposites through MM of Mg and BN powders at different doses of energy supplied. The dose D (J/g) of energy supplied was defined as D
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boron nitride (BN) coating onto the surface of a carbon fiber (CF) by in situ hybridization. The structure, chemical composition, morphology, high-temperature resistance, EM characteristics and EM wave absorption of the composite materials were analyzed. The composite materials contained CFs, and Fe 3O
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Composite powders were produced through high-energy ball milling to provide leads to the formation of boron nitride (BN) 171903-2 Beason et al. Appl. Phys
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A series of experiments of cubic boron nitride (cBN)-Al 2 O 3 composites was conducted in NaCl environment under a pressure of 5 GPa at 1200–1650 °C using a Chinese multi-anvil high-pressure
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Figure 2 shows TEM images of (a) pure Al and (b-d) Al/BNNS composites. During high-energy ball milling, Al grains are refined from 600 to 45 nm by dynamic recrystallization that involves an
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In this study, mechanically alloyed Al-12Si/TiB2/h-BN composite powder was deposited onto aluminum substrates by atmospheric plasma spraying. Wear performance of the coating was investigated with respect to the structural evolution of the composite powder coating. Non-lubricated ball-on-disk tests were used to examine the wear resistance of the coatings. The worn surfaces were examined using
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Thus the main aim of the present study was to conduct tensile tests on Al/BN composites for a wide range of nano- and micro-BN particle contents, from 0.5 to 10.0 wt.%, at room and elevated temperatures (500 ºC). Furthermore, we compared mechanical properties of Al/BN composites depending on the type and morphology of BN additives.
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The structure of Al/BN composite powders and their solid solution formation during planetary ball milling were studied by a number of researchers [, , ]. It is well documented that high energy planetary ball milling can lead to the dissolution of BN in the Al matrix as a solid solution.
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The U.S. Department of Energy''s Office of Scientific and Technical Information BN/Al composite formation by high-energy ball milling (Journal Article) | OSTI.GOV skip to main content
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The main reason for the grain refinement of Al/BN composite powder can be the decomposition of hexagonal boron nitride to boron and nitrogen during the high-energy ball milling process . The high-energy milling increases defects in the Al matrix; subsequently, the boron and nitrogen atoms created by the decomposition of the boron nitride are
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A BN particle and aluminosilicate short fibre reinforced hybrid Al-12Si composite was fabricated by squeeze casting. The interface microstructures between reinforcements and matrix were
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A BN particle and aluminosilicate short fibre reinforced hybrid Al-12Si composite was fabricated by squeeze casting. The interface microstructures between reinforcements and matrix were
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After the powder bed processing of the nanosheet-micropowder mixture, the high energy of the laser irradiation toward the BN clusters with the IN718 powders provided a more voluminous, fused form
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A schematic diagram of the finally obtained BN/A1 composite. 14 BN/A1 COMPOSITE FORMATION Vol. 36, No. 1 V. Conclusion Two dissimilar materials ofBN and Al which cannot be prepared in a composite form via conventional P/M method can be well bonded by high-energy ball milling and malleable BN/A1 composites with improved strength can be obtained.
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The Ti-48at%Al composite powder was synthesized by high energy ball milling. The properties of the composite particles, such as medium diameter,Phase ,microstructure and components, were respectively investigated . Results show that, the phase evolution process can be described by: Ti+ Al fcc Ti (Al),TiAl,TiAl3,Ti3AlTiAl3,Ti3Alamorphous phase.
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Differential scanning calorimetry (DSC) analysis of the AlN p /Al composite system was conducted and the results show that there is an exothermal reaction between Al and BN starting at 580 °C in
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At this work were studied the turning conditions to get in situ formation and dispersion of Al 4 C 3 on 2024 alloy by graphite addition. The alloy matrix was obtained by attrition milling a mixture of starting powders; further additions of carbon (2,5; 5 and 10% wt) were performed by means of a planetary mill.
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Du et al. showed that in synthesizing of Al/BN composite by high energy ball milling, hot press, and subsequent hot extrusion, BN is not stable and reacts with Al to produce AlN and AlB 2 phases. Recently, structural evaluation of Al/BN composite during mechanical alloying was studied by Xia et al. [7] .
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