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  • Effect of zinc oxide and alumina nanoparticles on

    Abstract The effect of Al2O3 and ZnO on the microstructure, magnetic and mechanical properties of the iron is the objective of this work. For the Fe / Al2O3 and Fe/ZnO nanostructured composite, the powder alloy have milled by PM400 planetary ball Mill at different milling times with 15 min of milling follow to 15 min of the break, at a speed of 320 rpm, after 30 h, the average crystallite size

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  • Synergetic catalytic effect of ionic liquids and ZnO

    A solvent-free selective green synthesis of 1,2-disubstituted benzimidazoles was developed using a ball-milling technique. Recyclable ionic liquid-coated ZnO-nanoparticles (ZnO-NPs, catalyst 5) were employed as a catalyst, which produced high yields, turnover number and

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  • Phase development during high

    Nov 21, 2015High-energy ball-milling of powder mixtures of zincite (ZnO) and iron (α-Fe) at different weight ratios was performed in air using a planetary ball mill with a stainless steel milling assembly. Structural and microstructural changes during the ball-milling (up to 30 h) were monitored using X-ray powder diffraction, field emission scanning

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  • Efficient production of ZnO nanowires by a ball milling

    Apr 02, 2007ZnO powder was mechanically milled in a ball mill. This procedure was found to greatly increase its evaporation ability. The anomalous evaporation behaviour was caused by the diso

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  • ZnFe2O4 powder synthesized by reactive ball milling (2010)

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The zinc ferrite (ZnFe2O4) has been obtained in nanocrystalline state by reactive milling in a high energy planetary mill from a stoichiometric mixture of oxides (ZnO and α-Fe2O3). A post milling annealing promotes the solid state reaction, improves the ferrite crystalline state and removes internal stresses.

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  • [Article Metrics] High

    High-energy ball milling technique for ZnO nanoparticles as antibacterial material Numan Salah1, Sami S Habib1, Zishan H Khan1, Adnan Memic1, Ameer Azam1, Esam Alarfaj2, Nabeel Zahed3, Salim Al-Hamedi31Center of Nanotechnology, King Abdulaziz University, Jeddah; 2Department of Physics, Umm Al Qura University, Makkah Al Mukarramah; 3Department of Biological Science, King Abdulaziz

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  • Reactive ball milling to produce nanocrystalline ZnO

    Ball milling of zinc powders in oxygen atmosphere leads to nanocrystalline ZnO. The average grain size has a value of 9 nm. The zinc oxidation proceeds gradually. It is compared with the combustion oxidation reactions of metals (Zr, Ti, Fe and Sn) reported previously.

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  • Altered physiochemical properties in industrially

    Oct 24, 2017Synthesis of ZnO nanoparticles. Synthesis of Zinc Oxide (ZnO) nanoparticles were done by milling Bulk Zinc Oxide powder (Merck) in planetary High Energy ball Milling

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  • ZnO Nanospheres Fabricated by Mechanochemical Method with

    The preparation of high specific area (86.5 m2/g) ZnO nanospheres with good photocatalytic efficiency via a simple, green and efficient mechanochemical method was reported in this work. The products were characterized by XRD, SEM, TEM, BET and UV–Vis. The ball milling parameters were improved to reduce the agglomeration hazard during the ball milling process, and the specific surface area

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  • Reaction Bonding of Zinc Oxide (RBZO) to Produce ZnO

    Jun 14, 2007Varistors are commonly made using Zinc Oxide (ZnO) in an expensive process. the rotation speed of the mill was 200 rpm during 16 h of milling. The ball-to-powder volume ratio was of 10:1. With the milled powder mixture, cylindrical samples of 2 cm diameter and 0.2 cm thickness were fabricated by uniaxial pressing at 270 MPa pressure.

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  • Effect of milling conditions on the formation of ZnFe2O4

    The effects of milling parameters on the formation of ZnFe 2 O 4 nanocrystalline are studied. Powder mixtures of ZnO and Fe 2 O 3 were milled in high energy vibrant ball milling for different balls to powders mass ratio and milling times. X-ray diffraction and scanning electron microscopy are used to characterize the powders.

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  • Effect of ball size on milling efficiency of zinc oxide

    Oct 21, 2016Zinc oxide (ZnO) was wet milled using inert Al 2 O 3-ceramic balls having different diameter at different milling intervals and the milling efficiency of the resultant dispersion was followed through particle size analysis and zeta potential measurements.The results indicated that small-sized balls improved the milling efficiency. The highest share (%) of lower-size particles was obtained

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  • Red

    Nov 16, 2015Methods. Nanocrystalline MoS 2 (from Alfa Aesar, 325 mesh, 99 %) was prepared using a high-energy ball-milling method. MoS 2 was milled in ceramic milling vials (zirconia) using zirconia balls for 10, 20, and 40 h. The ball-to-powder weight ratio was 2:1 to produce at least 2 g of nanopowder. The mechanical milling was performed in a horizontal oscillatory mill (Retsch, PM 400) operating at

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  • Open Research: Synthesis of ZnO Nanowires using Ball

    promising approaches to the large scale synthesis is a ball-milling and annealing method. This paper first introduces several common synthesis methods of ZnO nanowires and then summarizes the one dimensional nanomaterials produced by the ball milling and annealing method.

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  • ZnO/biochar nanocomposites via solvent free ball milling

    Ball milling increased the mesopores and macropores of the nanocomposites by breaking biochar and squeezing ZnO. The addition of appropriate amount of ZnO into biochar enhanced both the adsorption capacity and photocatalytic ability of the nanocomposites for methylene blue () removal.

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  • ZnO nanoparticles obtained by ball milling technique

    May 24, 2016The ZnO nanoparticles were obtained by ball milling of commercial grade ZnO powder at 250 rpm for 20 h and studied their structural, micro-structure, optical and photo-catalytic properties. Due to

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  • Nanocrystalline ZnO powder prepared by high energy ball mill

    Nanocrystalline ZnO powder prepared by high energy ball mill We have obtained zinc oxide (ZnO) in the form of nanocrystallites with crystallite sizes from 46 nm to 3 nm by milling 1.4 micron ZnO powders in the high energy ball mill (HEBM) for the different times: 1, 5 and 8 hours.

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  • Ball Milled ZnO for Varistor Applications

    Application of High Energy Ball Milling in Mineral Materials: Extraction of TiO 2 from Mineral FeTiO 3 p.985. Ball Milled ZnO for Varistor Applications p.993. Home Materials Science Forum Materials Science Forum Vols. 235-238 Ball Milled ZnO for Varistor Applications. Ball Milled ZnO for Varistor Applications

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  • ZnO/graphene nanocomposite fabricated by high energy ball

    Short communication ZnO/graphene nanocomposite fabricated by high energy ball milling with greatly enhanced lithium storage capability Mingpeng Yua,b, Dali Shaoc, Fengyuan Lub, Xiang Sunb, Hongtao Sunb, Tao Hub, Gongkai Wangb, Shayla Sawyerc, Hong Qiud, Jie Lianb,⁎ a Department of Chemistry, Tsinghua University, Beijing 100084, China b Department of Mechanical, Aerospace Nuclear

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  • The Improvement of the Band Gap Energy and Antibacterial

    high energy ball milling. Therefore, this study aimed to investigate the formation of CeO 2 / ZnO nanocomposites by planetary ball milling and we have also investigated the structural, optical and antibacterial properties of CeO 2 / ZnO nanocomposites. 2. MATERIALS AND METHODS 2.1 Preparation of CeO 2 /ZnO Nanocomposites

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  • Photoluminescence and X

    milled zinc oxide (ZnO) powder prepared by high energy ball milling technique are investigated. Commercial ZnO powder (particle size of 525 nm) was chosen as starting material in milling process to produce ultrafine ZnO powder. The milling process was carried out at different speeds; 0, 200, 400 and 600 rpm for 10 min. After milling at high

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  • Rheological behaviors of ball

    Figure 1 shows the particlesize distribution of ball-milled and wet-jet milled ZnO slurries. The mean particlesizes of ZnO samples were 374 and 372nm for ball milling and wet-jet milling, respectively[Fig. 1(a)]. It was almost equal to the primary size of ZnO particles, indicating that it is possibleto

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  • The effect of ball

    With optimized ball-milling time of 9 h, a transmittance in the visible light range of SWCNTs-incorporated ZnO film maintained over 87% of transparency. Also the resistivity of this film (0.53 Ω cm) was less than that (1.48 Ω cm) of SWCNTs-incorporating ZnO without a ball-milling.

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  • Synthesis of ZnO nanowires using ball

    One of the promising approaches to the large scale synthesis is a ball-milling and annealing method. This paper first introduces several common synthesis methods of ZnO nanowires and then summarizes the one dimensional nanomaterials produced by the ball milling and annealing method.

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  • A Review of the Synthesis and Photoluminescence Properties

    In the literature, reports of CNT-ZnO hybrids prepared by ball milling are available . Zhang et al. deposited ZnO nanodots onto the CNT films by ultrasonic spray for applications as electrodes [ 71 ]. 3D structures of ZnO CNT have also been grown by many groups [ 72 ].

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  • Effect of gallium doping and ball milling process on the

    Effect of gallium doping and ball milling process on the thermoelectric performance of n-type ZnO . Abstract . We report a systematic investigation of the thermoelectric properties of n-type Ga-doped ZnO synthesized using different ball milling conditions. Samples fabricated by the high-energy ball milling

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  • One‐Step Synthesis of Zn to Single‐Phase Nanocrystalline

    Apr 12, 2010Single-phase ZnO nanoparticles were successfully prepared by solid–liquid reaction ball milling assisted by ultrasonic wave. The samples were characterized by X-ray diffraction and transmission electron microscopy.

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  • Efficient production of ZnO nanowires by a ball milling

    ZnO powder was mechanically milled in a ball mill. This procedure was found to greatly increase its evaporation ability. The anomalous evaporation behaviour was caused by the disordered structure of the milled material and was not related to the increase in its surface area after milling. ZnO nanowires were synthesized by evaporation of this milled precursor.

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  • Highly Mixed Phases in Ball

    Preparation of the Ball-milled Materials.Three dif-ferent materials have been prepared by ball milling cuprite Cu 2O and zincite ZnO mixtures (Cu/Zn atomic ratio 30:70) in synthetic air (BMSA), synthetic air plus CO2 (BMSA+CO2), and pure CO2 (BM CO2). Typically2gofmaterial was milled during 200 h in a vibratory mill.18 Cu 2O (99%, 74 m) and

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  • Characteristic analysis of ZnO varistors made with

    ZnO-I and ZnO-II powders were calcined in an alumina cru- cible at 800 "C for 2 h. Then, the 97 mol ZnO and 0.5 mol (BO, + 2Sb,O, + MnO + Co0 + Cr,O,) were used as the original materials. They were mixed by ball-milling in alco- hol for 24 h. The mixture was dried and calcined in air at 600

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  • Solvent

    Moreover, the photocatalytic activity of the ball-milling composite for degradation of methylene blue () dye under visible light illumination are superior not only to TRG, ZnO, and hydrothermal ZnO-graphene nanocomposite but also to other reported ZnO and ZnO-graphene nanocomposite.

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  • A Brief Review on the Synthesis of Zno Nanoparticles for

    ball milling, physical/chemical vapor Physical synthesis can be divided into high energy ball milling, physical/chemical vapor deposition, and laser ablation processes. C. Prommalikit et al. [58] reduced the particle size from micron to nano scale of ultrafine ZnO powder by using a high energy ball milling

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