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The microstructure and properties of Cu-TiB2 composites produced by high-energy ball-milling of TiB2 powders and spark-plasma sintering (SPS) were investigated. TiB2 powders were mechanically milled at a rotation speed of 1000rpm for short time in Ar atmosphere, using a planetary ball mill. To produce Cu-xTiB2 composites( x = 2.5, 5, 7.5 and 10wt.% ), the raw and …
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ball milling,which is the main objective of this study. This technique is proven to be useful in obtaining materials with J. I. Pereira1*, C. Silva2, M. F. Hupalo2, A. N. Klein1, J. B. Rodrigues Neto1 and O. M. Cintho2 1Laboratório de Materiais (Labmat), Departamento de …
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In this study, mechanical alloying (MA) was used to synthesise Al-Fe/TiB 2 nanocomposites using aluminium, ferrotitanium and acid boric as raw materials. The powders were mixed and …
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The effects of ball milling on TiB2 powder composition and densification behavior, mechanical properties, and microstructures of the ceramic composites were investigated. TiO2 and B2O3 in the raw ...
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A series of TiB2–TiC composites were successfully fabricated through one-step and two-step pressureless sintering using powders obtained by high-energy ball-milling. Effects of ball-milling time ...
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ISSN 1392–1320 MATERIALS SCIENCE (MEDŽIAGOTYRA). Vol. 11, No. 4. 2005 Characterization of the Structure and Properties of Composite Powder Materials and Coatings Renno VEINTHAL1∗, Priit KULU1, Helmo KÄERDI2 1 Department of Materials Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia Department of …
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TiB2 p /CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the …
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We have studied how the duration of the vibration comilling of a 80 vol % TiB2 + 20 vol % TiNi powder mixture influences the particle size, morphology, and fine-structure …
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TiB2/TiC nanocomposite powder was fabricated via high-energy ball milling processing, and microstructure development of the powder mixtures was monitored by X-ray diffraction, transmission ...
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Planetary ball-milling and attrition-milling are compared for three TiB2 powders for various milling times. The comminution of the powders is characterized by the mean particle size and the ...
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Boron carbide composites with 10 vol.% TiB2 were prepared by reactive sintering of B4C, TiO2, and carbon black powder mixture at the temperature of 1800 °C, under a pressure of 70 MPa in a vacuum.
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View of the cutting edge worn to 0.2 mm on the flank surface of the milling cutter tooth coated with CrN-ncAlTiN/Si 3 N 4 +Tab2 (a) and CrN-ncAlCrN/Si 3 N 4 + TiB2 (c) in reflected electrons and ...
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Al2O3–TiB2 composites were synthesized using high-energy ball milling from starting powders containing Al, TiO2, and B2O3. To explore the effect of the addition of another ductile metallic phase ...
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Powder mixtures of Ti(C, N) and TiB 2 with a mass ratio 3:1 and 10 wt% FeCoCrNiAl HEA powder were obtained by wet mixture in a full planetary ball mill vial containing a stainless steel ball and ethyl alcohol as media for 15 h, and the rotation speed was 150 r/min. The mixed powder was dried at 70 °C and passed through a 100-mesh sieve.
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TiB2 raw powders were treated by planetary ball-milling and the oxidation behavior was analyzed by X-ray photoelectron spectrometer, X-ray difrractometer, energy dispersive X-ray spectrometry.
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Crystalline (or grain) size reduction and dispersion behavior of brittle TiB2 powder during ball milling are investigated together with mechanical alloying behavior of ductile metallic matrix ...
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Titanium diboride ceramic was produced via spark plasma sintering (SPS) using finer TiB2 powder made by high-speed planetary ball milling. The effects of ball milling parameters on the composites and particle size of TiB2 powder were investigated. It was shown that the average particle size of TiB2 powder decreased from 5.8 to 1.59 µm and the wear rate of WC balls was …
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Dispersion-strengthened copper with TiB2 was produced by ball-milling and spark plasma sintering (SPS).Ball-milling was performed at a rotation speed of 300rpm for 30 and 60min in Ar atmosphere by ...
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DOI: 10.1016/J.MSEA.2006.06.131 Corpus ID: 136697238; Effect of ball milling on simultaneous spark plasma synthesis and densification of TiC-TiB2 composites @article{Locci2006EffectOB, title={Effect of ball milling on simultaneous spark plasma synthesis and densification of TiC-TiB2 composites}, author={Antonio Mario Locci and Roberto Orr{'u} and Giacomo Cao and Zuhair …
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High-performance and fine-grained TiB2–SiC composite ceramics were fabricated via hot pressing with ball-milled TiB2 powder doped with SiC. The final product was densified at a relatively low sintering temperature of 1850 °C and brief soaking time of 30 min. The effects of ball milling on TiB2 powder composition and densification behavior, mechanical properties, and …
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The ball milling effectively refined the crystallite structure of TiB₂ powders and facilitated the subsequent consolidation. The sinter-onset temperature was reduced …
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In view of potentiality of titanium diboride (TiB2) materials for high temperature applications, this paper presents the state of art on the processing, microstructure and properties of TiB2 ceramics.
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TiB 2 /6063Al matrix composites are fabricated from Al–TiO 2 –B 2 O 3 system by the technology combining high energy ball milling with melt in situ reaction. The microstructure …
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This study reports the effects of reinforcement content (2, 5 and 10 wt%) and sequential milling on the microstructural, physical and mechanical properties of the TiB2 …
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Dispersion-strengthened copper with TiB2 was produced by ball-milling and spark plasma sintering (SPS).Ball-milling was performed at a rotation speed of 300rpm for 30 and 60min in Ar atmosphere by using a planetary ball mill (AGO-2). Spark-plasma sintering was carried out at 650℃ for 5min under vacuum after mechanical alloying. The hardness ...
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The effect of ball milling pre-treatment of the starting Ti, B 4 C and C powders mixture on the synthesis of dense TiC/TiB 2 composite was investigated through the combined use of a SPEX mill and the spark plasma sintering (SPS) apparatus. ... Effect of ball milling on simultaneous spark plasma synthesis and densification of TiC–TiB2 composites.
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Effect of ball milling on simultaneous spark plasma synthesis and densification of TiC–TiB2 composites . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up with and we'll email you a reset link. ...
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Both powder mixtures were processed in a planetary ball Fritsch P-5 ball mill under Ar atmosphere, varying the milling parameters: rotary speed (150 and 200 rpm), size of balls (10 and 19mm ...
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The synthesis of nanocomposite WC-MgO powders was investigated by high-energy ball milling of the mixture powders WO3, graphite and Mg at the mole ratio of 1:1:3.
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The present work reports the effect of high-energy ball milling on B-Ti-C mixtures. The milling process was carried out for up to 70 h and then the milled powders were heat treated between 800 ...
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