Synthesis of VB2-V3B4-V2B3/VC hybrid powders via powder metallurgy processes

Yıl 2018, Cilt: 3 Sayı: 3, 180 - 187, 30.11.2018

Duygu Ağaoğulları , Özge Balcı , Siddika Mertdinç , Emre Tekoğlu , M. Lütfi Öveçoğlu

https://doi.org/10.30728/boron.441148

Cited By: 2

Öz

The
present study reports the in-situ synthesis of hybrid powders containing
vanadium borides (VB₂, V₃B₄ and V₂B₃)
and vanadium carbide (VC) using powder metallurgy methods. VB₂-V₃B₄-V₂B₃/VC
hybrid powders were synthesized from V₂O₅,
B₂O₃ and
C powder blends via a carbothermal reduction route assisted by mechanical
milling. Powder blends were mechanically milled up to 5 h in a high-energy ball
mill. The milling process reduced the crystallite size, increased the
uniformity of the particle distribution and hence increased the reactivity of
the starting powders. As-blended and milled powders were annealed at different
temperatures (1400, 1500 and 1600°C) for 12 h to investigate the probability of
achieving vanadium boride and carbide phases simultaneously. Annealed powders
were characterized using X-ray diffractometer (XRD), scanning electron
microscope/energy dispersive spectrometer (SEM/EDS) and particle size analyzer.
In case of using annealing temperature of 1400°C, VB₂-V₃B₄-V₂B₃/VC
hybrid powders were obtained with an amount of unreacted V₂O₅.
Annealing temperatures of 1500 and 1600°C resulted in the formation of VB₂,
V₃B₄, V₂B₃
and VC phases. Milling affected the weight percentages of the phases as well as
the type of major boride phase.

Anahtar Kelimeler

Annealing, mechanical milling, microstructure, vanadium borides

Kaynakça

• 1. Yeh C.L., Wang H.J., Combustion synthesis of vanadium borides, Journal of Alloys and Compounds, 509, 3257–3261, 2011.
• 2. Shi F., Wang L., Liu J., Synthesis and characterization of silica aerogels by a novel fast ambient pressure drying process, Materials Letters, 60, 3718–3722, 2006.
• 3. Hassanzadeh-Tabrizi S.A., Davoodi D., Beykzadeh A.A., Salahshour S., Fast mechanochemical combustion synthesis of nanostructured vanadium boride by a magnesiothermic reaction, Ceramics International, 42, 1812–1816, 2016.
• 4. Shi L., Gu Y., Chen L., et. al., Low-temperature synthesis of nanocrystalline vanadium diboride, Materials Letters, 58, 2890–2892, 2006.
• 5. Zhao Z., Liu Y., Cao H., et. al., Synthesis of vanadium carbide nanopowders by thermal processing and their characterization, Powder Technology, 181, 31–35, 2008.
• 6. Ma J., Wu M., Du Y., et. al., Low temperature synthesis of vanadium carbide (VC), Materials Letters, 63, 905–907, 2009.
• 7. Zhang B., Li Z.Q., Synthesis of vanadium carbide by mechanical alloying, Journal of Alloys and Compounds, 392, 183–186, 2005.
• 8. Wu Y.D., Zhang G.H., Chou K.C., A novel method to synthesize submicrometer vanadium carbide by temperature programmed reaction from vanadium pentoxide and phenolic resin, International Journal of Refractory Metals and Hard Materials, 62, 64–69, 2017.
• 9. Hossein-Zadeh M., Razavi M., Safa M., et. al., Synthesis and structural evolution of vanadium carbide in nano scale during mechanical alloying, Journal of King Saud University - Engineering Sciences, 28, 207–212, 2016.
• 10. Kurlov A.S., Gusev A.I., Gerasimov E.Y., et. al., Nanocrystalline ordered vanadium carbide: Superlattice and nanostructure, Superlattices and Microstructures, 90, 148–164, 2016.
• 11. Lipatnikov V.N., Phase equilibria, phases and compounds in the V–C system, Russian Chemical Reviews, 74, 697–723, 2005.
• 12. Mestral F., Thevenot F., Ceramic composites: TiB2-TiC-SiC - Part I Properties and microstructures in the ternary system, Journal of Materials Science, 26, 5547–5560, 1991.
• 13. Balcı Ö., Ağaoğulları D., Ovalı D., et. al., In situ synthesis of NbB2-NbC composite powders by milling-assisted carbothermal reduction of oxide raw materials, Advanced Powder Technology, 26, 1200–1209, 2015.
• 14. Balcı Ö., Ağaoğulları D., Duman İ., Öveçoğlu M.L., Carbothermal production of ZrB2–ZrO2 ceramic powders from ZrO2–B2O3/B system by high-energy ball milling and annealing assisted process, Ceramics International, 38, 2201–2207, 2012.
• 15. Suryanarayana C., Mechanical alloying and milling, Progress in Materials Science, 46, 1–184, 2001.
• 16. Balachander L., Ramadevudu G., Shareefuddin M., et. al. IR analysis of borate glasses containing three alkali oxides, ScienceAsia, 39, 278–283, 2013.
• 17. Moon O.M., Kang B.C., Lee S.B, Boo J.H. Temperature effect on structural properties of boron oxide thin films deposited by MOCVD method, Thin Solid Films, 464–465, 164–169, 2004.
• 18. Krutskii Y.L., Maksimovskii E.A., Krutskaya T.M., et. al., Synthesis of highly dispersed vanadium diboride with the use of nanofibrous carbon, Russian Journal of Applied Chemistry, 90, 1379–1385, 2017.
• 19. Grigor O.N., Koval V.V., Zaporozhets O.I., et. al., Synthesis and Physicomechanical Properties of B4C − VB2 Composites, 45, 47–58, 2006.
• 20. Demirskyi D., Sakka Y., Vasylkiv O., Consolidation of B4C-VB2 eutectic ceramics by spark plasma sintering, Journal of the Ceramic Society of Japan, 123,1051–1054, 2015.