Preparation of single phase molybdenum boride

Camurlu H. E.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.509, sa.17, ss.5431-5436, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 509 Sayı: 17
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.jallcom.2011.02.083
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5431-5436
  • Anahtar Kelimeler: Solid state reactions, Mechanochemical synthesis, Volume combustion synthesis, Molybdenum borides, MoB, HIGH-TEMPERATURE SYNTHESIS, COMBUSTION SYNTHESIS, DISPLACEMENT-REACTIONS, SYNTHESIS SHS, TIB2, COMPOSITES, POWDER
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The formation of MoB through volume combustion synthesis (VCS), and through mechanochemical synthesis (MCS) followed by annealing has been investigated. MoO3, B2O3 and Mg were used as reactants while MgO and NaCl were introduced as diluents. Products were leached in dilute HCl solution and were subjected to X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) examinations. Mo was the major phase component in the VCS products under all the experimental conditions. Mo2B, MoB, MoB2 and Mo2B5 were found as minor phases. Products of MCS contained a mixture of Mo2B, MoB, MoB2 and Mo. After annealing the MCS product at 1400 degrees C for 3 h, single phase alpha-MoB was obtained. (C) 2011 Elsevier B. V. All rights reserved.

he formation of MoB through volume combustion synthesis (VCS), and through mechanochemical synthesis (MCS) followed by annealing has been investigated. MoO(3), B(2)O(3) and Mg were used as reactants while MgO and NaCl were introduced as diluents. Products were leached in dilute HCl solution and were subjected to X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) examinations. Mo was the major phase component in the VCS products under all the experimental conditions. Mo(2)B, MoB, MoB(2) and Mo(2)B(5) were found as minor phases. Products of MCS contained a mixture of Mo(2)B, MoB, MoB(2) and Mo. After annealing the MCS product at 1400 degrees C for 3 h, single phase alpha-MoB was obtained. (C) 2011 Elsevier B. V. All rights reserved