Synthesis and characterization of noble metal borides: RuBx(x > 1)

Zhifang Li, Dafang Zheng, Zhanhui Ding, Yongfeng Li, Bin Yao, Yongsheng Li, Xudong Zhao, Guichuan Yu, Yang Tang, Weitao Zheng, Xiaoyang Liu

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Noble metal borides RuB1.1, RuB2 and Ru2B3 have been synthesized by mechanical alloying and high pressure sintering methods using ruthenium (Ru) and boron (B) powders as raw materials. The crystal structures of borides were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results shown that only RuB1.1 with hexagonal crystal structure was synthesized during the ball milling process, the orthorhombic RuB2 was synthesized under high pressure (5 GPa) and high temperature (1000 °C) conditions, while the hexagonal Ru2B3 can be synthesized under 5 GPa and 1200 °C. The mechanism of synthesis for the ruthenium borides (RuBx) are discussed in details.

Original languageEnglish (US)
Pages (from-to)188-191
Number of pages4
JournalMaterials Research Bulletin
Volume74
DOIs
StatePublished - Feb 1 2016

Keywords

  • Borides
  • High-pressure
  • Mechanical alloying
  • Microstructure
  • X-ray diffraction

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