Solid solution range of boron and properties of the perovskite-type NdRh3B

Toetsu Shishido, Takahiko Sasaki, Kunio Kudou, Shigeru Okada, Akira Yoshikawa, Jung Min Ko, Jinhua Ye, Iwami Higashi, Masaoki Oku, Hiroyuki Horiuchi, Tsuguo Fukuda, Shigemi Kohiki, Kazuo Nakajima

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Polycrystalline samples of NdRh3Bx have been synthesized by arc melting technique. The crystal structure of NdRh3Bx is the perovskite-type cubic system (space group Pm3̄m) for nominal boron concentration in the range of 0.706≤x≤1.000 (15-20 mol.% B). The lattice parameter a varies linearly from 0.41749(7) nm (x = 0.706) to a = 0.42136(6) nm (x = 1.000). Thermogravimetric analysis indicates that the oxidation onset temperature for NdRh3B1.000 is 663 K. The weight gain of the sample by heating in air up to 1473 K is 10.00% for NdRh3B1.000, and oxidized products are Rh and NdBO3. The micro-Vickers hardness is 4.9±0.05 GPa for NdRh3B1.000. NdRh3B1.000 shows a metallic temperature dependence of the resistivity down to 0.5 K. Magnetic susceptibilities for NdRh3B1.000 show Curie-like paramagnetic temperature dependence due to Nd3+ moments. No trace of magnetic phase transitions and superconductivity is found.

Original languageEnglish
Pages (from-to)191-195
Number of pages5
JournalJournal of Alloys and Compounds
Volume335
Issue number1-2
DOIs
Publication statusPublished - 2002 Mar 14

Keywords

  • Electric property
  • Magnetic property
  • Microhardness
  • NdRhB
  • Oxidation resistance in air

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Shishido, T., Sasaki, T., Kudou, K., Okada, S., Yoshikawa, A., Ko, J. M., Ye, J., Higashi, I., Oku, M., Horiuchi, H., Fukuda, T., Kohiki, S., & Nakajima, K. (2002). Solid solution range of boron and properties of the perovskite-type NdRh3B. Journal of Alloys and Compounds, 335(1-2), 191-195. https://doi.org/10.1016/S0925-8388(01)01832-1