R-dependency of the hardness of Perovskite-type RRh3B compounds (R = La, Gd, Lu and Sc)

Toetsu Shishido, Kunio Kudou, Shigeru Okada, Jinhua Ye, Akira Yoshikawa, Takahiko Sasaki, Masaoki Oku, Hiroyuki Horiuchi, Iwami Higashi, Shigemi Kohiki, Yoshiyuki Kawazoe, Kazuo Nakajima

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Perovskite-type rare-earth rhodium borides of the chemical formula RRh3B (R = La, Gd, Lu and Sc) have been studied from the viewpoint of microhardness. Polycrystals of RRh3B are synthesized by the arc melting method. RRh3B compounds have a perovskite-type cubic structure (space group: Pm3̄m). The microhardness become larger with the contraction of the volume of the Rh6B octahedron in the perovskite-type structure. As a result, microhardness increases with decreasing atomic size of R in RRh3B.

Original languageEnglish
Pages (from-to)6037-6038
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number10
Publication statusPublished - 2001 Oct 1

Keywords

  • Hardness
  • Perovskite-type compound
  • RRhB (Ln = La, Gd, Lu and Sc)
  • Rare-earth rhodium boride

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'R-dependency of the hardness of Perovskite-type RRh<sub>3</sub>B compounds (R = La, Gd, Lu and Sc)'. Together they form a unique fingerprint.

  • Cite this

    Shishido, T., Kudou, K., Okada, S., Ye, J., Yoshikawa, A., Sasaki, T., Oku, M., Horiuchi, H., Higashi, I., Kohiki, S., Kawazoe, Y., & Nakajima, K. (2001). R-dependency of the hardness of Perovskite-type RRh3B compounds (R = La, Gd, Lu and Sc). Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 40(10), 6037-6038.