TY - JOUR
T1 - R-dependency of the hardness of Perovskite-type RRh3B compounds (R = La, Gd, Lu and Sc)
AU - Shishido, Toetsu
AU - Kudou, Kunio
AU - Okada, Shigeru
AU - Ye, Jinhua
AU - Yoshikawa, Akira
AU - Sasaki, Takahiko
AU - Oku, Masaoki
AU - Horiuchi, Hiroyuki
AU - Higashi, Iwami
AU - Kohiki, Shigemi
AU - Kawazoe, Yoshiyuki
AU - Nakajima, Kazuo
PY - 2001/10
Y1 - 2001/10
N2 - 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.
AB - 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.
KW - Hardness
KW - Perovskite-type compound
KW - RRhB (Ln = La, Gd, Lu and Sc)
KW - Rare-earth rhodium boride
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U2 - 10.1143/jjap.40.6037
DO - 10.1143/jjap.40.6037
M3 - Article
AN - SCOPUS:0035484732
SN - 0021-4922
VL - 40
SP - 6037
EP - 6038
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 10
ER -