Author:
ZHENG JIAN-XUAN ,WANG CHUN-ZHENG ,
Abstract
The dysprosium-nickel phase diagram has been completed by X-rays in conjunction with differential thermal analysis. The intermetallic compound DyNi4 was detected, and the new intermetallic compound Dy4Ni17 was observed.In this system there exist ten intermetallic compounds: Dy3Ni,Dy3Ni2,DyNi,DyNi2,DyNi3,Dy2Ni7,DyNi4,Dy4Ni17,DyNi5, and Dy2Ni17. The intermetallic compounds DyNi and DyNi5 melt congruently at 1248℃and 1387℃, and the intermetallic compounds Dy3NiDy3Ni2,DyNi2,DyNi3,Dy2Ni7,DyNi4,Dy4Ni17 and Dy2Ni17 are formed by eight peritectic reactions at 762℃, 928℃, 1258℃, 1283℃, 1307℃, 1336℃, 1352℃ and 1321℃, respectively. Three eutectic reactions occur: at 31 at% Ni and 693℃, 56 at% Ni and 1173℃, 93 at% Ni and 1279℃. Neither Dy in Ni nor Ni in Dy shows any detectable solid solubility.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy