零热膨胀金属材料研究进展

宋玉柱, 张济民, 周畅, 施耐克, 陈骏

Research Progress on Zero Thermal Expansion Metallic Materials

SONG Yuzhu, ZHANG Jimin, ZHOU Chang, SHI Naike, CHEN Jun

图6 RCo₂ (R = Tb、Gd和Dy)体系的磁结构、晶体结构以及热膨胀调控^[28,29]

Fig.6 Magnetic structure, crystal structure, and thermal expansion regulation of RCo₂ (R = Tb, Gd, and Dy) systems^[28,29]
(a) crystal and magnetic structures of Tb(Co_1.9Fe_0.1) intermetallic compound at 10 K^[28]
(b) Tb(Co_{1 -}_x Fe _x)₂ macroscopic linear expansion curves^[28]
(c) comparison of intrinsic volume expansion and macroscopic linear expansion^[28]
(d) crystal structure of Gd_0.25Dy_0.75Co_1.93Fe_0.07 (GDCF)^[29]
(e) linear thermal expansion of Gd _x Dy_{1 -}_x Co₂ and GDCF (Inset shows Δl / l₀ of GdCo₂ (x = 1) in the high temperature region)^[29]