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11 不同双相合金体系的热膨胀调控^{[14~16,45,94]}

Fig.11 Thermal expansion control of different biphase alloy systems^{[14-16,45,94]}
(a) zero thermal expansion dual-phase alloy obtained by synergistic combination of negative thermal expansion L phase (La(Fe, Co, Si)₁₃) and positive thermal expansion α phase (α-(Fe, Co, Si)) (α_Calc.—calculated S-3 ZTE (empty circle point line) is derived from L-phase and α phase thermal expansions)^[14]
(b) thermal expansion behavior of LaFe_0.939_x Co_0.061_x Si_0.0583_x (x = 37.5, 47.5, 57.5, and 67.5, designated as S-1, S-2, S-3, and S-4, respectively)^[14]
(c) macroscopic linear expansion of samples labeled S-3 (x = 0.03) to S-9 (x = 0.09) in Ho _x Fe_{1 -}_x with x = 0.03, 0.04, 0.05, 0.07, and 0.09^[15]
(d) linear thermal expansion curves of samples in (LaFe_10.8CoSi_1.2)_{100 -}_y -Cu _y alloys where y = 0, 15, 25, 35, and 45^[94]
(e) thermal expansion of Er₂Fe_{14 +}_x B_{1 + 0.07}_x alloy compared to pure iron^[16]
(f) cyclic thermal expansion properties of Fe_2.85Mn_0.15PtB_0.25^[45]