【摘要】 采用一种以Sn作为添加剂的低温瞬时液相烧结方法来制备Terfenol-D。分别研究了粉末粒度、Sn含量、成型压力、烧结工艺对样品磁性能(包括磁致伸缩性能)和力学性能的影响。获得了在12×79.6kA/m磁场下,与磁场平行方向磁致伸缩值为5.46×10-4的烧结样品,其制备条件为:粉末粒度<75μm,Sn含量为8%(质量分数,下同),成型压力为1.0GPa,在250℃持续烧结150s。更多还原

【Abstract】 A new sintering method, which is called low-temperature instantaneous liquid-phase sintering with addition of Sn, was exploited to fabricate Terfenol-D sintered compacts. In this work, the influences of powder particle size, Sn content, compaction pressure, and sintering technique on the magnetic (including magnetostrictive) and mechanical properties have been investigated. A large magnetostriction (λ∥) of 5.46×10-4 at 12×79.6 kA/m was obtained for the sintered compact using the following conditions: a powder particle size<75 μm, a Sn content of 8% , a compaction pressure of 1.0 GPa, and sintering at 250℃ for 150 seconds in the rapid thermal processor.更多还原