Sn作为添加剂的低温瞬时液相烧结Terfenol-D工艺的研究  

Study on the Low-Temperature Instantaneous Liquid-Phase Sintering Method for Terfenol-D with Addition of Sn

作　　者：赵书文[1] 韩晓艳[1] 刘何燕[1] 赵勇[1] 曲静萍[1] 李养贤[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《稀有金属材料与工程》2007年第4期750-752,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(05271023);教育部科学重点项目(02017)

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。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 panicle 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 panicle 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.

关 键 词：液相烧结 Tcrfcnol-D 磁致伸缩 

分 类 号：TM271[一般工业技术—材料科学与工程]