Sendust


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Sendust

[′sen‚dəst]
(materials)
The trade name for an alloy consisting of approximately 85% iron, 6% aluminum, and 9% silicon; its powdered form is compacted to manufacture low-loss magnetic cores.

Sendust

 

an iron-based alloy (optimum composition, approximately 85 percent Fe, 9.6 percent Si, 5.4 percent Al) characterized by high magnetic permeability (μ0 up to 35,000; μmax up to 100,000), electrical resistivity (approximately 80 microohm·cm), and mechanical hardness. It is classed as a softmagnetic material. Sendust was developed in the 1930’s in Japan and is known in the USSR by the name alsifer.

Sendust is brittle and can be easily ground into powder which, when mixed with a dielectric binder, is the base material from which magnetodielectrics are pressed. The magnetodielectrics are used in radio engineering and communications technology as cores for transformers and choke coils of high stability. In cast form, Sendust is used in the manufacture of pole pieces for tape recorders.

References in periodicals archive ?
In the ISN Super-MSS[TM] Sendust (MS) choke structure, an alloy-powder material of the toroid core RTMSS material was used.
The magnetic layer is composed of a sendust powder that efficiently absorbs low frequency electromagnetic noise.
Among the topics are the effect of ferroelectric domain on fatigue fracture behavior in piezoelectric ceramics, preparing bismuth copper-based perovskite-type ceramics and their piezoelectric properties, the microstructure of titanium oxide films for dye-sensitized solar cells, absorption characteristics of composite electromagnetic wave absorber made of sendust particles dispersed in a polystyrene resin, controlling the microstructure of potassium niobate porous ceramics and their sensor properties, and the crystallization of tungstenbronze phase and its inelastic light scattering in niobiophosphate-system glass.
New inductor core materials in ferrite, iron powder alloys, and Sendust have higher saturation levels while reducing core losses significantly.
Flexible Design of Composite Electromagnetic Wave Absorber Made of Aluminum and Sendust Particles Dispersed in Polystyrene Resin (Kenji Sakai, Yoichi Wada, Yuuki Sato, and Shinzo Yoshikado).