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发明授权
CN107658091B 高磁导率磁性片材 有权

高磁导率磁性片材
摘要：
一种磁性片材，其特征在于，其充填有36体积％以上的Fe‑Si‑Al合金扁平粉，该Fe‑Si‑Al合金扁平粉的组成由以重量％计9.3≤Si≤9.7、5.7≤Al≤6.1和余量Fe构成，长径比为20以上且50以下，50％粒径D50为50μm以上且100μm以下且矫顽力Hc为60A/m以下；该磁性片材在1MHz下测定的磁导率μ’的温度特性在0℃以上且40℃以下显示极大值。
摘要（英）：

A magnetic sheet comprises, by vol. %, Fe—Si—Al alloy flat powder: 36% or more. The Fe—Si—Al alloy flat powder comprises, by wt %, 9.3%≤Si≤9.7%, 5.7%≤Al≤6.1%, and remaining Fe. The Fe—Si—Al alloy flat powder has: an aspect ratio in a range of 20 or more and 50 or less; a 50% particle size D50 in a range of 50 μm or more and 100 μm or less; and a coercivity Hc of 60 A/m or less. The magnetic sheet has a temperature characteristic of permeability μ′ measured at 1 MHz exhibiting a maximum value in a range of 0° C. or more and 40° C. or less.

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