Preparation of Bulk β-FeSi2 Using a Na–Si Melt
Preparation of Bulk β-FeSi2 Using a Na–Si Melt
复制标题
使用 Na-Si 熔体制备块状 β-FeSi2
DOI：
10.1143/jjap.48.100209
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发表时间：
2009
影响因子：
1.5
通讯作者：
H. Yamane
中科院分区：
文献类型：
--
作者：
Takahiro Yamada;H. Morito;H. Yamane
在Na-Si熔体中，将Fe粉压坯在1173 K下加热24 h，制备了多晶块体β-FeSi 2。体相样品的相对密度为β-FeSi 2理论密度的78%。Mn掺杂和Co掺杂的块体样品也从Fe粉末与Mn和Co粉末混合的致密体制备。在400至1000 K的温度范围内，Mn和Co掺杂样品的Seebeck系数分别为+125至+270 µV/K和-120至-180 µV/K。
Polycrystalline bulk β-FeSi2 was prepared by heating a compact body of Fe powder in a Na–Si melt at 1173 K for 24 h. The relative density of the bulk sample was 78% of the theoretical density of β-FeSi2. Mn-doped and Co-doped bulk samples were also prepared from compact bodies of Fe powder mixed with Mn and Co powders. The Seebeck coefficients measured for the Mn- and Co-doped samples in the temperature range between 400 and 1000 K were +125 to +270 µV/K and -120 to -180 µV/K, respectively.