STUDY OF BOTTCHERS FORMULA FOR DIELECTRIC CORRELATION BETWEEN POWDER AND BULK
STUDY OF BOTTCHERS FORMULA FOR DIELECTRIC CORRELATION BETWEEN POWDER AND BULK
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DOI：
10.1088/0022-3727/3/5/306
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发表时间：
1970-01-01
影响因子：
3.4
通讯作者：
PARSHAD, R
中科院分区：
文献类型：
--
作者：
DUBE, DC;PARSHAD, R
在不同的实验条件下，如粉末的粒度、形状、填充率、介电常数和介电损耗等，研究了粉末与体的介电参数关联公式Böttcher。实验结果表明，该公式对低介电常数（小于7，近似7）有较好的精度，但对低填料分数（< 0.5）的高介电常数有偏差。然而，损失测定的准确性较低（约为10%至30%）。对观测到的介电数据与Böttcher公式的偏差提出了可能的解释。
Böttcher's formula, correlating dielectric parameters of powder and bulk, has been studied under different experimental conditions such as particle size, shape, packing fraction of the powders and their permittivities and dielectric losses. The experimental results show that the formula gives good accuracy for low permittivity (less, similar 7) but deviations occur for high permittivities at low packing fractions (< 0· 5). The accuracy for loss determination is, however, less (about 10 to 30%). Possible explanations are suggested for the observed deviations of the dielectric data from Böttcher's formula.