介质的磁化率与包裹体浓度的关系

在第五卷第一期的地球物理学报上,我们曾讨论介质的磁化率与包裹体形状的关系,但是对于介质磁化率与包裹体浓度的关系没有详细讨论。在本文中,将根据巳知的材料,对这个问题加以讨论,作为“介质的磁化率与包裹体形状的关系”一文的补充。

EFFECTIVE SUSCEPTIBILITY AND MAGNETIC CONCENTRATION OF A MEDIUM

In this paper, the effective susceptibility of a medium with magnetic particles disseminated uniformly throughout it is studied. An exact formula connecting the susceptibility K and the concentration α cannot be determined on aceomnt of the difficulty of calculating the interactions of the magnetic particles. However, by analyzing some experimental data, it appears that there might exist a fumctional relationship between α and the interactions of the magnetic particles. A brief summary of some previously pablished formulae in this connection is given and their degrees of approximation are assessed. On this basis, it is shown that the, dependence of K upon the shape of the particles is essentially the same whether Puzieha's formula br some other more complicated formula is used for the calculation.