研究了由铁磁性Ni和非磁性ZrO2颗粒组成的混合浆料在磁场中的内部结构及其形成机理.结果表明,磁场下浆料中Ni粒子易于形成链状团簇,而且团簇尺寸随着磁场强度的增加和磁场施加时间的延长而增大.这是粒子受外场作用和粒子与粒子之间相互作用的结果.此外,还建立了磁场下链状团簇形成的简单物理模型,为磁场下制备功能梯度材料提供实验和理论依据.
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