【摘要】 对不同种属电气石进行了压电效应的定性实验及磁强度测试。结果表明:随着压力的增大,电气石晶体两端静电压逐渐增大,但两者之间无线性关系,当晶体即将破裂解体的瞬间,静电压达到极大值,随后静电压迅速下降,其回落时的静电压的方向与加压时的静电压方向相反。不同种属电气石压电性强弱表现为:锂电气石>铁电气石>镁电气石;并且电气石晶体两端的压电性强于柱面,是柱面的3～4倍;电气石晶体压电性强弱与晶体体积无关,与晶面条纹有一定的关系,表现为晶面条纹越清晰,其压电效应越明显。电气石的磁性总体表现比较弱,磁性强弱与其折射率值及化学成分中全铁含量及折射率均成正比;磁强度大小表现为:铁电气石>镁电气石>锂电气石,铁电气石垂直C轴方向的饱和磁化强度和剩磁均高于平行C轴方向。更多还原

【Abstract】 The piezoelectric effect was determined and the magnetization of diverse tourmalines was carried out in this paper.The results show that static voltage of tourmaline crystal ends enhances gradually with enhancing of pressure,but there is no a linear function between each other.At the very time that crystal breaks,static voltage can reach a maximum value,and then drops rapidly.The direction of the static voltage is rererse when giving and lossing pressure.Piezoelectric nature is:Li-tourmaline>Fe-tourmaline>Mg-tourmaline.Tourmaline crystal both ends piezoelectric nature is stronger than that of cylinder surface,which was 3～4 times of cylindrical surface.Tourmaline crystal piezoelectric nature strong or weak has nothing to do with its crystal volume but the crystal face streak.Behaviour is that the crystal surface streak is increasingly limpid,whose piezoelectric effect is increasingly obvious.Tourmaline magnetization overall is weak.Magnetic susceptibility is a linear function of the refractive index and Fe-contents.Magnetic susceptibility of Fe-tourmalie is greater than Li-tourmaline’s.Saturation magnetization and remanence magnetic of Fe-tourmaline are greater perpendicular to than parallel to C axis.更多还原