水合肼还原化学镀法镍包覆电气石复合粉体的制备与表征  

PREPARATION AND CHARACTERIZATION OF Ni COATED TOURMALINE COMPOSITE POWDER BY ELECTROLESS PLATING WITH HYDRAZINE HYDRATE

作　　者：何登良[1,2] 曾明静[1] 刘庚[1] 

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000 [2]绵阳师范学院无机材料制备与合成重点实验室,四川绵阳621000

出　　处：《矿物岩石》2017年第1期1-6,共6页Mineralogy and Petrology

基　　金：国家自然科学基金项目(51004066);绵阳师范学院科研项目(QD2013A02)

摘　　要：为了改善电气石的电磁性能,本研究以硫酸镍,水合肼为原料,通过化学镀法制备金属镍包覆电气石复合粉体,采用X射线衍射仪、红外吸收光谱、扫描电子显微镜、电子探针能量色散谱仪等对复合粉体进行表征,并利用振动样品磁强计、矢量网络分析仪测试了镍包覆电气石复合粉体的磁滞回线和磁损耗。研究结果显示:水合肼还原化学镀法可在电气石表面包覆纳米金属镍,硫酸镍溶液的浓度为60 mg/L为宜,浓度过高会产生大量的NiSO_4·3N_2H_4和Ni(OH)_2;磁性能测试表明:当硫酸镍浓度为60g/L时,所得镍包覆电气石复合粉体的性能最好,即通过包覆可获得具有一定磁性能的电气石基复合粉体,同时镍包覆电气石粉体的磁损耗也明显提高。With Nickel sulfate （NiSO4） and hydrazine hydrate （N2H4 · H2O） as raw materials, the tourmaline was coated with nickels by electroless plating. The composite powders were analyzed by X-ray diffraction （XRD）, scanning electron microscope （SEM）, fourier transform infrared spectroscopy （FTIR） and energy dispersive spectrometer （EDS）, respectively. Meanwhile, the magnetic properties of composite powders were analyzed with vibration magnetometer and vector network analyzer. It was revealed that the surface of tourmaline can be coated by nano nickels. Compared with tourmaline powder, magnetic properties and magnetic loss of composite powders was improved obviously by coated nickel.

关 键 词：水合肼 化学镀 镍 电气石 

分 类 号：TB34[一般工业技术—材料科学与工程]