基于细菌形体的新型Ni－P微纳米金属材料的制备

J. Mater. Sci. Technol. ›› 2009, Vol. 25 ›› Issue (01): 58-62.

基于细菌形体的新型Ni－P微纳米金属材料的制备

Xin Liang, Jianhua Liu^† and Songmei Li

School of Materials Science and Engineering; Beihang University; Beijing 100083; China

收稿日期:2007-06-08 出版日期:2009-01-28 发布日期:2009-10-10
通讯作者: Jianhua Liu

Preparation of New Type Ni-P Micro/Nano Metal Material Based on Bacteria Shape

Xin Liang, Jianhua Liu^† and Songmei Li

School of Materials Science and Engineering, Beihang University, Beijing 100083, China

Received:2007-06-08 Online:2009-01-28 Published:2009-10-10
Contact: Jianhua Liu

摘要/Abstract

摘要：

本文以诺卡氏菌为模板，采用化学沉积的方法制备了一种新型杆状Ni－P金属材料，并采用微生物学方法、X射线衍射、表面分析方法和磁性能分析方法对材料进行表征。当化学沉积的pH值为8.0时，得到的Ni-P金属材料为非晶态，Ni晶体的含量随pH升高而增加。Ni－P纳米颗粒首先沉积在诺卡氏菌表面的活性点上，然后逐渐形成致密的Ni－P金属膜层。化学沉积完成后材料仍旧保持诺卡氏菌原有的杆状。在镀液pH值为9.7情况下制备出的材料的磁性能好于在pH值为8.0时制备材料的磁性能。pH为9.7时制备的材料在频率大于14GHz时电损耗高于0.3，在18GHz时可达1.5，该材料属于介电损耗型材料。

关键词: Ni-P金属材料, 诺卡氏菌, 生物约束成型技术, 磁行为

Abstract:

A new type of Ni-P alloy with rod-shape was prepared by electroless deposition method based on the shape of Nocadia, a kind of bacteria. The material was characterized by microbiological method, scanning elec- tron microscope, energy dispersion spectroscopy, transmission electron microscopy, fourier transform infrared spectroscopy, X-ray diffraction and vibrant sample magnetometer. It was found that Ni-P alloy deposited on Nocadia surface was amorphous when pH=8.0. The amount of Ni crystalline increased with pH of plating solution. Ni-P nano-particles deposited on active locations on the surface at the initial stage, and then ho- mogeneous Ni-P film formed with time. Nocadia remained their original rod shape after Ni-P nano-particles deposition. The new type metal material formed of Ni-P alloy with nano-particles was prepared. The mag- netization of the material prepared at pH=9.7 is greater than that prepared at pH=8.0. The magnetic loss of the material prepared at pH=9.7 is less than 0.1. The dielectric loss exceeds 0.3 when frequency is higher than 14 GHz, which is 1.5 at 18 GHz. The new type Ni-P metal material with Nocadia shape has dielectric loss property.

Key words: Ni-P metal material, Nocadia, Bio-limited forming technology, Magnetic behavior

梁馨刘建华李松梅. 基于细菌形体的新型Ni－P微纳米金属材料的制备[J]. J. Mater. Sci. Technol., 2009, 25(01): 58-62.

Xin Liang,Jianhua Liu,Songmei Li. Preparation of New Type Ni-P Micro/Nano Metal Material Based on Bacteria Shape[J]. J Mater Sci Technol, 2009, 25(01): 58-62.

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