Preparation of ultrafine silver powder using ascorbic acid as reducing agent and its application in MLCI

被引：134

作者：

Wu, SP ^{[1
]}

Meng, SY

机构：

[1] SouthChina Univ Technol, Guangzhou 510630, Peoples R China

[2] Fenghua Adv Technol Holding Co Ltd, Zhaoqing 520620, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2005年 / 89卷 / 2-3期

关键词：

ultrafine silver powder; chemical reduction; ascorbic acid; MLCI;

D O I：

10.1016/j.matchemphys.2004.09.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The preparation of ultrafine silver powder with chemical reduction method was investigated. Ascorbic acid was employed as reducing agent. Reaction of AgNO3 with ascorbic acid gives polyhedron monodispersed ultrafine silver powder. Effect of reaction temperature on particles was studied. The average congeris sizes (D-50) reduces linearly from 3.1 mum to 1.0 mum as the reaction temperature increases from 20degreesC to 60degreesC. The silver powder having excellent dispersibility and different size was prepared through different pH value or different dosage surfactant. The TG/DTA of silver was discussed with thermal analyzer. As-prepared silver powder was applied in ferrite multi-layer chip inductor (MLCl). The silver end termination has high adhesion strength, excellent solderability and solder leaching resistance behavior. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：423 / 427

页数：5