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Fabrication and Characterization of Nano Silver Powder Prepared by Spray Pyrolysis

Fabrication and Characterization of Nano Silver Powder Prepared by Spray Pyrolysis

作     者:章桥新 ZHANG Qiaoxin1,2,LIU Hao2,WANG Xiaohui2,SHI Xiaoliang2,DUAN Xinglong2 (1.School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China;2. State Key Laboratory of Advanced Technology for Materials Synthesis & Processing,Wuhan University of Technology,Wuhan 430070,China)

作者机构:School of Mechanical and Electronic EngineeringWuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis & ProcessingWuhan University of Technology 

出 版 物:《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报(材料科学英文版))

年 卷 期:2009年第24卷第6期

页      面:871-874页

核心收录:

学科分类:07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0702[理学-物理学] 

主  题:nano silver powder fabrication characterization spray pyrolysis 

摘      要:Silver powder was fabricated by spray pyrolysis, using 2%-20% AgNO3 solution, 336-500 mL/h flux of AgNO3 solution, 0.28-0.32 MPa flux of carrier gas and in the 620-820 ℃ temperature range. The effects of furnace set temperature, concentration of AgNO3 aqueous solution, flux of AgNO3 aqueous solution as well as carrier gas on the morphology and particle size distribution of silver powder, were investigated. The experimental results showed that with the high concentration of AgNO3 aqueous solution, the average grain size of silver decreased with the increasing of furnace set temperature. But the gain size distribution was not homogenous, the discontinuous grain growth occurred. With the low concentration of AgNO3 aqueous solution, the higher furnace set temperature made the nano sliver grains sintered together to grow. Nano silver powder about 100 nm was fabricated by spray pyrolysis, using 2wt% AgNO3 solutions, 336 mL/h flux of AgNO3 aqueous solution, 0.32 MPa flux of carrier gas at 720 ℃ furnace set temperature.

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