Electro magnetic interference shielding characteristic of silver coated copper powder

被引：16

作者：

Kim, Jung Ju ^{[1
,2
]}

Lee, Hyo Won ^{[1
]}

Dabhade, Vikram V. ^{[1
]}

Kim, Soo Ryong ^{[1
]}

Kwon, Woo Teck ^{[1
]}

Choi, Doo Jin ^{[2
]}

Kim, Hyungsun ^{[3
]}

Kim, Younghee ^{[1
]}

机构：

[1] Korea Inst Ceram Engn & Technol, Seoul 153801, South Korea

[2] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea

[3] Inha Univ, Sch Mat Engn, Inchon 402751, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2010年 / 16卷 / 03期

关键词：

chemical synthesis; powder processing; surface modification; electrical properties; thermal analysis; OXIDATION RESISTANCE; COMPOSITES;

D O I：

10.1007/s12540-010-0619-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present investigation deals with the synthesis of silver coated copper powder for potential application as filler material in conductive polymers for electro magnetic interference (EMI) shielding. Copper powders were obtained by the reaction of cuprous oxide and, hydrazine in a mixed solvent (H2O:ethanol) at various reaction conditions. The cuprous oxide powder was produced by the reaction of CuSO4, NaOH and D-glucose. The synthesized copper powder was silver coated by its reaction with (NH4)(2)SO4, C4H4O6KNa and AgNO3. The prepared powders were characterized by XRD, SEM, TGA and XPS. The coaxial transmission line method was used to measure the EMI shielding effectiveness of the powders. The silver coated copper powders exhibited an improved oxidation resistance and higher EMI shielding effectiveness as compared to the uncoated copper powders.

引用

页码：469 / 475

页数：7

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