Paper Title:
Preparation and Characterization of Electroless Co-Ni Coated ZrO2 Powder for Microwave Absorbing
  Abstract

Co-Ni coated ZrO2 composite powder was prepared by an optimized ultrasonic electroless plating process to obtain good microwave absorption properties in GHz region. Aggradation mechanism of electroless Co-Ni alloy was analyzed and the principal influencing factors on the depositing rate were investigated by weighting-in-powder. The metallized powder was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and vector network analyzer. Results showed that ultrafine ZrO2 powder pretreated with sensitization and activation were homogeneously deposited with Co-Ni coating at 358K and pH value of 9, immerged in the optimal plating bath using NaH2PO2 as reductant. The Co-Ni coating deposited in the alkaline plating bath had the depositing rate of above 6µm/h and the average weight ratio of 5.5 for Co/Ni. The new metallized powder was endowed high microwave absorbing properties; the maximum reflection loss reaches to -23dB at the frequency of 9.40 GHz.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
1290-1294
DOI
10.4028/www.scientific.net/AMR.97-101.1290
Citation
J. H. Jiang, F. M. Lu, A. B. Ma, J. Z. Zuo, Y. Gao, "Preparation and Characterization of Electroless Co-Ni Coated ZrO2 Powder for Microwave Absorbing", Advanced Materials Research, Vols. 97-101, pp. 1290-1294, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Tae Ho Shin, Ji Heang Yu, Shi Woo Lee, In Sub Han, Doo Won Seo, Ki Seok Hong, Sang Kuk Woo, Sang Hoon Hyun
1114
Authors: Ming Ming Lan, De Yuan Zhang, Jun Cai, Wen Qiang Zhang, Hai Yang Li
Abstract:In this paper, microorganism cells (Spirulina platens) were used as forming templates for the fabrication of the helical functional particles...
531
Authors: Xiao Yun Zhu, Man Dong, Xu Xiao Yi
Abstract:Flake copper powder is coated with silver by using a solution containing [Ag (NH3)]+. Factors such as copper particle...
251
Authors: San Ming Du, Yong Ping Niu, Yong Zhen Zhang
Chapter 5: Coatings and Surface Engineering
Abstract:In the present study, 20 Wt. % ZrO2-Al2O3-17 wt.% TiO2 powders were sprayed using a plasma-spray...
420
Authors: Shun Qi Zheng, Xiao Jing Li, Li Ping Zhu, Yun Chen, Jian Min Luo
Chapter 1: Alloy and Nanometer Materials
Abstract:Micro-arc oxidation (MAO) coatings were synthesized on MB3 magnesium alloy substrate. Two different electrolyte (Ⅰ) and electrolyte (Ⅱ) were...
54