Processing and Properties of ZrB2-Cu Composites Sintered by Hot-Pressing Sintering

Wei Shang; Hai Long Wang; Shi Jing Zhao; Xiao Tong Zhao; Hong Liang Xu; Hong Xia Lu; De Liang Chen; Bing Bing Fan; Rui Zhang

doi:10.4028/www.scientific.net/KEM.602-603.447

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In Situ Preparation and Mechanical Properties of (ZrB₂+ZrC)/Zr₃[Al(Si)]₄C₆ Composites
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Effect of Molding Process on Properties of Laminated ZrB₂-SiC-C_g Ultra High Temperature Ceramics
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Effects of SiC on Oxidation Behavior of ZrB₂-Based Composites with MoSi₂ and SiC Additives
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Synthesis and Analysis of Carbide-Derived Carbon from TiC by Chlorination
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Effects of Ball Milling Processing on Solidified TiC-TiB₂ Composites Prepared by Combustion Synthesis in High Gravity Field
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Processing and Properties of ZrB2-Cu Composites...

Processing and Properties of ZrB₂-Cu Composites Sintered by Hot-Pressing Sintering

Abstract:

ZrB₂-Cu composite is a new electrical contact materials in the integration of high conductivity, high wear resistance and good mechanical strength. In this paper, ZrB₂-Cu composites were prepared by hot-pressing sintering at 800~900 °C under a pressure of 20 MPa.The densification of ZrB₂-Cu composites was improved by the addition of nickel using an electroless metal plating technique. X-ray diffraction and scan electron microscopy were used to analyze the phase and microstructure of ZrB₂-Cu composites. The results showed that ZrB₂-Cu composites with 60 vol % Cu which was sintered at 900 °C had a higher relative density, highest flexural strength of 381 MPa and higher hardness of 2.16 GPa(HV). ZrB₂-Cu composites with 50 vol % Cu which was sintered at 900 °C had higher flexural strength of 297 MPa and the highest hardness of 2.66 GPa.

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Periodical:

Key Engineering Materials (Volumes 602-603)

Pages:

447-450

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.447

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Online since:

March 2014

Authors:

Wei Shang*, Hai Long Wang, Shi Jing Zhao, Xiao Tong Zhao, Hong Liang Xu, Hong Xia Lu, De Liang Chen, Bing Bing Fan, Rui Zhang

Keywords:

Hardness, Hot-Pressing, MMC, ZrB₂

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* - Corresponding Author

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