A Comparison of the Electrical and Thermal Behavior of ZrO2-Ni Interpenetrating Phase Composite Produced by Microwave and Conventional Sintering

Tehreem Kanwal; Rub Nawaz Shahid; Naeem Ul Haq Tariq; Fahad Ali; M. A. Rafiq; Muhammad Iqbal; J.I. Akhter; Bin Awais Hasan

doi:10.4028/www.scientific.net/KEM.510-511.293

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 510-511A Comparison of the Electrical and Thermal...

A Comparison of the Electrical and Thermal Behavior of ZrO₂-Ni Interpenetrating Phase Composite Produced by Microwave and Conventional Sintering

Abstract:

The ceramic-metal composites that have all phases continuous throughout the structure are known as Interpenetrating Phase Composites (IPCs) and they have many applications in various fields. In this investigation ZrO₂-Ni IPCs of varied compositions were synthesized using tubular furnace and microwave furnace routs. Samples were Characterized using BET surface area, Pycnometer density, dilatometry and scanning electron microscopy. The Electrical parameters of the composites were measured using impedance spectrometer. Results indicate that threshold percolation reached at 40 volume percent of Ni in both cases. Moreover, no significant difference was observed in BET surface area and CTE of composites prepared by conventional and microwave sintering processes.

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Key Engineering Materials (Volumes 510-511)

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293-300

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.510-511.293

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Online since:

May 2012

Authors:

Tehreem Kanwal, Rub Nawaz Shahid, Naeem Ul Haq Tariq, Fahad Ali, M. A. Rafiq, Muhammad Iqbal, J.I. Akhter, Bin Awais Hasan

Keywords:

Electrical Properties, Interpenetrating Phase Composite, Microwave Sintering, Percolation Limit, Powder Processing, Scanning Electron Microscope (SEM), Thermal Property, Zirconia-Ni Composites

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