Improvements of mechanical properties of WC-ZrO<sub>2</sub> composites with addition of ultrafine porous boron nitride nanofiber

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Improvements of mechanical properties of WC-ZrO2 composites with addition of ultrafine porous boron nitride nanofiber
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Affiliation:1.National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials,South China University of Technology;2.School of Materials Science and Engineering,Hebei University of Technology;3.P R China
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Fund Project:the Natural Science Foundation of China (No.51474108, 51575193, and 51402086), the Hundred Talents Program of Hebei Province (E2014100011), the Key Project of Guangdong Natural Science Foundation (No.2018B030311051), and the Heyuan Science and Technology Project (heke2018009).

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Abstract:

In this study, using spark plasma sintering, an ultrafine porous boron nitride nanofiber-improved WC-ZrO2 composite was prepared. The obtained composites displayed superior properties in terms of hardness and fracture toughness. In particular, the Young’s modulus value increased but did not follow the rule of mixtures for most of ceramics-based composites (up to 692 GPa, close to 700 GPa of pure WC).

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[Ting Cao, Xiaoqiang Li, Jingmao Li, Yang Huang, Tao Song, Shengguan Qu, Liang Liang. Improvements of mechanical properties of WC-ZrO₂ composites with addition of ultrafine porous boron nitride nanofiber[J]. Rare Metal Materials and Engineering,2021,50(3):802~806.]
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Received:February 27,2020
Revised:July 01,2020
Adopted:July 20,2020
Online: April 02,2021
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