Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route

Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route

In this work, a (SiC-AlN)/ZrB<sub>2</sub> composite with outstanding mechanical properties was prepared by using polymer-derived ceramics (PDCs) and hot-pressing technique. Flexural strength reached up to 460 ± 41 MPa, while AlN and ZrB<sub>2</sub> contents were 10 wt%, and 1...

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Main Authors: Aidong Xia, Jie Yin, Xiao Chen, Zhengren Huang, Xuejian Liu, Wei Liu
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Materials
Subjects:
(SiC-AlN)/ZrB<sub>2</sub> composite
polymer-derived ceramics
nano-micron hybrid microstructure
hot pressing
mechanical properties
Online Access:https://www.mdpi.com/1996-1944/14/2/334
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spelling doaj-c349a46646c741d5879900abb3d69e212021-01-12T00:02:10ZengMDPI AGMaterials1996-19442021-01-011433433410.3390/ma14020334Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics RouteAidong Xia0Jie Yin1Xiao Chen2Zhengren Huang3Xuejian Liu4Wei Liu5State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaSchool of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635, ChinaIn this work, a (SiC-AlN)/ZrB<sub>2</sub> composite with outstanding mechanical properties was prepared by using polymer-derived ceramics (PDCs) and hot-pressing technique. Flexural strength reached up to 460 ± 41 MPa, while AlN and ZrB<sub>2</sub> contents were 10 wt%, and 15 wt%, respectively, under a hot-pressing temperature of 2000 °C. XRD pattern-evidenced SiC generated by pyrolysis of polycarbosilane (PCS) was mainly composed by 2H-SiC and 4H-SiC, both belonging to α-SiC. Micron-level ZrB<sub>2</sub> secondary phase was observed inside the (SiC-AlN)/ZrB<sub>2</sub> composite, while the mean grain size (MGS) of SiC-AlN matrix was approximately 97 nm. This unique nano-micron hybrid microstructure enhanced the mechanical properties. The present investigation provided a feasible tactic for strengthening ceramics from PDCs raw materials.https://www.mdpi.com/1996-1944/14/2/334(SiC-AlN)/ZrB<sub>2</sub> compositepolymer-derived ceramicsnano-micron hybrid microstructurehot pressingmechanical properties
collection DOAJ
language English
format Article
sources DOAJ
author Aidong Xia
Jie Yin
Xiao Chen
Zhengren Huang
Xuejian Liu
Wei Liu
spellingShingle Aidong Xia
Jie Yin
Xiao Chen
Zhengren Huang
Xuejian Liu
Wei Liu
Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
Materials
(SiC-AlN)/ZrB<sub>2</sub> composite
polymer-derived ceramics
nano-micron hybrid microstructure
hot pressing
mechanical properties
author_facet Aidong Xia
Jie Yin
Xiao Chen
Zhengren Huang
Xuejian Liu
Wei Liu
author_sort Aidong Xia
title Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
title_short Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
title_full Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
title_fullStr Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
title_full_unstemmed Fabrication of (SiC-AlN)/ZrB<sub>2</sub> Composite with Nano-Micron Hybrid Microstructure via PCS-Derived Ceramics Route
title_sort fabrication of (sic-aln)/zrb<sub>2</sub> composite with nano-micron hybrid microstructure via pcs-derived ceramics route
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2021-01-01
description In this work, a (SiC-AlN)/ZrB<sub>2</sub> composite with outstanding mechanical properties was prepared by using polymer-derived ceramics (PDCs) and hot-pressing technique. Flexural strength reached up to 460 ± 41 MPa, while AlN and ZrB<sub>2</sub> contents were 10 wt%, and 15 wt%, respectively, under a hot-pressing temperature of 2000 °C. XRD pattern-evidenced SiC generated by pyrolysis of polycarbosilane (PCS) was mainly composed by 2H-SiC and 4H-SiC, both belonging to α-SiC. Micron-level ZrB<sub>2</sub> secondary phase was observed inside the (SiC-AlN)/ZrB<sub>2</sub> composite, while the mean grain size (MGS) of SiC-AlN matrix was approximately 97 nm. This unique nano-micron hybrid microstructure enhanced the mechanical properties. The present investigation provided a feasible tactic for strengthening ceramics from PDCs raw materials.
topic (SiC-AlN)/ZrB<sub>2</sub> composite
polymer-derived ceramics
nano-micron hybrid microstructure
hot pressing
mechanical properties
url https://www.mdpi.com/1996-1944/14/2/334
work_keys_str_mv AT aidongxia fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
AT jieyin fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
AT xiaochen fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
AT zhengrenhuang fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
AT xuejianliu fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
AT weiliu fabricationofsicalnzrbsub2subcompositewithnanomicronhybridmicrostructureviapcsderivedceramicsroute
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