Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor
In this study, the joining of silicon carbide (SiC) ceramics was achieved via a Si–C reaction bonding method using the phenolic resin (PF)–MgCl<sub>2</sub> system as the carbon precursor. Specifically, by adding MgCl<sub>2</sub> to the phenolic resin mixture, the average pore...
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MDPI AG
2022-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/12/4242 |
| _version_ | 1797484871824703488 |
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| author | Xishi Wu Qing Huang Yunzhou Zhu Zhengren Huang |
| author_facet | Xishi Wu Qing Huang Yunzhou Zhu Zhengren Huang |
| author_sort | Xishi Wu |
| collection | DOAJ |
| description | In this study, the joining of silicon carbide (SiC) ceramics was achieved via a Si–C reaction bonding method using the phenolic resin (PF)–MgCl<sub>2</sub> system as the carbon precursor. Specifically, by adding MgCl<sub>2</sub> to the phenolic resin mixture, the average pore size of the product of carbonization of the PF resin mixture increased from 14 ± 5 nm to 524 ± 21 nm, which was beneficial for the infiltration of molten silicon at high temperature. The microstructure of the joined specimens and the effect of the inert filler on the joint strength were investigated. It was demonstrated that SiC–SiC joints with strong interfacial bonding and high flexural strength could be obtained by the Si–C reaction bonding method using a phenol formaldehyde resin/alcohol sol-gel system as the carbon precursor. The flexural strength of the joined specimens reached the highest value, i.e., 308 ± 27 MPa when the solid loading of the inert filler was 26%. Overall, stable joining of silicon carbide ceramics was achieved by the proposed method, which has significance for realizing the preparation of complex-shaped or large silicon carbide ceramic parts. |
| first_indexed | 2024-03-09T23:10:44Z |
| format | Article |
| id | doaj.art-701e57dfb10a4a1b99494a34940f08cb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:10:44Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-701e57dfb10a4a1b99494a34940f08cb2023-11-23T17:45:12ZengMDPI AGMaterials1996-19442022-06-011512424210.3390/ma15124242Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon PrecursorXishi Wu0Qing Huang1Yunzhou Zhu2Zhengren Huang3Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaEngineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, ChinaEngineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaIn this study, the joining of silicon carbide (SiC) ceramics was achieved via a Si–C reaction bonding method using the phenolic resin (PF)–MgCl<sub>2</sub> system as the carbon precursor. Specifically, by adding MgCl<sub>2</sub> to the phenolic resin mixture, the average pore size of the product of carbonization of the PF resin mixture increased from 14 ± 5 nm to 524 ± 21 nm, which was beneficial for the infiltration of molten silicon at high temperature. The microstructure of the joined specimens and the effect of the inert filler on the joint strength were investigated. It was demonstrated that SiC–SiC joints with strong interfacial bonding and high flexural strength could be obtained by the Si–C reaction bonding method using a phenol formaldehyde resin/alcohol sol-gel system as the carbon precursor. The flexural strength of the joined specimens reached the highest value, i.e., 308 ± 27 MPa when the solid loading of the inert filler was 26%. Overall, stable joining of silicon carbide ceramics was achieved by the proposed method, which has significance for realizing the preparation of complex-shaped or large silicon carbide ceramic parts.https://www.mdpi.com/1996-1944/15/12/4242SiC ceramicjoining technologyMgCl<sub>2</sub>phenolic resin/alcohol carbon precursorgrains and interfaces |
| spellingShingle | Xishi Wu Qing Huang Yunzhou Zhu Zhengren Huang Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor Materials SiC ceramic joining technology MgCl<sub>2</sub> phenolic resin/alcohol carbon precursor grains and interfaces |
| title | Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor |
| title_full | Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor |
| title_fullStr | Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor |
| title_full_unstemmed | Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor |
| title_short | Joining of SiC Ceramic by Si–C Reaction Bonding Using Organic Resin as Carbon Precursor |
| title_sort | joining of sic ceramic by si c reaction bonding using organic resin as carbon precursor |
| topic | SiC ceramic joining technology MgCl<sub>2</sub> phenolic resin/alcohol carbon precursor grains and interfaces |
| url | https://www.mdpi.com/1996-1944/15/12/4242 |
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