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250508s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202505639
|2 doi
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|a pubmed25n1388.xml
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|a (DE-627)NLM387605924
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|a (NLM)40285377
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
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|a Wu, Xueli
|e verfasserin
|4 aut
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|a Significantly Enhanced Density and Mechanical Strength of Carbon/Graphite Blocks by Waste Gas Pressurized Sintering
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 26.04.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2025 Wiley‐VCH GmbH.
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|a Carbonization under pressure is crucial for enhancing carbon/graphite materials. However, conventional pressure sintering, relying on mechanical or external gas pressure, often results in incomplete densification and structural defects due to uncontrolled volatile gas release. Herein, high-density and high-strength self-sintered carbon block in enclosed-space (SCB-E) are produced using waste gas pressurization (WGP) derived from green petroleum coke (GPC). This method can enhance the formation of C─O─C and C═O bonds by promoting dehydration polymerization reaction, which induces interfacial bonding in the carbonization process. Consequently, a decreased mass loss, increased volume shrinkage, and reduced porosity are observed, thereby endowing the obtained SCB-E with significantly improved density and mechanical strength. Specifically, the compressive and flexural strengths of SCB-E are 6.36 and 5.77 times higher than SCB-O sintered in open-space, respectively, while the corresponding graphite block (SG-E) achieves 7.74 and 4.58 times greater compressive and flexural strengths than SG-O. Notably, WGP not only enhances the yield of crack-free carbon blocks and supports scale-up production but also integrates seamlessly with traditional kneading processes to produce high-density, high-strength carbon blocks (CB-E). The current approach offers an innovative and important platform for enhancing the density and mechanical properties of bulk materials
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|a Journal Article
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|a carbon/graphite blocks
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|a gas pressurized sintering
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|a green petroleum coke
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|a pore structure
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|a self‐sintering
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|a Li, Run
|e verfasserin
|4 aut
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| 700 |
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|a Tan, Jiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Song, Xianyin
|e verfasserin
|4 aut
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| 700 |
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|a Zhong, Zihao
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Kehong
|e verfasserin
|4 aut
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| 700 |
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|a Li, Chongwei
|e verfasserin
|4 aut
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| 700 |
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|a Gong, Pei
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Yanli
|e verfasserin
|4 aut
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| 700 |
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|a Tu, Chuanjun
|e verfasserin
|4 aut
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| 700 |
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|a Jiang, Changzhong
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2025) vom: 25. Apr., Seite e2505639
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g year:2025
|g day:25
|g month:04
|g pages:e2505639
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|u http://dx.doi.org/10.1002/adma.202505639
|3 Volltext
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