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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201901803
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|a eng
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| 100 |
1 |
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|a Jiang, Qiang-Guo
|e verfasserin
|4 aut
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|a Strong and Tough Glass with Self-Dispersed Nanoparticles via Solidification
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|c 2019
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|a Text
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|a ƒaComputermedien
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Glassy materials can be broadly defined as any amorphous solid, which are important in nature and have significant societal value for their applications in daily life and industry. Although many methods have been applied, the fracture toughness of traditional glasses is still very low due to intrinsic brittleness, significantly limiting their use for structural applications. While nanoelements may be added into glasses and ceramics to form nanocomposites with enhanced properties, it is extremely difficult to distribute and disperse them inside the liquid glass/ceramic matrix with traditional processing methods. It is shown that a strong and tough glass can be fabricated through a direct-solidification process using a nanoparticle self-dispersion mechanism in a glass melt (2MgO·2Al2 O3 ·5SiO2 ) with the assistance of B2 O3 , delivering a 6.1% strain limit and strength up to E/14 (E is elastic modulus), which is close to the theoretical limit of E/10 and one of the highest among all materials reported so far. The fracture toughness of the glass with 30 vol% SiC nanoparticles is significantly higher than any other inorganic glass tested under similar conditions. This new method opens up remarkable opportunities for glass and ceramic research, manufacturing, and applications
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|a Journal Article
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|a fracture toughness
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|a glasses
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|a nanocomposites
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|a solidification processing
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|a Cao, Chezheng
|e verfasserin
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|a Lin, Ting-Chiang
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| 700 |
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|a Wu, Shanghua
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| 700 |
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|a Li, Xiaochun
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|t Advanced materials (Deerfield Beach, Fla.)
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|g 31(2019), 33 vom: 21. Aug., Seite e1901803
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|g volume:31
|g year:2019
|g number:33
|g day:21
|g month:08
|g pages:e1901803
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