| Autor: |
Wei Li, Hejun Li, Kezhi Li, Jie Wang, Zhaoqian Li, Xiao-bin Ren |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Materials & Design. 44:346-353 |
| ISSN: |
0261-3069 |
| DOI: |
10.1016/j.matdes.2012.07.060 |
| Popis: |
Silica carbide modified carbon cloth laminated C–C composites have been successfully joined to lithium–aluminum–silicate (LAS) glass–ceramics using magnesium–aluminum–silicate (MAS) glass–ceramics as interlayer by vacuum hot-press technique. The microstructure, mechanical properties and fracture mechanism of C–C/LAS composite joints were investigated. SiC coating modified the wettability between C–C composites and LAS glass–ceramics. Three continuous and homogenous interfaces (i.e. C–C/SiC, SiC/MAS and MAS/LAS) were formed by element interdiffusions and chemical reactions, which lead to a smooth transition from C–C composites to LAS glass–ceramics. The C–C/LAS joints have superior flexural property with a quasi-ductile behavior. The average flexural strength of C–C/LAS joints can be up to 140.26 MPa and 160.02 MPa at 25 °C and 800 °C, respectively. The average shear strength of C–C/LAS joints achieves 21.01 MPa and the joints are apt to fracture along the SiC/MAS interface. The high retention of mechanical properties at 800 °C makes the joints to be potentially used in a broad temperature range as structural components. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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