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  4. Microstructure and properties of Cu-Ti alloy infiltrated chopped Cf reinforced ceramics composites
 
Zitierlink DOI
10.26092/elib/2601
Verlagslink DOI
10.1016/j.ceramint.2017.09.053

Microstructure and properties of Cu-Ti alloy infiltrated chopped Cf reinforced ceramics composites

Veröffentlichungsdatum
2017-10-14
Autoren
Xiao, Peng  
Lu, Yu-hai  
Liu, Yi-zhong  
Li, Zhuan  
Fang, Hua-chan  
Zhou, Wei  
Saint Martin Almeida, Renato  
Li, Yang  
Zusammenfassung
Novel friction composites (C/C-Cu5Si-TiC) were prepared via reactive melt infiltration (RMI) of Cu-Ti alloy into porous C/C-SiC composites. The microstructure, physical properties and tribological behaviors of the novel material were studied. Results were compared to conventional C/C-SiC composites produced by liquid silicon infiltration(LSI). The resultant composite showed the microstructure composed of Cu5Si matrix reinforced with TiC particles and intact C/C structures. Most importantly, the composite did not present traces of free Si. As a result, the C/C-Cu5Si-TiC composite showed higher flexural strength, impact toughness and thermal diffusivity in comparison to C/C-SiC composites. Tribological properties were measured using 30CrSiMoVA as a counterpart. In general, the C/C-Cu5Si-TiC composites showed lower coefficient of friction(COF), but higher wear resistance and frictional stability. The improved wear resistance of the C/C-Cu5Si-TiC composites is credited to the formation of friction films from Cu5Si matrix. Other deformation and wear mechanisms are also described
considering the microstructural observations.
Schlagwörter
Chopped fibers architecture

; 

Microstructure

; 

Tribological property

; 

Cu-Ti alloy

; 

Reactive melt infiltratio
Verlag
Elsevier {BV}
Institution
Universität Bremen  
Fachbereich
Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04)  
Institute
Fachgebiet 17: Keramische Werkstoffe und Bauteile  
Dokumenttyp
Artikel/Aufsatz
Zeitschrift/Sammelwerk
Ceramics International  
Band
43
Heft
18
Startseite
16628
Endseite
16637
Seitenzahl
10
Zweitveröffentlichung
Ja
Dokumentversion
Postprint
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
Sprache
Englisch
Dateien
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Vorschaubild
Name

XIAO - Microstructure and properties of Cu-Ti alloy.pdf

Size

3.3 MB

Format

Adobe PDF

Checksum

(MD5):2789f6075a398850d155fec16f61d7dc

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