Microstructure and thermo-mechanical properties of pressureless infiltrated SiCp/Cu composites
Source abstract
Abstract
The microstructure, infiltration mechanism and thermo-mechanical properties of high volume fraction (61%) SiCp/Cu composites produced by pressureless infiltration were investigated. It is found that intensive chemical reaction occurred at the interface between metal and SiC preform. Alloying elements accelerated the dissolution of SiC particles. It is the dissolution of Si that facilitates the wetting and infiltration of copper alloy into porous SiC preform. High infiltration temperature and long exposure time enhanced the degree of interfacial reaction. Thermal conductivity of SiCp/Cu composites was relatively low, mainly due to the intrinsically low thermal conductivity of the matrix. Elastic modulus is insensitive to alloying elements, while bending strength depends strongly on microstructural characteristics and matrix alloying. SiCp/Cu composites exhibit brittle failure mode. Severe interfacial reaction impaired the mechanical properties.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced ceramic materials synthesis · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. The microstructure and the thermal expansion characteristics of Cu/SiCp composites10.1016/S0921-5093(02)00788-8 ↗
2. Role of compound formation in reactive wetting: The Cu/SiC system10.1016/S1359-6454(00)00235-4 ↗
3. Silicon carbide whisker copper matrix composites fabricated by hot pressing copper coated whiskers10.1007/BF01139157 ↗
4. Fabrication of CuSiC metal matrix composites10.1007/s10853-005-2622-3 ↗
5. Schubert T, Brendel A, Schmid K, Koeck T, Ciupinski L. Interfacial design of Cu/SiC composites prepared by powder metallurgy for heat sink applications: Composites Part A 2007;38:2398–2403.10.1016/j.compositesa.2007.08.012 ↗
6. SiC/Cu composites with tungsten coating prepared by powder metallurgy10.1179/174328407X158532 ↗
7. Effect of Mg and Si in the aluminum on the thermo-mechanical properties of pressureless infiltrated SiCp/Al composites10.1016/j.compscitech.2006.11.006 ↗
8. Alloying effects on microstructure and mechanical properties of high volume fraction SiC-particle reinforced Al–MMCs made by squeeze casting infiltration10.1016/j.compscitech.2006.04.005 ↗
9. Liquid metal infiltration into ceramic particle preforms with bimodal size distributions10.1016/j.cossms.2006.02.005 ↗
10. Limiting the development of Al4C3 to prevent degradation of Al/SiCp composites processed by pressureless infiltration10.1016/j.compscitech.2005.07.025 ↗
11. Preparation and properties of pressureless infiltrated SiC and AlN particulate reinforced metal ceramic composites based on bronze and iron alloys10.1016/S0921-5093(02)00044-8 ↗
12. Wetting of silicon carbide by chromium containing alloys10.1016/S1359-6454(98)00037-8 ↗
13. Relationship between wettability and reactivity in Fe/SiC system10.1016/0956-7151(94)00336-G ↗
14. Wetting and bonding of Ni–Si alloys on silicon carbide10.1016/S1359-6454(98)00374-7 ↗
15. Chemical instability of silicon carbide in the presence of transition metals10.1111/j.1151-2916.1996.tb08932.x ↗
16. Spreading of Cu–Si alloys on oxidized SiC in vacuum: experimental results and modeling10.1016/S1359-6454(01)00397-4 ↗
17. Correlation between the oxidation state of α-SiC and its wettability with non-reactive (Sn) or reactive (Ni) metallic components and their binary Si-alloys10.1016/S1359-6454(97)00044-X ↗
18. Wettability and interfacial energies in SiC-liquid metal systems10.1007/BF02403656 ↗
19. Prediction of Si contents to suppress the interfacial reaction in the SiCp/2014Al composite10.1016/S1359-6454(97)00465-5 ↗
20. Prediction of Si contents to suppress the formation of Al4 C3 in the SiCp/Al composite10.1016/S1359-6454(97)00265-6 ↗
21. Reactivity and thermal behaviour of Cu–Si/SiC composites: effects of SiC oxidation10.1179/174328406X131000 ↗
22. Wetting of silicon carbide by Cu–Si alloys10.4028/www.scientific.net/MSF.416-418.487 ↗
23. Elastic properties of ceramic–metal particulate composites10.1016/j.msea.2004.10.009 ↗