.png){kind=icon}
.png){kind=icon}
Return
Microstructure and Mechanical Properties of Cu-Graphite-TiN Metal Matrix Composites Prepared by Microwave Sintering Technique
.png){kind=icon}
PRE
AI
T
L
W
G
W
DOI：10.1134/S1067821225600760.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this paper, Cu-graphite-TiN metal matrix composites were fabricated by adding titanium nitride particles (TNPs), as the reinforcing phase, to copper matrix graphite (Cu-graphite) composites. TNPs reinforced Cu-graphite composites were prepared by powder metallurgy (PM). Cu-graphite-TiN metal matrix composites with varying TNPs contents (0, 1, 3, 5, 10, 15 wt %) were prepared by conventional sintering (CS) and microwave sintering (MWS), respectively. The effects of CS and MWS on microstructure, density, porosity, mechanical properties, as well as friction and wear properties of Cu-graphite-TiN metal matrix composites were compared. The results show that the microwave sintered samples have a finer pore structure, and there is an obvious diffusion layer interface between TNPs and matrix. Under the same content of TNPs, the microwave sintered composites have lower porosity, wear loss, friction coefficient and higher hardness and compressive strength. When TNPs content is 3 wt %, the porosity, friction coefficient, wear mass, hardness and compressive strength of microwave sintered samples are 3.458%, 0.216, 0.8 mg, 80.62 HV and 540 MPa, respectively. MWS improves the interface bonding between TNPs and the metal matrix, which makes wear marks finer and smoother, and the wear marks distribution is more uniform.
Keywords:
microwave sintering
titanium nitride particles
copper matrix composite
microstructure and mechanical properties
Journal
R
IF:
0.9
Papers:
37
Citations:
0
Organization
Cited Papers