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Characterization of spark plasma sintered TiC ceramics reinforced with graphene nano-platelets
被引:40
作者:
Thang Phan Nguyen
[1
,2
]
Pazhouhanfar, Yaghoub
[3
]
Delbari, Seyed Ali
[4
]
Quyet Van Le
[5
]
Shaddel, Shahrzad
[6
]
Pazhouhanfar, Morteza
[3
]
Namini, Abbas Sabahi
[7
,8
]
Shokouhimehr, Mohammadreza
[4
]
Asl, Mehdi Shahedi
[9
]
机构:
[1] Ton Duc Thang Univ, Adv Inst Mat Sci, Lab Adv Mat Chem, Ho Chi Minh City, Vietnam
[2] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam
[3] Aliyazh Sanat Sahand Ipak Co, POB 51576-13536, Tabriz, Iran
[4] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 08826, South Korea
[5] Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam
[6] Sahand Univ Technol, Dept Mat Engn, Tabriz, Iran
[7] Univ Mohaghegh Ardabili, Fac Adv Technol, Dept Engn Sci, Namin, Iran
[8] Sabalan Univ Adv Technol SUAT, Fac Adv Technol, Dept Engn Sci, Namin, Iran
[9] Univ Mohaghegh Ardabili, Dept Mech Engn, Ardebil, Iran
关键词:
TiC;
Graphene;
Characterization;
SPS;
Ceramic;
THERMAL-SHOCK RESISTANCE;
HOT-PRESSING PARAMETERS;
MECHANICAL-PROPERTIES;
MICROSTRUCTURAL DEVELOPMENT;
COMPOSITES;
SINTERABILITY;
DENSIFICATION;
TEMPERATURE;
SEPARATION;
ZRB2;
D O I:
10.1016/j.ceramint.2020.04.189
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
This research aims to scrutinize the impact of graphene additive on the consolidation behavior, microstructure and physical-mechanical qualifications of TiC-based materials. For this purpose, two specimens, namely monolithic TiC and TiC-5 wt% graphene, were produced using the spark plasma sintering (SPS) method at 1900 degrees C. An external pressure of 40 MPa was applied during the sintering, and the ceramics were held at the maximum temperature for 10 min. The characteristics of SPSed samples were studied using scanning electron microscopy (SEM) and X-ray diffraction (XRD). Although adding graphene had no notable effect on the sinterability of TiC, it led to an increment in the flexural strength of graphene-doped sample. The microstructural assessment revealed the positive influence of graphene additive on obtaining a finer microstructure. The phase analysis confirmed the appearance of a non-stoichiometric hexagonal TiCx and different allotropes of carbon in the samples. Finally, the highest values for Vickers hardness (similar to 3130 HV0.1Kg) and flexural strength (similar to 530 MPa) were attained for the monolithic TiC and graphene-reinforced samples, respectively.
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页码:18742 / 18749
页数:8
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