Thermal and Mechanical Properties of Graphene-Titanium Composites Synthesized by Microwave Sintering

The x wt%graphene-Ti composites（x = 0,0.2,0.3 and 0.4） were obtained using the powder metallurgy method.The X-ray diffraction results demonstrated that the peak intensity of graphene increased monotonically with increasing graphene content.Furthermore,the number of grain boundary and interface betwe...

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Bibliographic Details
Published in:Acta metallurgica sinica : English letters 2016-08, Vol.29 (8), p.707-713
Main Authors: Yang, Wen-Zhi, Huang, Wei-Ming, Wang, Zhi-Feng, Shang, Fu-Jun, Huang, Wei, Zhang, Bao-Yu
Format: Article
Language:English
Subjects:
Aspect ratio
Carbon fibers
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Compressive strength
Copper
Corrosion and Coatings
Density
Grain boundaries
Grain growth
Grain size
Graphene
Heat conductivity
Materials Science
Mechanical properties
Metallic Materials
Microscopy
Microwave sintering
Morphology
Nanocomposites
Nanotechnology
Organometallic Chemistry
Plasma sintering
Powder metallurgy
Sintering (powder metallurgy)
Spectroscopy/Spectrometry
Temperature
Thermal conductivity
Thermodynamic properties
Titanium
Tribology
制备
力学性能
平均晶粒尺寸
微波烧结法
热性能
特征矩阵
石墨含量
钛基复合材料
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Summary:The x wt%graphene-Ti composites（x = 0,0.2,0.3 and 0.4） were obtained using the powder metallurgy method.The X-ray diffraction results demonstrated that the peak intensity of graphene increased monotonically with increasing graphene content.Furthermore,the number of grain boundary and interface between graphene and matrix increased as graphene increased,which led to a sharp rise of thermal resistances.The thermal conductivity and specific heat capacity of composites initially decreased drastically with addition of graphene,but then increased with increasing graphene content from 0.2 to 0.4 wt%.This phenomenon was connected with the graphene content and the characteristics of Ti matrix（pores,grain boundary and interface between graphene and matrix）.The variation of the compressive strength of composites was attributed to the interaction effects of the average grain size of the Ti matrix（d_m） and the volume fraction（V_f） and aspect ratio（A） of graphene.
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-016-0445-7