Mechanical and Electrical Properties of Carbon Nanofiber Dispersed Ti Composite Formed by Compression Shearing Method at Room Temperature

Noboru Nakayama; M. Horita; H. Miki; T. Takagi; H. Takeishi

doi:10.4028/www.scientific.net/MSF.783-786.2485

Paper Titles

Bimodal and Monomodal Diamond Particle Effect on the Thermal Conductivity of Diamond Particle Dispersed Al Matrix Composite Produced by SPS
p.2462

Influence of Co on Strength of Cu-Ni-Co-Si Alloy
p.2468

Near-Net Shaping of Silicon for Optical Lens by One-Shot Pressing at Temperature just below Silicon Melting Point and Improvement of Infrared Transmittance by Primary Recrystallization
p.2474

Preparation of Textured Li_1+x-yNb_1-x-3yTi_x+4yO₃ Solid Solution in a High Magnetic Field
p.2480

Mechanical and Electrical Properties of Carbon Nanofiber Dispersed Ti Composite Formed by Compression Shearing Method at Room Temperature
p.2485

Development of Nickel Based Superalloys for Advanced Turbine Engines
p.2491

Effect of Zr Addition on Magnetostriction of Tb-Dy-Fe Alloys Prepared by Micro-Pulling-Down Method
p.2497

Amorphousization and Superconducting Property for Zr-Nb Based Alloy
p.2503

Polymer Matrix Composites with Shape Memory Properties
p.2509

HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Mechanical and Electrical Properties of Carbon...

Mechanical and Electrical Properties of Carbon Nanofiber Dispersed Ti Composite Formed by Compression Shearing Method at Room Temperature

Abstract:

The materials used for fuel cell separators require a bending strength of more than 70 MPa. Therefore, the contact resistance is required to be 10 mΩ∙cm², respectively. In the present study, vapor grown carbon nanofibers (VGCF) were added to Ti composite using the compression shearing method at room temperature. The mechanical properties of the compacted powder were then measured. The microstructure of the Ti/VGCF composite material was Ti with dispersed VGCF (not alloyed). In addition, the bending strength of all Ti/VGCF composites was more than 800 MPa, and the bending strength of 0-1 vol% VGCF composites was twice as much as that for Ti rolled material (ASTM grade 2). Ti/VGCF thin plates also exhibited excellent electrical property. The contact resistance of 5 vol% VGCF was found to be three times smaller than that of Ti rolled material. These properties make the Ti/VGCF composite material suitable as a separator material.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

2485-2490

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.2485

Citation:

Cite this paper

Online since:

May 2014

Authors:

Noboru Nakayama*, M. Horita, H. Miki, T. Takagi, H. Takeishi

Keywords:

Bending Test, Carbon Nanofiber, Composite Material, Hardness, Mechanical Property, Powder metallurgy, Severe Plastic Deformation, Titanium

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] H. Nakayama, M. Hori, Development Status and Future of Fuel Cell Systems, Electric furnace steel (in japan), 77-4, (2006), pp.293-300.

DOI: 10.4262/denkiseiko.77.293

Google Scholar

[2] S. Miyano, T. Fukutsuka, Y. Matsuo, Y. Sugie, Preparation of carbon-coated stainless steels and their properties as bipolar plate materials of polymer electrolyte fuel cells, Carbons (in japan), 247 (2011) pp.54-58.

DOI: 10.7209/tanso.2011.54

Google Scholar

[3] H. Takeishi. N. Nakayama, H. Miki. Consolidation with Grain Refinement by Compression Shearing Method under Room Temperature, J. Soc. Mat. Sci in jpn, 54-3 (2005) pp.233-238.

DOI: 10.2472/jsms.54.233

Google Scholar

[4] H. Miki, N. Nakayama, H. Takeishi: Dynamic Molding of Powder Particles at Room Temperature, Materials Science Forum. 706-709 (2012) p.1955-(1960).

DOI: 10.4028/www.scientific.net/msf.706-709.1955

Google Scholar

[5] M. Horita, N, Nakayama, H. Miki, T. Miyazaki, and H. Takeishi, Steel international special edition of Metal forming 2012, (2012) pp.803-806.

Google Scholar

[6] E.O. Hall, The Deformation and Ageing of Mild Steel : II, Proc. Phys. Soc, B 64 (1951), pp.742-747.

DOI: 10.1088/0370-1301/64/9/302

Google Scholar

[7] N.J. Petch, The cleavage strength of polycrystals, J. Iron Steel Ins,. 174 (1953), pp.25-28.

Google Scholar