The Effect of Holding Time on the Mechanical Properties and Microstructure of Sintered NbC Composite

Duck Soo Kang; Kee Do Woo; Sang Hyuk Kim; In Jin Shon; Ji Young Kim; Sang Hoon Park

doi:10.4028/www.scientific.net/AMR.123-125.803

Paper Titles

Synthesis of Graphene Nanosheets via Thermal Exfoliation of Pretreated Graphite at Low Temperature
p.787

Synthesis of Nanosized Phases from an Atomic Carbon
p.791

Synthesis of Well-Aligned Multi-Walled Carbon Nanotubes by Floating Catalyst Chemical Vapor Deposition
p.795

Temperature Effects on Synthesis of Multi-Walled Carbon Nanotubes by Ethanol Catalyst Chemical Vapor Deposition
p.799

The Effect of Holding Time on the Mechanical Properties and Microstructure of Sintered NbC Composite
p.803

The Efficiency on Mechanical and Thermal Characteristic in Polyurethane/Silica Nanocompounds
p.807

ZnO Nanorod Arrays and Nanowires by Hydrothermal Growth
p.811

A Nondestructive Study on Fiber Layup and Porosity Level in CFRP Composite Laminates Using Ultrasonic Pitch-Catch Method
p.815

An Investigation on Vibration and Thermal Change of High Speed Lathe Processing Using Infrared Thermal Imaging Technique
p.819

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 123-125The Effect of Holding Time on the Mechanical...

The Effect of Holding Time on the Mechanical Properties and Microstructure of Sintered NbC Composite

Abstract:

High frequency induction heated sintering (HFIHS) method is one of the rapid sintering methods. The advantage of rapid sintering method is that grain growth can be prevented during sintering at high temperature. Refinement of grains was known to increase the yield and flow stresses of crystals. The relation between the yield stress and the grain size is known as Hall-Petch relation. NbC-10vol.%Co, Ni and Fe composites were fabricated by HFIHS at 1060°C for 0 and 3 min as holding times under a pressure of 80MPa.The relative density of NbC-10vol.%Co, Ni and Fe composites which were sintered at 1060°C for 0min as holding time under 80MPa were 91.90%, 91.26% and 91.26%, respectively. These composites are difficult to use industrial parts due to low relative density. The longer sintering time was conducted for increasing relative density in this study. Nano-sized specimens, which were calculated grain size by full-width at half maximum (FWHM), can be obtained by HFIHS. The value of hardness and fracture toughness was investigated using 20kgf load Vickers indenter.

You might also be interested in these eBooks

Multi-Functional Materials and Structures III

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 123-125)

Pages:

803-806

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.123-125.803

Citation:

Cite this paper

Online since:

August 2010

Authors:

Duck Soo Kang, Kee Do Woo, Sang Hyuk Kim, In Jin Shon, Ji Young Kim, Sang Hoon Park

Keywords:

Hard Material, High-Energy Ball Milling (HEM), Nanocomposite, Nanostructure, NbC Hard Material, Powder Metallurgy (PM)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] H.O. Pierson, Handbook of Refractory Carbides and �itrides; Properties, Characteristics, Processing and Applications, Noyes Publications, Westwood, New Jersey, U.S.A., (1996) p.93.

Google Scholar

[2] H. E. Exner, Int. Metall. Rev. 4 (1979) 149-173.

Google Scholar

[3] S. Berger, R. Porat, R. Rosen, Prog. Mater Sci., 42 (1997) 311-320. C.

Google Scholar

[4] Suryanarayana, M. Grant Norton, X-ray Diffraction A Practical Approach, Plenum Press, New York, (1988).

Google Scholar

[5] H.C. Kim, I.J. Shon, Z.A. Munir, J. Mater. Sci. 40 (2005) 2849-2854.

Google Scholar

[6] H.C. Kim, I.J. Shon, I.Y. Ko, J.K. Yoon, J.M. Doh, Metals and Mat. Int., 13 (2007) 39-46.

Google Scholar

[7] G.R. Anstis, P. Chantikul, B.R. Lawn, D.B. Marshall, J. Am. Ceram. Soc., 64(1981) 533-538.

Google Scholar

[8] J. Fleischer, T. Masuzawa, J. Schmidt, M. Knoll, J. Mater. Proce. Tech. 149 (2004) 246-249.

Google Scholar

[9] J.E. Garay, U. Amselmi-Tamburini, Z.A. Munir, Acta Materialia, 51(2003) 4487-4495.

Google Scholar