Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-28T12:09:42.575Z Has data issue: false hasContentIssue false
  • English
  • Français

Recent Advances on Bulk Tantalum Carbide Produced by Solvothermal Synthesis and Spark Plasma Sintering

Published online by Cambridge University Press:  28 February 2013

Braeden M. Clark ,
James P. Kelly  and
Olivia A. Graeve
Braeden M. Clark
Affiliation:
Kazuo Inamori School of Engineering, Alfred University Alfred, NY 14802, U.S.A.
James P. Kelly
Affiliation:
Kazuo Inamori School of Engineering, Alfred University Alfred, NY 14802, U.S.A.
Olivia A. Graeve*
Affiliation:
Kazuo Inamori School of Engineering, Alfred University Alfred, NY 14802, U.S.A.
*
*Author to whom correspondence should be addressed: Email: [email protected], Tel: (607) 871-2749, Fax: (607) 871-2354, URL: http://people.alfred.edu/~graeve/
Get access

Abstract

The sintering of tantalum carbide nanopowders by spark plasma sintering (SPS) is investigated. The washing procedure for the powders is modified from previous work to eliminate excess lithium in the powders that is left over from the synthesis process. The sintering behavior of the nanopowders is investigated by X-ray diffraction and scanning electron microscopy by studying specimens that were sintered to different temperatures. To improve the homogeneity of the microstructure of the specimens, milling procedures were implemented. Vaporization during sintering is observed, and the usefulness of carbon additions and systematic decreases in temperature to curb this behavior was explored. Future experiments to achieve full density and to maintain a nanostructure of the specimens include sintering with higher pressures, lower temperatures, and longer dwell times. Additives for maintaining a nanostructure and developing suitable high-temperature properties are also discussed.

Keywords

Csinteringchemical synthesis
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1485: Symposium 7D – Advanced Structural Materials—2012 , 2012 , pp. 9 - 20
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Dashora, A. and Ahuja, B.L., Electronic Structure, Compton Profiles and Optical Properties of TaC and TaN, Radiat. Phys. Chem., 79, 1103–10 (2010).CrossRefGoogle Scholar
Desmaison-Brut, M., Alexandre, N., and Desmaison, J., Comparison of the Oxidation Behaviour of Two Dense Hot Isostatically Pressed Tantalum Carbide (TaC and Ta2C) Materials, J. Eur. Ceram Soc., 17, 1325–34 (1997).CrossRefGoogle Scholar
Shon, I.-J., Lee, D.-M., Doh, J.-M., Yoon, J.-K., and Ko, I.-Y., Consolidation and Mechanical Properties of Nanostructured MoSi2–SiC–Si3N4 from Mechanically Activated Powder by High Frequency Induction Heated Sintering, Mater. Sci. Eng., A, 528, 1212–5 (2011).CrossRefGoogle Scholar
Silvestroni, L., Bellosi, A., Melandri, C., Sciti, D., Liu, J.X., and Zhang, G.J., Microstructure and Properties of HfC and TaC-Based Ceramics Obtained by Ultrafine Powder, J. Eur. Ceram. Soc., 32, 619–27 (2011).CrossRefGoogle Scholar
Hahn, H. and Averback, R.S., High Temperature Mechanical Properties of Nanostructured Ceramics, Nanostruct. Mater., 1, 95–100 (1992).CrossRefGoogle Scholar
Hungría, T., Amorín, H., Algueró, M., and Castro, A., Nanostructured Ceramics of BiSCO3–PbTiO3 with Tailored Grain Size by Spark Plasma Sintering, Scr. Mater., 64, 97–100 (2011).CrossRefGoogle Scholar
Lamas, D.G., Bianchetti, M.F., Cabezas, M.D., and de Reca, N.E.W., Nanostructured Ceramic Materials: Applications in Gas Sensors and Solid-Oxide Fuel Cells, J. Alloys Compd., 495, 548–51 (2010).CrossRefGoogle Scholar
Bowen, P. and Carry, C., From Powders to Sintered Pieces: Forming, Transformations and Sintering of Nanostructured Ceramic Oxides, Powder Technol., 128, 248–55 (2002).CrossRefGoogle Scholar
Clark, B.M., Kelly, J.P., and Graeve, O.A., Exploring the Synthesis Parameters and Spark Plasma Sintering of Tantalum Carbide Powders Prepared by Solvothermal Synthesis, Mater. Res. Soc. Symp. Proc., 1373, 7–17 (2012).CrossRefGoogle Scholar
Kelly, J.P., Kanakala, R., and Graeve, O.A., A Solvothermal Approach for the Preparation of Nanostructured Carbide and Boride Ultra-high Temperature Ceramics, J. Am. Ceram. Soc., 93, 3035–8 (2010).CrossRefGoogle Scholar
Kelly, J.P. and Graeve, O.A., Statistical Experimental Design Approach for the Solvothermal Synthesis of Nanostructured Tantalum Carbide Powders, J. Am. Ceram. Soc., 94, 1706–15 (2011).CrossRefGoogle Scholar
Bowman, A.L., The Variation of Lattice Parameter with Carbon Content of Tantalum Carbide, J. Phys. Chem., 65, 1596–8 (1961).CrossRefGoogle Scholar