Skip to main content Accessibility help
×
Home

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

  • Braeden M. Clark (a1), James P. Kelly (a1) and Olivia A. Graeve (a1)

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.

Copyright

Corresponding author

*Author to whom correspondence should be addressed: Email: graeve@alfred.edu, Tel: (607) 871-2749, Fax: (607) 871-2354, URL: http://people.alfred.edu/~graeve/

References

Hide All
[1] Dashora, A. and Ahuja, B.L., Electronic Structure, Compton Profiles and Optical Properties of TaC and TaN, Radiat. Phys. Chem., 79, 1103–10 (2010).
[2]. 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).
[3]. 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).
[4]. 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).
[5]. Hahn, H. and Averback, R.S., High Temperature Mechanical Properties of Nanostructured Ceramics, Nanostruct. Mater., 1, 95100 (1992).
[6]. 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, 97100 (2011).
[7]. 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).
[8]. Bowen, P. and Carry, C., From Powders to Sintered Pieces: Forming, Transformations and Sintering of Nanostructured Ceramic Oxides, Powder Technol., 128, 248–55 (2002).
[9]. 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, 717 (2012).
[10]. 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).
[11]. 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).
[12]. Bowman, A.L., The Variation of Lattice Parameter with Carbon Content of Tantalum Carbide, J. Phys. Chem., 65, 1596–8 (1961).

Keywords

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

  • Braeden M. Clark (a1), James P. Kelly (a1) and Olivia A. Graeve (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed