Abstract
We have studied the mechanical properties of niobium pentoxide and tantalum pentoxide ceramics prepared by a conventional ceramic processing technique and by exposure to high-intensity light (HIL). The results demonstrate that, after HIL exposure in an optical furnace, the niobium pentoxide and tantalum pentoxide ceramics possess enhanced microhardness and improved mechanical properties (strength, fracture toughness, and brittle microstrength) owing to the formation of fractal micro- and nanostructures. With increasing exposure intensity, the strength of the Nb2O5 and Ta2O5 ceramics increases.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Andrievskii, R.A., Preparation and Properties of Nanocrystalline and Refractory Compounds, Usp. Khim., 1994, no. 5, pp. 431–448.
Kashcheev, I.D. and Strelov, K.K., Teoreticheskie osnovy tekhnologii ogneupornykh materialov (Theoretical Principles of the Technology of Refractory Materials), Moscow: Metallurgiya, 1996, p. 608.
Palatnikov, M.N., Shcherbina, O.B., Frolov, A.A., et al., Effect of High-Intensity Light on the Micro- and Nano-structuring and Thermal Expansion of Ta2O5 and Nb2O5 Ceramics, Inorg. Mater., 2010, vol. 46, no. 6, pp. 683–690.
Useinov, A.S., A Nanoindentation Method for Measuring the Young Modulus of Superhard Materials Using a NanoScan Scanning Probe Microscope, Instrum. Eksp. Tekh., 2004, no. 1, pp. 119–123.
Regel’, V.R., Slutsker, A.I., and Tomashevskii, E.E., Kineticheskaya priroda prochnosti tverdykh tel (Kinetic Nature of the Strength of Solids), Moscow, 1974, p. 560.
Blank, V., Popov, M., Lvova, N., et al., Nano-Sclerometry Measurements of Superhard Materials and Diamond Hardness Using Scanning Force Microscope with the Ultrahard Fullerite C60 Tip, J. Mater. Res., 1997, vol. 12, no. 11, pp. 3109–3114.
Useinov, S.S. Solov’ev, V.V., Gogolinskii, K.V., et al., Assessing the Mechanical Properties of Materials with a Nanometer Spatial Resolution, Nanoindustriya, 2010, no. 2 (20), pp. 30–35.
Kolesnikov, Yu.V. and Morozov, E.M., Mekhanika kontaktnogo razrusheniya (Mechanics of Contact Fracture), Moscow: Nauka, 1989, p. 220.
Oliver, W.C. and Pharr, G.M., An Improved Technique for Determining Hardness and Elastic Modulus Using Load and Displacement Sensing Indentation Experiments, J. Mater. Res., 1992, vol. 7, pp. 1564–1583.
Andrievskii, R.A. and Spivak, I.I., Prochnost’ tugoplavkikh soedinenii i materialov na ikh osnove (Strength of Refractory Compounds and Related Materials), Chelyabinsk: Metallurgiya, 1989, p. 368.
Prikhod’ko, V.M., Petrova, L.G., and Chudina, O.V., Metallofizicheskie osnovy razrabotok uprochnyayushchikh tekhnologii (Metal-Physical Principles of Hardening), Moscow: Mashinostroenie, 2003, p. 384.
Jianghong Gong, Yufeng Chen, and Chunyan Li, Statistical Analysis of Fracture Toughness of Soda-Lime Glass Determined by Indentation, J. Non-Cryst. Solids, 2001, vol. 279, pp. 219–223.
Vil’k, Yu.N., Berdnikov, V.F., and Solomkin, F.Yu., Physicomechanical Properties of Refractory Single Crystals in Microvolumes, Zh. Vses. Khim. O-va. im. D. I. Mendeleeva, 1985, no. 6, pp. 528–535.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © O.B. Shcherbina, M.N. Palatnikov, V.V. Efremov, 2012, published in Neorganicheskie Materialy, 2012, Vol. 48, No. 4, pp. 506–512.
Rights and permissions
About this article
Cite this article
Shcherbina, O.B., Palatnikov, M.N. & Efremov, V.V. Mechanical properties of Nb2O5 and Ta2O5 prepared by different procedures. Inorg Mater 48, 433–438 (2012). https://doi.org/10.1134/S0020168512040139
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0020168512040139