Paper Title:
Nano-Indentation of SiC and Si3N4/SiC Ceramic Materials
  Abstract

The present paper deals with the nano-indentation of SiC-micro and Si3N4/SiCmicro/ nano ceramic materials. The investigated SiC-micro and Si3N4/SiC-micro/nano ceramics were prepared by liquid phase sintering. Liquid phase was formed from different sintering additives (Y2O3, Yb2O3, Sm2O3). In the case of Si3N4/SiC-micro/nano ceramics the SiC nano-grains were created from SiNC amorphous powder. SiNC precursor decomposed to SiC and Si3N4 particles during sintering. The comparison of nano- and macro-hardness of investigated ceramic materials showed that nano-hardness is significantly higher. The indentation modulus correlated with the measured nano-hardness. Remarkable influence of grain boundaries and SiC nano-inclusions on hardness was observed.

  Info
Periodical
Edited by
J. Dusza, R. Danzer and R. Morrell
Pages
272-275
DOI
10.4028/www.scientific.net/KEM.290.272
Citation
M. Balog, P. Šajgalík, Z. Lenčéš, M. Hnatko, J. Kečkéš, J. L. Huang, J. Janega, R. Horváthová, "Nano-Indentation of SiC and Si3N4/SiC Ceramic Materials", Key Engineering Materials, Vol. 290, pp. 272-275, 2005
Online since
July 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: F.T.C. Lima, Guerold Sergueevitch Bobrovinitchii, Marcello Filgueira
Abstract:Diamond composites consist in the diamond powder mixed with a binder phase, which sintering is carried out by means of the High Pressure-High...
225
Authors: M. Marina, K. Alir, W. Rahman, Z. Nooraizedfiza, Mohd Asri Selamat, M.Z.M. Zamzuri
Abstract:This study is focused on fabricating and characterizing iron (Fe) composites prepared by powder metallurgy route reinforced with varying...
738
Authors: Alina Mihaela Cantaragiu, Catalin Fetecau
Chapter 2: Composites and Polymers
Abstract:The Instrumented Indentation Technique (IIT) is used to measure the local mechanical properties of different materials. The mechanical...
115