Paper Title:
Fine-Grained Si3N4-Containing Ceramics from Nanopowders
  Abstract

Different compositions of SiAlON materials have been prepared from separate nanopowders and their composites: Si3N4 – AlN, Si3N4, Al2O3 and Y2O3, produced by the method of plasma-chemical synthesis. Compositions have been pressure-less sintered in nitrogen medium up to 1750°C with a heating rate of 10°C/min and holding time for 2 hours or by spark plasma sintering (SPS) in vacuum at 1700°C with a heating rate of 100°C/min and holding time of 5 min. The densification behaviour of the materials at these sintering conditions depends insignificantly on the powder composition. It is possible to obtain dense ceramic materials with relatively fine-grained structure (200-300 nm) from nanosized powders at relatively low temperatures (1400 - 1600°C) with good mechanical properties.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
130-135
DOI
10.4028/www.scientific.net/MSF.636-637.130
Citation
I. Zalite, N. Zilinska, J. Krastins, I. Šteins, "Fine-Grained Si3N4-Containing Ceramics from Nanopowders", Materials Science Forum, Vols. 636-637, pp. 130-135, 2010
Online since
January 2010
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: Guang Hui Li, Zhang Lian Hong, Li Xia Peng, Min Quan Wang
Abstract:XRD, SEM, bulk density and dielectric properties measurements were used to investigate the effect of TiO2 nanopowder substitution for...
228
Authors: Lu Ting Yan, Wen Jie Si, Lian Yun Liu, Yan Peng Zheng, Chun Ai Dai
Abstract:SiC nanopowders were surface modified by low temperature plasma polymerization. 5vol% SiC-Al2O3 nanocomposite was prepared by adding the...
2251
Authors: Piotr Klimczyk
Abstract:Three types: micro-, submicro- and nano-structured Si3N4-SiC composites have been obtained by High Pressure-High Temperature (HPHT)...
396
Authors: Li Xin Li
Chapter 4: Ceramic
Abstract:Ni-Cu bulk alloys were successfully prepared with spark plasma sintering (SPS) technique from nanopowders obtained by the arc plasma...
949