Paper Title:
Fast Densification of B4C Ceramics with Al2O3 as a Sintering Aid by Spark Plasma Sintering
  Abstract

The densification behavior and mechanical properties of B4C by SPS at 1900°C for 2 min with additions of Al2O3 up to 10 wt.% were investigated. When the additional of 10 wt.%, the relative density was 99% and the hardness went to 33GPa. Sinterability was greatly improved by the addition of a small amount of Al2O3, and the SPS technology with high hearing rate is particularly attractive for prepare of poorly sinterable materials. The improvement was attributed to the enhanced mobility of elements through the Al2O3 near the melting temperature. As a result of this improvement in the density, mechanical properties, such as hardness, fracture toughness, increased remarkably.

  Info
Periodical
Materials Science Forum (Volumes 620-622)
Edited by
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
Pages
395-398
DOI
10.4028/www.scientific.net/MSF.620-622.395
Citation
F. Zhang, Z. Y. Fu, J. Y. Zhang, H. Wang, W. M. Wang, Y. C. Wang, J. Shi, "Fast Densification of B4C Ceramics with Al2O3 as a Sintering Aid by Spark Plasma Sintering", Materials Science Forum, Vols. 620-622, pp. 395-398, 2009
Online since
April 2009
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: Fernando A. Costa Oliveira, J.A. Franco, Jorge Cruz Fernandes
84
Authors: Seong Min Choi, Uraiwan Leela-adisorn, Sawao Honda, Shinobu Hashimoto, Hideo Awaji
Abstract:Intra-type structure of ceramic matrix composites (CMCs) can improve the mechanical properties of ceramic materials. In this work, we used...
115
Authors: Iis Sopyan, Natasha Ahmad Nawawi, Qasim Hussain Shah
Abstract:Dense pure biphasic calcium phosphate (BCP) and Mn-doped BCP ceramics were fabricated via uniaxial pressing using the sol-gel derived...
393
Authors: Abdullah Khalil, Abbas Saeed Hakeem, Nouari Saheb
Chapter 2: Material Science and Technology
Abstract:In the present study, Al2124 and Al6061 alloys were consolidated through spark plasma sintering at 400, 450 and 500 °C using three different...
1517
Authors: Qi Long Guo, Jun Guo Li, Qiang Shen, Lian Meng Zhang
Chapter 2: Engineering Ceramics and Ceramic Composites
Abstract:The sinterability of ZrB2-20vol.% SiC ceramics by high-energy ball milling as well as introduction of Zr and Al as sintering...
723