Paper Title:
Influence of Two-Step Sintering on Transparency of High Purity Alumina
  Abstract

Density, purity, grain, and grain size distribution are the key factors that influence the transparency of an optical ceramics. To achieve high transmittance, efforts should be made to eliminate or minimize scattering or absorption of light. The aim of this paper is to verify the effect of two-step sintering technique for translucent alumina. The density and transmittance of the samples were enhanced by pre-heat treating at 800°C for 50 hours before the high temperature sintering. Abnormal grain growth was successfully suppressed by a two-step sintering technique and a small amount of MgO as additives. It is a very effective technique for designing homogeneous microstructure and high transparency in high purity alumina.

  Info
Periodical
Materials Science Forum (Volumes 510-511)
Edited by
Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
Pages
822-825
DOI
10.4028/www.scientific.net/MSF.510-511.822
Citation
R. J. Sung, D. S. Kim, S. A. Ji, J. S. Park, S. W. Kim, "Influence of Two-Step Sintering on Transparency of High Purity Alumina", Materials Science Forum, Vols. 510-511, pp. 822-825, 2006
Online since
March 2006
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: Akihiko Ikuta, Hideki Kyogoku, Hiroyuki Suzuki
Chapter 1: Materials Research and its Applications
Abstract:In this study, production processes for porous alumina, and the characteristics of the material, were investigated. Porous alumina was...
86
Authors: Dóra Lipusz, Ákos Isztli, László A. Gömze
Session I. - Materials and Technologies
Abstract:The authors have investigated the influence of sintering time at 1600 °C on microstructure, shrinkage, density, surface hardness and bending...
143
Authors: Qing Bo Tian, Jin Shan Dai, Li Na Xu, Xiu Hui Wang
Chapter 1: Materials and Technologies of Materials Processing in Mechanical Engineering
Abstract:The sintering of alumina ceramics with high-purity has gained much attention due to their wide range applications. The improved sinteirng...
76