Get access
Advertisement

Highly Dense, Transparent α-Al2O3 Ceramics From Ultrafine Nanoparticles Via a Standard SPS Sintering

Authors


Author to whom correspondence should be addressed. e-mail: chane@chimie.ups-tlse.fr

Abstract

Using discrete, ultrafine alumina, highly dense transparent (71% real in-line transmission, RIT, λ = 640 nm) ceramics were achieved with grain size as small as 260 nm using standard SPS sintering. We show that use of La3+ as a dopant greatly reduces sensitivity to the sintering temperatures. Transparent alumina were achieved in a large range of sintering temperatures, 1140°C < T < 1200°C, thus providing better reliability and flexibility into the fabrication of large sintered transparent ceramic bodies.

Get access to the full text of this article

Ancillary