ScholarLens Back to search
2010•Journal of the Ceramic Society of JapanOpen access

Fine-grained AlN ceramics from nanopowder by spark plasma sintering

Toshiyuki Nishimura, Keisuke SEKINE, Yoshinobu Yamamoto, Naoto Hirosaki, Takamasa Ishigaki

Open full text 7 citations

Abstract

Aluminum nitride nanopowder was fabricated from transition alumina nanopowder by gas reduction–nitridation method. It was sintered by spark plasma sintering with 1 wt % Ca3Al2O6 as a sintering additive in nitrogen. The nanopowder with Ca3Al2O6 was densified up to 3.16 Mg/m3 of density at 1450°C, restraining grain growth. The nanopowder without additive was densified at 1550°C. The sintering temperature for dense aluminum nitride ceramic could be reduced by 1 wt % Ca3Al2O6 as a sintering additive.

Open-access reader

About this research paper

What this paper is about

Aluminum nitride nanopowder was fabricated from transition alumina nanopowder by gas reduction–nitridation method. It was sintered by spark plasma sintering with 1 wt % Ca3Al2O6 as a sintering additive in nitrogen. The nanopowder with Ca3Al2O6 was densified up to 3.16 Mg/m3 of density at 1450°C, restraining grain growth. The nanopowder without additive was densified at 1550°C. The sintering temperature for dense aluminum nitride ceramic could be reduced by 1 wt % Ca3Al2O6 as a sintering additive.

Why it matters

OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Aluminum nitride nanopowder was fabricated from transition alumina nanopowder by gas reduction–nitridation method. It was sintered by spark plasma sintering with 1 wt % Ca3Al2O6 as a sintering additive in nitrogen. The nanopowder with Ca3Al2O6 was densified up to 3.16 Mg/m3 of density at 1450°C, restraining grain growth. The nanopowder without additive was densified at 1550°C. The sintering temperature for dense aluminum nitride ceramic could be reduced by 1 wt % Ca3Al2O6 as a sintering additive.

Key concepts: Spark plasma sintering, Materials science, Sintering, Ceramic, Nitride, Grain growth, Metallurgy, Nanoparticle

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Fine-grained AlN ceramics from nanopowder by spark plasma sintering — Research Paper | ScholarLens