Pressureless sintering of a magnesia doped gelcast alumina ceramic

Bodur C. T., SAHIN F.

JOURNAL OF ADVANCED MATERIALS, pp.70-72, 2006 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2006
  • Journal Name: JOURNAL OF ADVANCED MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.70-72
  • Istanbul Technical University Affiliated: Yes

Abstract

Small amount (a few hundreds of ppm) of magnesia doped gelcast formed alumina was pressureless sintered at 1600 degrees C for 1 hour. The sintered alumina was examined by scanning electron microscopy (SEM) for microstructural investigation. Linear shrinkage, density and Vickers hardness of the sintered alumina were measured as 16.57%, 3.97 g/cm(3) and 21.6 GPa, respectively. It was observed from the SEM investigation and density measurements that a full densification of the alumina was achieved with a fine grain structure.