Title of article
Enhancement of sintering ability of magnesium aluminate spinel (MgAl2O4) ceramic nanopowders by shock compression
Author/Authors
Chen، نويسنده , , Q.Y. and Meng، نويسنده , , C.M. and Lu، نويسنده , , T.C. and Chang، نويسنده , , X.H. and Ji، نويسنده , , G.F. and Zhang، نويسنده , , L. and Zhao، نويسنده , , F.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
5
From page
91
To page
95
Abstract
The properties of MgAl2O4 nanopowders under shock pressure up to 5.3 GPa were investigated. It was found that the lattice constants and residual stresses of shock treated MgAl2O4 nanopowders increase non-linearly with shock velocity. According to the transmission electron microscope (TEM) images, the grain size of nanopowder was found decreased significantly after shock compression. The smaller grain size and high residual stress could lead to high sintering activity, which could be extraordinarily useful to enhance the density of ceramic and make highly transparent ceramic.
Keywords
Shock compression , MgAl2O4 , Ceramic nanopowder , Residual stresses , X-Ray Diffraction (XRD)
Journal title
Powder Technology
Serial Year
2010
Journal title
Powder Technology
Record number
1694419
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