19 research outputs found
High‐Temperature Oxidation of Tungsten‐ and Chromium‐Alloyed Molybdenum Aluminosilicides
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Field-assisted sintering of Ni nanopowders
No full textNi nanopowders were sintered by a field-assisted sintering technique (FAST). The influence of heating rate from 90 to 1100 ◦C/min on densification and final grain structure of sintered Ni was studied. A moderate heating rate was found to be beneficial for the densification of Ni nanopowders, whereas a high heating rate was conducive to a lower final density. Very high heating rates resulted in non-uniform densification of the samples and formation of cracks during sintering. Electric field activation and possible densification mechanisms are discussed
Recommended from our members
Field-assisted sintering of Ni nanopowders
No full textNi nanopowders were sintered by a field-assisted sintering technique (FAST). The influence of heating rate from 90 to 1100 ◦C/min on densification and final grain structure of sintered Ni was studied. A moderate heating rate was found to be beneficial for the densification of Ni nanopowders, whereas a high heating rate was conducive to a lower final density. Very high heating rates resulted in non-uniform densification of the samples and formation of cracks during sintering. Electric field activation and possible densification mechanisms are discussed
Field-assisted sintering of Ni nanopowders
No full textNi nanopowders were sintered by a field-assisted sintering technique (FAST). The influence of heating rate from 90 to 1100 â—¦C/min on densification and final grain structure of sintered Ni was studied. A moderate heating rate was found to be beneficial for the densification of Ni nanopowders, whereas a high heating rate was conducive to a lower final density. Very high heating rates resulted in non-uniform densification of the samples and formation of cracks during sintering. Electric field activation and possible densification mechanisms are discussed.UCD-ITS-RP-07-28, Civil Engineering
Quasicrystal phase formation in Al-Cu-Fe nanopowders during field-activated sintering (FAST)
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Field-assisted sintering of Ni nanopowders
No full textNi nanopowders were sintered by a field-assisted sintering technique (FAST). The influence of heating rate from 90 to 1100 â—¦C/min on densification and final grain structure of sintered Ni was studied. A moderate heating rate was found to be beneficial for the densification of Ni nanopowders, whereas a high heating rate was conducive to a lower final density. Very high heating rates resulted in non-uniform densification of the samples and formation of cracks during sintering. Electric field activation and possible densification mechanisms are discussed.UCD-ITS-RP-07-28, Civil Engineering
Impurity Effects on the Environmental Stability of Powder Processed Intermetallic Alumino-Silicide Compounds
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