W-Y2O3 composite nanopowders prepared by freeze-drying method and its sintering characteristics

In order to prepare high performance oxide-dispersion-strengthened tungsten based alloys, the W-Y2O3 composite powder precursors were synthesized by novel freeze-drying method. The average W grain size of prepared W-Y2O3 composite powder is 14.2 nm, and corresponding grain size distribution is extre...

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Veröffentlicht in:	Journal of alloys and compounds 2019-10, Vol.806, p.127-135
Hauptverfasser:	Hu, Weiqiang, Yu, Liming, Ma, Zongqing, Liu, Yongchang
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy powders Bonding strength Diffusion layers Dispersion hardening alloys Freeze drying Grain boundaries Grain size Grain size distribution Low temperature sintering Particle size distribution Sintering Sintering (powder metallurgy) Tungsten base alloys Ultrafine grains Ultrafines W-Y2O3 Yttrium oxide
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