Microstructure tailoring of high thermal conductive silicon nitride through addition of nuclei with spark plasma sintering and post-sintering heat treatment

High thermal conductive β-silicon nitride (β-Si3N4) ceramics were fabricated from fine α-Si3N4 powder as the raw material and coarse β-Si3N4 particles as the nuclei through spark plasma sintering (SPS) at 1650 °C for 5 min and post-sintering heat treatment at 1900 °C for 4 h. The microstructures of...

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Veröffentlicht in:	Journal of alloys and compounds 2019-05, Vol.785, p.89-95
Hauptverfasser:	Yang, Chunping, Ding, Junjie, Ma, Jie, Zhang, Biao, Ye, Feng, Wu, Yiyong, Liu, Qiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramic powders Ceramics Coarsening Grains Heat conductivity Heat transfer Heat treatment Nucleation Nuclei Plasma sintering Silicon nitride Spark plasma sintering Thermal conductivity
Online-Zugang:	Volltext
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