TY - JOUR
T1 - Mechanical properties of sintered Si3N4 from powder produced by fluidized-bed direct silicon nitridation
AU - Suzuki, Hiroyuki Y.
AU - Tashima, Shunzo
AU - Kimura, Shoichi
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2005/12
Y1 - 2005/12
N2 - Si3N4 powder, produced by the fluidized-bed direct nitridation of silicon, was blended with water, compacted by pressure slip casting, and sintered under a pressurized nitrogen atmosphere. Compacts made from the powder showed roughly the same sinterability as those made from commercially available imide-process powder, yielding a hardness of H v 1570, a fracture toughness of 7.2 MPa√m, and a three-point bending strength of 1062 MPa, highest values attainable with Si 3N4. The powder produced by the fluidized-bed direct nitridation may replace the Si3N4 powder from the other process, when water is used for preparing slips. A processing rout is proposed, which may realize a substantial reduction of total cost for producing sintered Si3N4 parts.
AB - Si3N4 powder, produced by the fluidized-bed direct nitridation of silicon, was blended with water, compacted by pressure slip casting, and sintered under a pressurized nitrogen atmosphere. Compacts made from the powder showed roughly the same sinterability as those made from commercially available imide-process powder, yielding a hardness of H v 1570, a fracture toughness of 7.2 MPa√m, and a three-point bending strength of 1062 MPa, highest values attainable with Si 3N4. The powder produced by the fluidized-bed direct nitridation may replace the Si3N4 powder from the other process, when water is used for preparing slips. A processing rout is proposed, which may realize a substantial reduction of total cost for producing sintered Si3N4 parts.
KW - Fluidized-bed direct nitridation
KW - Pressure casting
KW - Silicon nitride
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U2 - 10.2109/jcersj.113.774
DO - 10.2109/jcersj.113.774
M3 - Article
AN - SCOPUS:31144468965
VL - 113
SP - 774
EP - 777
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1324
ER -