TY - GEN
T1 - Superplastically foaming method for reliable porous ceramics
AU - Kishimoto, Akira
AU - Nakagawa, Takahiro
AU - Teranishi, Takashi
AU - Hayashi, Hidetaka
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Porous ceramics incorporate pores to improve several properties including thermal insulation, maintaining inherent ceramic properties such as corrosion resistance and large mechanical strength. Conventional porous ceramics are usually fabricated through an insufficient sintering, leading to degraded strength and durability. Contrary to this, we have innovated superplastically foaming method to make ceramic foam only in the solid state. In this method, the previously inserted foam agent evaporates after the full densification of matrix at around the sintering temperature. Closed pores expand utilizing the superplastic deformation driven by the evolved gas pressure. Based on this concept we fabricated 8mol% yttria stabilized zirconia based porous ceramics and examined the properties concerning the high temperature structural material with thermal insulation.
AB - Porous ceramics incorporate pores to improve several properties including thermal insulation, maintaining inherent ceramic properties such as corrosion resistance and large mechanical strength. Conventional porous ceramics are usually fabricated through an insufficient sintering, leading to degraded strength and durability. Contrary to this, we have innovated superplastically foaming method to make ceramic foam only in the solid state. In this method, the previously inserted foam agent evaporates after the full densification of matrix at around the sintering temperature. Closed pores expand utilizing the superplastic deformation driven by the evolved gas pressure. Based on this concept we fabricated 8mol% yttria stabilized zirconia based porous ceramics and examined the properties concerning the high temperature structural material with thermal insulation.
KW - Closed pore
KW - Foam
KW - Superplasticity
KW - Zirconia ceramics
UR - http://www.scopus.com/inward/record.url?scp=84873026775&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873026775&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.735.109
DO - 10.4028/www.scientific.net/MSF.735.109
M3 - Conference contribution
AN - SCOPUS:84873026775
SN - 9783037855539
T3 - Materials Science Forum
SP - 109
EP - 112
BT - Superplasticity in Advanced Materials - ICSAM 2012
PB - Trans Tech Publications Ltd
T2 - 11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012
Y2 - 3 July 2012 through 5 July 2012
ER -