Abstract
A novel porous ceramics with a specific mechanical strength higher than monolithic dense ceramics was reported. Three types of composite granules with different-sized cores of a foam agent coated with a matrix powder were used in the study. These superplastic-foamed porous ceramics pores with many closed pores were prepared by compaction followed by sintering. It was observed during the study that the bending strength of the fabricated ceramics with the smallest pores was nearly equal to half of fully dense cores with a porosity of 27%. It was also found that the mechanical strength of superplastic-foamed porous ceramics increased with the decrease of pore size. The study concluded that the finished dense/porous/dense layered ceramics showed a specific mechanical strength higher that monolithic dense ceramics.
| Original language | English |
|---|---|
| Pages (from-to) | 96-100 |
| Number of pages | 5 |
| Journal | Advanced Engineering Materials |
| Volume | 11 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Jan 2009 |
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ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
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Improvement in the specific strength by arranging closed pores in fully densified zirconia ceramics. / Kishimoto, Akira; Hanao, Masaaki; Hayashi, Hidetaka.
In: Advanced Engineering Materials, Vol. 11, No. 1-2, 01.2009, p. 96-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improvement in the specific strength by arranging closed pores in fully densified zirconia ceramics
AU - Kishimoto, Akira
AU - Hanao, Masaaki
AU - Hayashi, Hidetaka
PY - 2009/1
Y1 - 2009/1
N2 - A novel porous ceramics with a specific mechanical strength higher than monolithic dense ceramics was reported. Three types of composite granules with different-sized cores of a foam agent coated with a matrix powder were used in the study. These superplastic-foamed porous ceramics pores with many closed pores were prepared by compaction followed by sintering. It was observed during the study that the bending strength of the fabricated ceramics with the smallest pores was nearly equal to half of fully dense cores with a porosity of 27%. It was also found that the mechanical strength of superplastic-foamed porous ceramics increased with the decrease of pore size. The study concluded that the finished dense/porous/dense layered ceramics showed a specific mechanical strength higher that monolithic dense ceramics.
AB - A novel porous ceramics with a specific mechanical strength higher than monolithic dense ceramics was reported. Three types of composite granules with different-sized cores of a foam agent coated with a matrix powder were used in the study. These superplastic-foamed porous ceramics pores with many closed pores were prepared by compaction followed by sintering. It was observed during the study that the bending strength of the fabricated ceramics with the smallest pores was nearly equal to half of fully dense cores with a porosity of 27%. It was also found that the mechanical strength of superplastic-foamed porous ceramics increased with the decrease of pore size. The study concluded that the finished dense/porous/dense layered ceramics showed a specific mechanical strength higher that monolithic dense ceramics.
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UR - http://www.scopus.com/inward/citedby.url?scp=60949110400&partnerID=8YFLogxK
U2 - 10.1002/adem.200800259
DO - 10.1002/adem.200800259
M3 - Article
AN - SCOPUS:60949110400
VL - 11
SP - 96
EP - 100
JO - Advanced Engineering Materials
JF - Advanced Engineering Materials
SN - 1438-1656
IS - 1-2
ER -