Abstract
The resintering behavior of swaged Al2O3 up to 98% reduction in area was investigated to discuss the intense cold-working effect in the green state. The relative density of resintered Al2O3 could be improved to be close to 99% theoretical density at 1573 K for 1 h, and negligibly small grain growth was observed when the relative density became less than 97.5%. Grain boundary diffusion was considered to be a dominant mechanism for resintering the swaged Al2O3 by calculating the activation energy. The negligibly small grain growth was attributed to the homogeneous microstructure in the green state attained by the controlled fracture forming.
| Original language | English |
|---|---|
| Pages (from-to) | 125-129 |
| Number of pages | 5 |
| Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
| Volume | 46 |
| Issue number | 2 |
| Publication status | Published - 1999 Feb |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Metals and Alloys
Cite this
Resintering behavior of alumina compact on the route of controlled fracture forming. / Du, Wen Bo; Tatsuzawa, Kiyohiko; Aizawa, Tatsuhiko; Kihara, Junji.
In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 46, No. 2, 02.1999, p. 125-129.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Resintering behavior of alumina compact on the route of controlled fracture forming
AU - Du, Wen Bo
AU - Tatsuzawa, Kiyohiko
AU - Aizawa, Tatsuhiko
AU - Kihara, Junji
PY - 1999/2
Y1 - 1999/2
N2 - The resintering behavior of swaged Al2O3 up to 98% reduction in area was investigated to discuss the intense cold-working effect in the green state. The relative density of resintered Al2O3 could be improved to be close to 99% theoretical density at 1573 K for 1 h, and negligibly small grain growth was observed when the relative density became less than 97.5%. Grain boundary diffusion was considered to be a dominant mechanism for resintering the swaged Al2O3 by calculating the activation energy. The negligibly small grain growth was attributed to the homogeneous microstructure in the green state attained by the controlled fracture forming.
AB - The resintering behavior of swaged Al2O3 up to 98% reduction in area was investigated to discuss the intense cold-working effect in the green state. The relative density of resintered Al2O3 could be improved to be close to 99% theoretical density at 1573 K for 1 h, and negligibly small grain growth was observed when the relative density became less than 97.5%. Grain boundary diffusion was considered to be a dominant mechanism for resintering the swaged Al2O3 by calculating the activation energy. The negligibly small grain growth was attributed to the homogeneous microstructure in the green state attained by the controlled fracture forming.
UR - http://www.scopus.com/inward/record.url?scp=0032649213&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032649213&partnerID=8YFLogxK
M3 - Article
VL - 46
SP - 125
EP - 129
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 2
ER -