TY - GEN
T1 - Suppression of sintering defects in metal/ceramic graded layers by using inhomogeneous powder mixtures
AU - Shinagawa, K.
AU - Sakane, Y.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Improvement of the drop in shrinkage rate of metal/ceramic powder mixtures may be important to avoid defects, such as distortion or cracking, in sintering of functionally graded materials. The authors previously proposed a method of increasing the sinterability of metal/ceramic powder mixtures by inhomogenization of microstructure, which was achieved by granulating ceramic and metal powders separately before compaction. In this study, Ni/Al 2O3 graded powder compacts are prepared with the inhomogeneous mixtures on some conditions, and the sintering behavior of the compacts is examined analytically and experimentally. Consequently, the effects of inhomogenization on suppressing the sintering defects in graded layers are confirmed.
AB - Improvement of the drop in shrinkage rate of metal/ceramic powder mixtures may be important to avoid defects, such as distortion or cracking, in sintering of functionally graded materials. The authors previously proposed a method of increasing the sinterability of metal/ceramic powder mixtures by inhomogenization of microstructure, which was achieved by granulating ceramic and metal powders separately before compaction. In this study, Ni/Al 2O3 graded powder compacts are prepared with the inhomogeneous mixtures on some conditions, and the sintering behavior of the compacts is examined analytically and experimentally. Consequently, the effects of inhomogenization on suppressing the sintering defects in graded layers are confirmed.
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U2 - 10.1002/9781118486955.ch8
DO - 10.1002/9781118486955.ch8
M3 - Conference contribution
AN - SCOPUS:84867903683
SN - 9781118273753
T3 - Ceramic Transactions
SP - 79
EP - 89
BT - Advances in Sintering Science and Technology II - A Collection of Papers Presented at the International Conference on Sintering 2011
PB - American Ceramic Society
T2 - International Conference on Sintering 2011
Y2 - 26 August 2011 through 1 September 2011
ER -