TY - JOUR
T1 - Impedance spectroscopy study of sintering in Bi-doped ZnO
AU - Kirkpatrick, Kelly S.
AU - Mason, Thomas O
AU - Balachandran, Uthamalingam
AU - Poeppel, Roger B.
PY - 1994/6
Y1 - 1994/6
N2 - Solid- and liquid-state sintering kinetics in the (1 - x)ZnO-xBi2O3 system with 0 ≤ x ≤ 0.05 over the range 600 ≤ T (°C) ≤ 1100 were investigated by impedance spectroscopy. Compositions with x <0.002 retarded sintering, whereas compositions with x ≥ 0.004 accelerated sintering above the eutectic temperature of 740°C. The results could be interpreted in terms of limited solid solubility of Bi2O3 in ZnO (x ≅ 0.004 ± 0.002), solid-state sintering in the subsolidus, and liquid-state sintering above the solidus. A phase diagram for the ZnO-rich end of the system is proposed, based on these results.
AB - Solid- and liquid-state sintering kinetics in the (1 - x)ZnO-xBi2O3 system with 0 ≤ x ≤ 0.05 over the range 600 ≤ T (°C) ≤ 1100 were investigated by impedance spectroscopy. Compositions with x <0.002 retarded sintering, whereas compositions with x ≥ 0.004 accelerated sintering above the eutectic temperature of 740°C. The results could be interpreted in terms of limited solid solubility of Bi2O3 in ZnO (x ≅ 0.004 ± 0.002), solid-state sintering in the subsolidus, and liquid-state sintering above the solidus. A phase diagram for the ZnO-rich end of the system is proposed, based on these results.
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M3 - Article
AN - SCOPUS:0028459576
VL - 77
SP - 1493
EP - 1498
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 6
ER -