TY - JOUR
T1 - Solid-solution directionally solidified eutectic oxide composites
T2 - Part I. Eutectic growth and characterization
AU - Brewer, L. N.
AU - Dravid, V. P.
AU - Dhalenne, G.
AU - Velázquez, M.
N1 - Funding Information:
This work was supported by National Science Foundation, Division of Materials Research, grant number 9528488 (L.N.B., V.P.D.) and Department of Defense, National Defense Science and Engineering Graduate Fellowship (L.N.B.).
PY - 2002/4
Y1 - 2002/4
N2 - In this work, the solid solution series directionally solidified eutectic, Co1-xNixO/ZrO2(CaO), 0 ≤ x ≤ 1, was examined as a possible model system for interfacial fracture studies. These materials were grown by the optical floating zone method in an image furnace under controlled atmospheres to prevent the formation of Co3O4. For all compositions, lamellar microstructures were produced. The interface plane orientation relationship (111) Co1-xNixO∥(100) ZrO2(CaO) was maintained throughout the solid solution series. The phase compositions were close to nominal values with some solubility of CoO in ZrO2(CaO). Preliminary indentation measurements demonstrate the onset of interfacial delamination for compositions of x < 0.2.
AB - In this work, the solid solution series directionally solidified eutectic, Co1-xNixO/ZrO2(CaO), 0 ≤ x ≤ 1, was examined as a possible model system for interfacial fracture studies. These materials were grown by the optical floating zone method in an image furnace under controlled atmospheres to prevent the formation of Co3O4. For all compositions, lamellar microstructures were produced. The interface plane orientation relationship (111) Co1-xNixO∥(100) ZrO2(CaO) was maintained throughout the solid solution series. The phase compositions were close to nominal values with some solubility of CoO in ZrO2(CaO). Preliminary indentation measurements demonstrate the onset of interfacial delamination for compositions of x < 0.2.
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U2 - 10.1557/JMR.2002.0111
DO - 10.1557/JMR.2002.0111
M3 - Article
AN - SCOPUS:0036541119
SN - 0884-2914
VL - 17
SP - 760
EP - 767
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 4
ER -