TY - JOUR
T1 - A strong and damage-tolerant oxide laminate
AU - Kuo, Dong Hau
AU - Kriven, Waltraud M.
PY - 1997/9
Y1 - 1997/9
N2 - A novel laminar oxide composite was developed. This oxide laminate, which was fabricated by hot pressing, consisted of three types of layers, which were stacked in a repeating sequence of YPO4, yttria-stabilized ZrO2, 30 vol% yttria-stabilized ZrO2-70 vol% Al2O3, and yttria-stabilized ZrO2. The behavior of the oxide laminate was evaluated by four-point flexural testing and the indentation technique. The flexural strength from one test was 358 MPa, and the load-displacement curve of this test displayed a graceful failure. Pronounced interfacial delamination contributed to a high work of fracture and damage tolerance. These properties have rarely been observed in oxide composites and are comparable to those of non-oxide composites, such as SiC/graphite, SiC/BN, and Si3N4/BN laminates.
AB - A novel laminar oxide composite was developed. This oxide laminate, which was fabricated by hot pressing, consisted of three types of layers, which were stacked in a repeating sequence of YPO4, yttria-stabilized ZrO2, 30 vol% yttria-stabilized ZrO2-70 vol% Al2O3, and yttria-stabilized ZrO2. The behavior of the oxide laminate was evaluated by four-point flexural testing and the indentation technique. The flexural strength from one test was 358 MPa, and the load-displacement curve of this test displayed a graceful failure. Pronounced interfacial delamination contributed to a high work of fracture and damage tolerance. These properties have rarely been observed in oxide composites and are comparable to those of non-oxide composites, such as SiC/graphite, SiC/BN, and Si3N4/BN laminates.
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U2 - 10.1111/j.1151-2916.1997.tb03137.x
DO - 10.1111/j.1151-2916.1997.tb03137.x
M3 - Article
AN - SCOPUS:0031234166
SN - 0002-7820
VL - 80
SP - 2421
EP - 2424
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 9
ER -