@article{Wat:2019:10.1002/smll.201900573,
author = {Wat, A and Ferraro, C and Deng, X and Sweet, A and Tomsia, AP and Saiz, E and Ritchie, RO},
doi = {10.1002/smll.201900573},
journal = {Small},
title = {Bioinspired nacre-like alumina with a metallic nickel compliant phase fabricated by spark-plasma sintering},
url = {http://dx.doi.org/10.1002/smll.201900573},
volume = {15},
year = {2019}
}

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TY  - JOUR
AB  - Many natural materials present an ideal "recipe" for the development of future damage-tolerant lightweight structural materials. One notable example is the brick-and-mortar structure of nacre, found in mollusk shells, which produces high-toughness, bioinspired ceramics using polymeric mortars as a compliant phase. Theoretical modeling has predicted that use of metallic mortars could lead to even higher damage-tolerance in these materials, although it is difficult to melt-infiltrate metals into ceramic scaffolds as they cannot readily wet ceramics. To avoid this problem, an alternative ("bottom-up") approach to synthesize "nacre-like" ceramics containing a small fraction of nickel mortar is developed. These materials are fabricated using nickel-coated alumina platelets that are aligned using slip-casting and rapidly sintered using spark-plasma sintering. Dewetting of the nickel mortar during sintering is prevented by using NiO-coated as well as Ni-coated platelets. As a result, a "nacre-like" alumina ceramic displaying a resistance-curve toughness up to ≈16 MPa m½ with a flexural strength of ≈300 MPa is produced.
AU  - Wat,A
AU  - Ferraro,C
AU  - Deng,X
AU  - Sweet,A
AU  - Tomsia,AP
AU  - Saiz,E
AU  - Ritchie,RO
DO  - 10.1002/smll.201900573
PY  - 2019///
SN  - 1613-6810
TI  - Bioinspired nacre-like alumina with a metallic nickel compliant phase fabricated by spark-plasma sintering
T2  - Small
UR  - http://dx.doi.org/10.1002/smll.201900573
UR  - https://www.ncbi.nlm.nih.gov/pubmed/31131997
UR  - http://hdl.handle.net/10044/1/70522
VL  - 15
ER  - 

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