A Novel Approach to Developing Biomimetic ("Nacre-Like") Metal-Compliant-Phase (Nickel-Alumina) Ceramics through Coextrusion

Author

Ryan P. Wilkerson
Bernd Gludovatz
Jeremy Lee Watts, Missouri University of Science and TechnologyFollow
Antoni P. Tomsia
Greg Hilmas, Missouri University of Science and TechnologyFollow
Robert O. Ritchie

Abstract

Bioinspired “brick-and-mortar” alumina ceramics containing a nickel compliant phase are synthesized by coextrusion of alumina and nickel oxide. Results show that these structures are coarser yet exhibit exceptional resistance-curve behavior with a fracture toughness three or more times higher than that of alumina, consistent with significant extrinsic toughening, from crack bridging and “brick” pull-out, in the image of natural nacre.

Recommended Citation

R. P. Wilkerson et al., "A Novel Approach to Developing Biomimetic ("Nacre-Like") Metal-Compliant-Phase (Nickel-Alumina) Ceramics through Coextrusion," Advanced Materials, vol. 28, no. 45, pp. 10061 - 10067, Wiley-VCH Verlag, Dec 2016.

The definitive version is available at https://doi.org/10.1002/adma.201602471

Department(s)

Materials Science and Engineering

Keywords and Phrases

bimimetics; coextrusion; fracture toughness; strength; structural ceramics

International Standard Serial Number (ISSN)

0935-9648

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Wiley-VCH Verlag, All rights reserved.

Publication Date

01 Dec 2016