Bioinspired Hydroxyapatite/Poly(methyl methacrylate) Composite with a Nacre‐Mimetic Architecture by a Bidirectional Freezing Method. Issue 1 (10th November 2015)

• Record Type: Journal Article
• Authors: Bai, Hao; Walsh, Flynn; Gludovatz, Bernd; Delattre, Benjamin; Huang, Caili; Chen, Yuan; Tomsia, Antoni P.; Ritchie, Robert O.
• Is Part Of: Advanced materials. Volume 28:Issue 1(2016)
• Page Start: 50
• Page End: 56
• Publication Date: 2015-11-10
• Subjects: biomimetic composites -- freeze casting -- ice nucleation -- nacre; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201504313
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Using a bidirectional freezing technique, combined with uniaxial pressing and in situ polymerization, "nacre‐mimetic" hydroxyapatite/poly(methyl methacrylate) (PMMA) composites are developed by processing large‐scale aligned lamellar ceramic scaffolds. Structural and mechanical characterization shows "brick‐and‐mortar" structures, akin to nacre, with interesting combinations of strength, stiffness, and work of fracture, which provide a pathway to making strong and tough lightweight materials.