Structure and mechanical behavior of dentin-inspired nanoporous copper

SCRIPTA MATERIALIA

卷:176

Article

Ibru, Timothy¹  Violante, Sarah¹  Vennat, Elsa²  Arson, Chloe³  Antoniou, Antonia¹ 

[1] Georgia Inst Technol, Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

[2] Univ Paris Saclay, Cent Supelec, CNRS, MSSMat, Gif Sur Yvette, France

[3] Georgia Inst Technol, Civil & Environm Engn, Atlanta, GA 30332 USA

关键词: Nanoporous;    Dentin;    Structure;    Property;    Modulus;    Hardness;   

DOI  :  10.1016/j.scriptamat.2019.09.034

来源: Elsevier

【 摘 要 】

Dentin possesses a hierarchical porous structure with varying cross-scale morphology and characteristic lengths ranging from nanometers to micrometers. Nanoporous (NP) Copper is fabricated with nano-sized and micron-sized features that mimic dentin's morphology. NP Copper Young's modulus, hardness, and plastic Poisson's ratio are shown to be in the range characteristic of dentin. This correspondence in properties may allow use of NP metals to advance tooth restoration techniques by using them as model systems to study infiltration of dentin with resins. Moreover, the multi-scale porosity may inspire design of 3D catalysts with efficient reactant mass transport through the catalyst volume. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free