Strong, tough and stiff bioinspired ceramics from brittle constituents.

  title={Strong, tough and stiff bioinspired ceramics from brittle constituents.},
  author={Florian Bouville and Eric Maire and Sylvain Meille and Bertrand Van de Moort{\`e}le and Adam J. Stevenson and Sylvain Deville},
  journal={Nature materials},
  volume={13 5},
High strength and high toughness are usually mutually exclusive in engineering materials. In ceramics, improving toughness usually relies on the introduction of a metallic or polymeric ductile phase, but this decreases the material's strength and stiffness as well as its high-temperature stability. Although natural materials that are both strong and tough rely on a combination of mechanisms operating at different length scales, the relevant structures have been extremely difficult to replicate… 

A simple approach to bulk bioinspired tough ceramics

The development of damage-resistant structural materials that can withstand harsh environments is a major issue in materials science and engineering. Bioinspired brick-and-mortar designs have

Tough Alumina/Polymer Layered Composites with High Ceramic Content

Ceramic composites found in nature, such as bone, nacre, and sponge spicule, often provide an effective resolution to a well-known conflict between materials' strength and toughness. This arises, on

Rheology and processing of UV‐curable textured alumina inks for additive manufacturing

Engineered ceramics possess several remarkable qualities, including high modulus, strength, hardness, and chemical inertness.1 However, the strong covalent and ionic bonding that gives them these

Dual-Phase Super-Strong and Elastic Ceramic.

It is demonstrated that dual-phase zirconia nanowires with nanocrystals embedded in an amorphous matrix as a strengthening phase can overcome both the inverse Hall-Petch effect and the shear band softening effect and become the strongest and toughest ZrO2 ever achieved.

Strength and toughness trade-off optimization of nacre-like ceramic composites

Nacre-like alumina composites based on heteroaggregation

High strength and high toughness are usually mutually exclusive in materials. Among all material classes, ceramics exhibit a high stiffness and strength, but they present a limited plastic



The conflicts between strength and toughness.

This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.

Microstructural Design Of Toughened Ceramics

  • F.
  • Materials Science
  • 1990
The fracture toughness of ceramics can be improved by the incorporation of a variety of discontinuous, elastic reinforcing phases that generate a crack-bridging zone. Recent models of toughening by

Tough and stiff composites with simple building blocks

From bone to dentin to nacre, biomaterials are structurally advanced composites with superior toughness and significant stiffness, based on simple building blocks. Here, using a series of molecular

From brittle to ductile fracture of bone

It is found that the fracture energy changes by two orders of magnitude depending on the collagen orientation, and the angle between collagen and crack propagation direction is decisive in switching between different toughening mechanisms.

A novel structure for carbon nanotube reinforced alumina composites with improved mechanical properties

It is shown that a novel processing approach based on the precursor method can diminish the phase segregation of multi-walled carbon nanotubes (MWCNTs), and render MWCNT/alumina composites highly homogeneous.

Tough, Bio-Inspired Hybrid Materials

This work emulates nature's toughening mechanisms by combining two ordinary compounds, aluminum oxide and polymethyl methacrylate, into ice-templated structures whose toughness can be more than 300 times that of their constituents.