A simple way to make tough ceramics

Clegg, William; Kendall, Kevin; Alford, N.McN.; Button, T.W.; Birchall, J. D.

doi:10.1038/347455a0

Cited by 797 publications

(408 citation statements)

References 7 publications

Supporting

Mentioning

402

Contrasting

Unclassified

Order By: Relevance

“…Interfaces may become crucial in different situations, for instance, in the struggle to enhance toughness of brittle materials (such as ceramics, Clegg et al, 1990) or to induce peculiar electric transport properties. A strong research effort was therefore devoted to this topic.…”

Section: Introductionmentioning

confidence: 99%

Statics and dynamics of structural interfaces in elasticity

Bigoni

Movchan

2002

International Journal of Solids and Structures

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Statics and dynamics of structural interfaces in elasticity

Bigoni

Movchan

2002

International Journal of Solids and Structures

View full text Add to dashboard Cite

“…cannot provide the degree of microstructural control needed to manipulate and optimize the mechanical response of the material. Clegg et al (1990) first developed large-scale nacre-like composites using SiC ceramic tablets coated with graphite to provide weak 'glue' interfaces in order to overcome the brittleness of the ceramic. Although increases in toughness and work of fracture by, respectively, factors of 5 and 100 over monolithic SiC were reported, the toughening achieved by the crack deflection in these macroscopic layered composites was quite limited compared with that seen in the natural composites.…”

Section: Introductionmentioning

confidence: 99%

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Launey

Munch

Alsem

et al. 2009

J. R. Soc. Interface.

250

121

View full text Add to dashboard Cite

The prospect of extending natural biological design to develop new synthetic ceramicmetal composite materials is examined. Using ice-templating of ceramic suspensions and subsequent metal infiltration, we demonstrate that the concept of ordered hierarchical design can be applied to create fine-scale laminated ceramic -metal (bulk) composites that are inexpensive, lightweight and display exceptional damage-tolerance properties. Specifically, Al 2 O 3 /Al -Si laminates with ceramic contents up to approximately 40 vol% and with lamellae thicknesses down to 10 mm were processed and characterized. These structures achieve an excellent fracture toughness of 40 MPa p m at a tensile strength of approximately 300 MPa. Salient toughening mechanisms are described together with further toughening strategies.

show abstract

“…In laminates, the increase in toughness usually arises from the incorporation of weak interlayers [38] or a stressed interface [39]. Laminate EPD experiments in literature (Table 2.2) generally involve using two suspensions, each with a different ceramic powder.…”

Section: Laminate Depositsmentioning

confidence: 99%