R
Robert O. Ritchie
Researcher at University of California, Berkeley
Publications - 693
Citations - 68426
Robert O. Ritchie is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Fracture toughness & Fracture mechanics. The author has an hindex of 120, co-authored 659 publications receiving 54692 citations. Previous affiliations of Robert O. Ritchie include University of California & Center for Advanced Materials.
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A fracture-resistant high-entropy alloy for cryogenic applications
Bernd Gludovatz,Anton Hohenwarter,Dhiraj Catoor,Edwin H. Chang,Easo P. George,Easo P. George,Robert O. Ritchie,Robert O. Ritchie +7 more
TL;DR: This work examined a five-element high-entropy alloy, CrMnFeCoNi, which forms a single-phase face-centered cubic solid solution, and found it to have exceptional damage tolerance with tensile strengths above 1 GPa and fracture toughness values exceeding 200 MPa·m1/2.
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Bioinspired structural materials
TL;DR: The common design motifs of a range of natural structural materials are reviewed, and the difficulties associated with the design and fabrication of synthetic structures that mimic the structural and mechanical characteristics of their natural counterparts are discussed.
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The conflicts between strength and toughness
TL;DR: 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.
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High-entropy alloys
TL;DR: This Review discusses model high-entropy alloys with interesting properties, the physical mechanisms responsible for their behaviour and fruitful ways to probe and discover new materials in the vast compositional space that remains to be explored.
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Tough, bio-inspired hybrid materials.
Etienne Munch,Maximimilan E. Launey,Daan Hein Alsem,Daan Hein Alsem,Eduardo Saiz,Antoni P. Tomsia,Robert O. Ritchie,Robert O. Ritchie +7 more
TL;DR: In this article, the authors emulate Nature's toughening mechanisms through the combination of two ordinary compounds, aluminum oxide and polymethylmethacrylate, into ice-templated structures whose toughness can be over 300 times (in energy terms) that of their constituents.