Results 171 to 180 of about 96,010 (323)

Anomalous Glassy Thermal Conductivity in a Perovskite Bismuthate Induced by Structural Dynamic Instability

open access: yesAdvanced Science, EarlyView.
Unraveling the underlying mechanisms at the origin of ultra‐low thermal conductivity in pristine crystals is of central relevance to designing new functional materials. Single crystals of the candidate functional material BaBiO3 show an anomalous glassy thermal conductivity, which reveals the role of strong anharmonicity and additional scattering ...
Alexandre Henriques   +6 more
wiley   +1 more source

Monotonic Properties of Completed Aggregates in Recursive Queries

open access: green, 2019
Carlo Zaniolo   +5 more
openalex   +2 more sources

Fatigue Limit Doubling in High‐Strength Martensitic Steel through Crack Embryo Engineering–Cyclic‐Training‐Driven Self‐Optimization

open access: yesAdvanced Science, EarlyView.
This study demonstrates a breakthrough in overcoming the conventional fatigue limit ceiling in high‐strength as‐quenched martensitic steel; maximum stress corresponding to the fatigue limit significantly increased from 675 to 1300 MPa with minimal sacrifice in tensile strength (1.5–1.6 GPa).
Kazuho Okada   +3 more
wiley   +1 more source

Microstructural Origin of Nonmonotonic Piezoresistivity in Polymer Nanocomposites

open access: yesAdvanced Science, EarlyView.
When polymer nanocomposites are subjected to tensile loading, the electrical resistance‐strain relationship may be nonmonotonic, hampering the use of these materials in real‐world applications. This challenge is addressed through the collaborative use of physical experimentation and computer simulations, establishing the inter‐nanotube junction ...
Ting Yui Wong   +3 more
wiley   +1 more source

Pressure‐Induced Metallization and Isostructural Transitions in 3R‐MoS2

open access: yesAdvanced Science, EarlyView.
Pressure‐induced isostructural transitions without symmetry breaking are reported in 3R‐MoS2. Concurrently, a semiconductor‐to‐metal transition is observed, owing to strong interlayer interaction and charge redistribution across the van der Waals gap under pressure.
Azkar Saeed Ahmad   +13 more
wiley   +1 more source

Determination of the Kinetic Rates and Intrinsic Nonradiative Losses in Organic Thermally Activated Delayed Fluorescence Emitters

open access: yesAdvanced Science, EarlyView.
It is demonstrated that the kinetic rates and intrinsic nonradiative losses of purely organic emitters with thermally activated delayed fluorescence cannot be precisely determined by photoluminescent measurements alone. With device modeling, it is then possible to quantify the absolute nonradiative losses from singlets and triplets, and therefore the ...
Xin Zhou   +5 more
wiley   +1 more source

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