Results 91 to 100 of about 40,994 (307)

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source

Rupture by damage accumulation in rocks [PDF]

, 2006
The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological terms, and to the
A Buchel, A Guarino, A Johansen, A Lin, AM Boullier, B Gutenberg, B Menendez, B Velde, C Marone, C Nicholson, C Scavia, CA Tang, CA Tang, CAJ Wibberley, CG Bufe, CG Sammis, CH Scholz, CH Scholz, D Amitrano, D Place, D Sornette, DA Lockner, DA Lockner, DA Lockner, David Amitrano, DE Moore, E Bouchaud, E Bouchaud, EM Schulson, F Kun, GCP King, H Nechad, HL Li, IG Main, J Biarez, J Kemeny, J Mori, J Rice, J Schmittbuhl, J Schmittbuhl, J Weiss, J Weiss, JC Jaeger, JVA Keller, JW Rudnicki, K Chen, K Mair, K Michibayashi, K Mogi, LS Costin, M Gerstenberger, P Cowie, P Grassberger, RL Kranz, RP Young, S Zapperi, S Zapperi, SC Jaume, SJD Cox, SR Brown, T Hirata, W Wang, YC Wang, Z Olami, Z Reches   +64 more
core   +4 more sources

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Indentation plasticity and fracture in silicon [PDF]

Measurements of the ductile-brittle transition temperature of heavily doped silicon were carried out using indentation techniques. Diamond pyramid hardness tests were performed on the (100) face of heavily doped N-type and P-type and intrinsic silicon ...
Pirouz, P., Rybicki, George C.
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Application of Surface-Cracking Process to Improve Impact Toughness of High-Strength BCC Steel at Low Temperatures

Crystals
At very low temperatures, typically ductile materials, especially body-centered cubic (BCC) steels, often exhibit an abrupt transition to brittle fracture, significantly limiting their applicability in cryogenic and low-temperature environments.
Minha Park, Gang Ho Lee, Byoungkoo Kim, Sanghoon Noh, Jong Bae Jeon, Changwoo Lee, Byung Jun Kim   +6 more
doaj   +1 more source

On the exceptional damage-tolerance of gradient metallic materials [PDF]

, 2020
An experimental study is described on the fracture toughness and micro-mechanisms associated with the initiation and propagation of cracks in metallic nickel containing marked gradients in grain size, ranging from ∼30 nm to ∼4 μm.
Cao, R, Li, Y, Lin, Y, Pan, J, Ritchie, RO, Sweet, A, Yu, Q   +6 more
core  

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Precise Microstructural and Stoichiometric Control Advances Flexible Ag2Te Thin‐Film Thermoelectrics for Wearable Energy Harvesting

Advanced Materials, EarlyView.
Flexible Ag2Te thin films achieving a record‐high mobility of 4756 cm2 V−1 s−1 and a peak power factor of 18.5 µW cm−1 K−2 are developed via precise structural control. The assembled flexible devices demonstrate excellent mechanical stability and ultrafast voltage response, enabling precise thermal detection when integrated into a robotic gripper for ...
Yue‐Xing Chen, Xiao‐Lei Shi, Ning Chen, Dong Yang, Zhongzhao Zha, Hanwen Xu, Mohammad Nisar, Tianyi Cao, Boxuan Hu, Meng Li, Ziya Wang, Fu Li, Guangxing Liang, Jingting Luo, Zhuanghao Zheng, Zhi‐Gang Chen   +15 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source