Results 21 to 30 of about 12,791 (186)

From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics

Advanced Engineering Materials, EarlyView.
Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad, Hamidreza Yazdani Sarvestani, Behnam Ashrafi, Farjad Shadmehri, Mehdi Hojjati   +4 more
wiley   +1 more source

Kinematically Detected Halo Streams

, 2016
Clues to the origins and evolution of our Galaxy can be found in the kinematics of stars around us. Remnants of accreted satellite galaxies produce over- densities in velocity-space, which can remain coherent for much longer than spatial over-densities ...
Smith, Martin C.
core   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

On the Deformation Behavior of Metastable CrMnNi Steels Processed by Directed Energy Deposition in Different Temperature Regimes

Advanced Engineering Materials, EarlyView.
In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter, Thomas Wegener, Florian Stredak, Gert Bartzsch, Steffen Scherbring, Javad Mola, Olena Volkova, Stefan Böhm, Thomas Niendorf   +8 more
wiley   +1 more source

The JCMT Transient Survey: An Extraordinary Submillimetre Flare in the T Tauri Binary System JW 566 [PDF]

, 2018
The binary T Tauri system JW 566 in the Orion Molecular Cloud underwent an energetic, short-lived flare observed at submillimetre wavelengths by the SCUBA-2 instrument on 26 November 2016 (UT).
Bell, Graham S., Bower, Geoffrey C., Chen, Wen-Ping, Forbrich, Jan, Hacar, Alvaro, Herczeg, Gregory J., Johnstone, Doug, Lalchand, Bhavana, Lee, Jeong-Eun, Mairs, Steve   +9 more
core   +4 more sources

Single‐Crystal Castability of CM186LC Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The optimal conditions to obtain single‐crystal (SX) castings of the directional solidification nickel‐based superalloy CM186LC, are investigated. Cylindrical samples are cast via a proprietary SX Bridgman process. The effect of solidification rates (V) ranging from 1 to 10 mm⋅min−1 on the microstructure is explored.
André Baldissera, Sean Böhm, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Microstructural Evolution and Mechanical Properties of a Medium‐Manganese Steel Manufactured by Laser‐Based Powder Bed Fusion of Metals

Advanced Engineering Materials, EarlyView.
Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner, Bugra Köksal, Thomas Wegener, Christian Haase, Thomas Niendorf   +4 more
wiley   +1 more source

Optimizing Laser Ablation of Stainless Steels for Volume Removal and Surface Quality Using Burst of Pulses

Advanced Engineering Materials, EarlyView.
This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell, Bahman Azarhoushang, Andrés Fabián Lasagni   +2 more
wiley   +1 more source

JCMT POL-2 and ALMA polarimetric observations of 6000-100 au scales in the protostar B335: linking magnetic field and gas kinematics in observations and MHD simulations

, 2019
We present our analysis of the magnetic field structures from 6000 au to 100 au scales in the Class 0 protostar B335 inferred from our JCMT POL-2 observations and the ALMA archival polarimetric data.
Hsieh, I-Ta, Koch, Patrick, Krasnopolsky, Ruben, Lee, Chin-Fei, Li, Zhi-Yun, Liu, Sheng-Yuan, Ohashi, Nagayoshi, Takakuwa, Shigehisa, Tang, Ya-Wen, Yen, Hsi-Wei, Zhao, Bo   +10 more
core   +1 more source

MOA-2016-BLG-227Lb: A Massive Planet Characterized by Combining Light-curve Analysis and Keck AO Imaging [PDF]

, 2017
We report the discovery of a microlensing planet—MOA-2016-BLG-227Lb—with a large planet/host mass ratio of q ≃ 9 × 10−3. This event was located near the K2 Campaign 9 field that was observed by a large number of telescopes.
A. Bhattacharya, A. Cassan, A. Fukui, A. Sharan, A. Yonehara, Alard C., Alcock C., Arnaboldi M., Batista V., Batista V., Beaulieu J.-P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bennett D. P., Bhattacharya A., Bond I. A., Bond I. A., Boyajian T. S., C. B. Henderson, C. Beichman, C. H. Ling, C. R. Gelino, C. Ranc, C. Snodgrass, Carpenter J. M., Chung S.-J., D. J. Sullivan, D. M. Bramich, D. Maoz, D. P. Bennett, D. Suzuki, E. Bachelet, E. Kerins, F. Abe, Fukui A., G. Bryden, Gilmozzi R., H. Korhonen, H. Shibai, Henderson C. B., I. A. Bond, J.-B. Marquette, J.-P. Beaulieu, Johnson C. I., Johnson J. A., K. Masuda, K. Ohnishi, Kennedy G. M., Koshimoto N., Koshimoto N., Kuijken K., Laughlin G., M. C. A. Li, M. Dominik, M. Donachie, M. Friedmann, M. Hundertmark, M. Nagakane, M. T. Penny, Montet B. T., Muraki Y., N. Hallakoun, N. J. Rattenbury, N. Koshimoto, Nagashima C., Nataf D. M., Nishiyama S., Nishiyama S., P. Evans, P. Fouqué, P. J. Tristram, R. Street, S. B. Howell, S. Calchi Novati, S. Kaspi, S. Mao, Schechter P. L., Shvartzvald Y., Siverd R. J., Spergel D., Sumi T., Sumi T., Szymański M. K., T. Matsuo, T. S. Wang, T. Sumi, T. Yamada, T. Yamada, To. Saito, U. G. Jørgensen, Udalski A., V. Batista, V. Bozza, Verde L., W. C. Zang, Y. Asakura, Y. Hirao, Y. Itow, Y. Matsubara, Y. Muraki, Y. Shvartzvald, Y. Tsapras, Yee J. C., Yoo J.   +109 more
core   +4 more sources