Results 141 to 150 of about 321,109 (289)

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Spin–Orbit Alignment in Merging Binary Black Holes Following Collisions with Massive Stars

The Astrophysical Journal Letters
Merging binary black holes (BBHs) formed dynamically in dense star clusters are expected to have uncorrelated spin–orbit orientations since they are assembled through many random interactions.
Fulya Kıroğlu, James C. Lombardi Jr., Kyle Kremer, Hans D. Vanderzyden, Frederic A. Rasio   +4 more
doaj   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

Massive Star Cluster Formation with Binaries. I. Evolution of Binary Populations

The Astrophysical Journal
We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 × 10 ^4 to 3.2 × 10 ^5 M _⊙ .
Claude Cournoyer-Cloutier, Alison Sills, William E. Harris, Brooke Polak, Steven Rieder, Eric P. Andersson, Sabrina M. Appel, Mordecai-Mark Mac Low, Stephen McMillan, Simon Portegies Zwart   +9 more
doaj   +1 more source

Laboratory analogue of a supersonic accretion column in a binary star system. [PDF]

Nat Commun, 2016
Cross JE, Gregori G, Foster JM, Graham P, Bonnet-Bidaud JM, Busschaert C, Charpentier N, Danson CN, Doyle HW, Drake RP, Fyrth J, Gumbrell ET, Koenig M, Krauland C, Kuranz CC, Loupias B, Michaut C, Mouchet M, Patankar S, Skidmore J, Spindloe C, Tubman ER, Woolsey N, Yurchak R, Falize É.   +24 more
europepmc   +1 more source

Nanoindentation Criteria for Combinatorial Thin Film Libraries

Advanced Engineering Materials, EarlyView.
Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley   +1 more source

Extended main sequences in star clusters

Fundamental Research
Extended main sequences (eMSs) and extended main-sequence turn-offs (eMSTOs) are fascinating phenomena that are routinely observed in star clusters. These phenomena strongly challenge the current canonical “simple stellar population” picture of star ...
Chengyuan Li, Antonino P. Milone, Weijia Sun, Richard de Grijs   +3 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Supermassive black hole growth from stellar binary encounters

The Open Journal of Astrophysics
The growth of supermassive black holes (SMBHs) remains a central problem in astrophysics, with current observations providing only limited constraints on the underlying mechanisms. One possible growth channel is stellar accretion via the Hill’s mechanism,
Aubrey L Jones, Benjamin C Bromley
doaj   +1 more source