Results 51 to 60 of about 355,438 (294)

Enhancement of Ethylene-Butene Terpolymer Performance via Carbon Nanotube-Induced Nanodispersion of Montmorillonite Layers

open access: yesCrystals
In this study, the enhancement mechanism of the nano-dispersion of stearic acid-modified montmorillonite (SMMT) induced by carbon nanotubes (CNTs) in ethylene-butene terpolymer (EBT) was comprehensively investigated, and the regulation effect of ...
Li Zhang   +13 more
doaj   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Poppet valve tester [PDF]

open access: yes, 1973
Tester investigates fundamental factors affecting cyclic life and sealing performance of valve seats and poppets. Tester provides for varying impact loading of poppet against seat and rate of cycling, and controls amount and type of relative motion ...
Tellier, G. F.
core   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat   +5 more
wiley   +1 more source

Extra hole threshold in HfO2 ferroelectric phase stabilization

open access: yesCommunications Physics
Understanding ferroelectric phase stability in hafnium-based oxides is crucial for high-quality thin-film fabrication and device applications. Multiple strategies stabilize the phase, with evidence highlighting extra holes’ key role. However, research on
Xixiang Jing   +14 more
doaj   +1 more source

Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts

open access: yesScience, Engineering and Technology
High-speed turbines are a major source for power production. They utilize high pressure and temperature fluid flow. Sealing of these machines to decrease the flow losses has been a major engineering challenge since the inception of steam turbines.
Nonso Omenife, Dawood Desai, Regan Dunne
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Evacuation port seal Patent [PDF]

open access: yes, 1968
Sealing evacuation port and evacuating vacuum container such as space ...
Woller, J. A.
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

THE SACREDNESS OF SOME SEALS AND ITS RELATIONSHIP TO GOD THOTH [PDF]

open access: yesJournal of the General Union of Arab Archaeologists, 2016
( En ) Seals played an important role in ancient Egypt. They were not only used as administrative securing devices for the state bureaucracy, private individual, documents, containers, places, but also as amulets during daily life and in the netherworld.
Hayam Rawash
doaj   +1 more source

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