Results 71 to 80 of about 84,989 (345)

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Analysis of Young's modulus for Carboniferous sedimentary rocks and its relationship with uniaxial compressive strength using different methods of modulus determination

Journal of Sustainable Mining, 2018
Young’s modulus (E) is one of the basic geomechanical parameters used in rock engineering in practice. It is determined based on uniaxial compressive test (UCS).
Piotr Małkowski, Łukasz Ostrowski, Jarosław Brodny   +2 more
doaj   +1 more source

First-principles study of the Young's modulus of Si <001> nanowires [PDF]

, 2006
We report the results of first-principles density functional theory calculations of the Young's modulus and other mechanical properties of hydrogen-passivated Si nanowires.
Byeongchan Lee, C. M. Lieber, R. E. Rudd, Robert E. Rudd   +3 more
core   +2 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
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

The sound of porosity: Suitability of the impulse excitation technique (IET) to determine the Young's modulus of 2D macroporous ceramics

Open Ceramics
The presence of pores in a ceramic leads to a lower Young's modulus compared to dense material. For the development of porous ceramics with tailored elastic properties, an exact determination of the Young's modulus is required, especially for industrial ...
Tim Stötzel, Swantje Funk, Tobias Fey
doaj   +1 more source

Effect of Additional Mass on the Apparent Young’s Modulus of a Wooden Bar by Longitudinal Vibration

BioResources, 2014
We investigated the influence of an additional mass bonded on a wooden bar on its apparent Young’s modulus based on a longitudinal vibration theory. Rectangular bars of Sitka spruce (Picea sitchensis Carr.) were used as experimental materials.
Yoshitaka Kubojima, Youki Suzuki, Mario Tonosaki   +2 more
doaj   +1 more source

An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests

Advances in Materials Science and Engineering, 2022
Recent studies have indicated that the addition of a diluent significantly affect its mechanical properties and performance of a coating, but no works have been reported on the influence of diluent content on the Young’s modulus of a coating, and the ...
Chao Xie, Xiaoxu Lin, Qicai Wang, Bentian Yu, Sheng Li   +4 more
doaj   +1 more source

Resonant helical deformations in nonhomogeneous Kirchhoff filaments

, 2004
We study the three-dimensional static configurations of nonhomogeneous Kirchhoff filaments with periodically varying Young's modulus. This type of variation may occur in long tandemly repeated sequences of DNA.
Alexandre F. da Fonseca, Anselmi, Aquilina, Bouchiat, C.P. Malta, Charlesworth, Coleman, Coleman, Coleman, Coyne, da Fonseca, da Fonseca, Davies, Dill, Fonseca, Goriely, Goriely, Goriely, Goriely, Gromiha, Henderson, Hsieh, Kirchhoff, Klapper, M.A.M. de Aguiar, Macgregor, Manning, Marko, McAllister, Mielke, Neukirch, Neukirch, Nizette, Norris, Olson, Olson, Olson, Panyukov, Schlick, Shi, Sun, Tobias, van der Heijden, Vaz, Wolgemuth, Yang, Zajac   +46 more
core   +1 more source

A corpus-based lexical and grammatical error identification: L2 learners academic writing [PDF]

, 2021
Writing in English has never been an easy task to many second language (L2) learners. Many of them perform poorly in their English academic writing where numerous lexical and grammatical errors are found in their report.
Talib, Salleh
core