Results 111 to 120 of about 1,132,843 (309)

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Analysis of the main controlling factors of weathering rates in Yungang Grottoes sandstones

Zhongguo dizhi zaihai yu fangzhi xuebao
Analyzing the weathering rates and their main environmental controlling factors is fundamental in conserving rocky relics. In this study, using the sandstones of the Yungang Grottoes as a case study, the rock weathering rates were quantitatively ...
Nan SUO, Jinming XU, Baoming LU
doaj   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Optical properties of Bi2Te2Se at ambient and high pressure

, 2012
The temperature dependence of the complex optical properties of the three-dimensional topological insulator Bi2Te2Se is reported for light polarized in the a-b planes at ambient pressure, as well as the effects of pressure at room temperature.
Akrap, Ana, Giannini, Enrico, Homes, Christopher C., Lerch, Philippe, Teyssier, J., Tran, Michael, Ubaldini, Alberto, van der Marel, Dirk   +7 more
core   +2 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Pressure Induced Changes in the Antiferromagnetic Superconductor YbPd2Sn [PDF]

, 2006
Low temperature ac magnetic susceptibility measurements of the coexistent antiferromagnetic superconductor YbPd2Sn have been made in hydrostatic pressures < 74 kbar in moissanite anvil cells. The superconducting transition temperature is forced to T(SC) =
Alireza, P. L., Bernhoeft, N. R., Cumberlidge, A-M., Kusmartseva, A. F., Lonzarich, G. G., Pearson, E. E., Roessli, B.   +6 more
core   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Metabolism disruption induced by high ambient temperature

Hygiene and Environmental Health Advances
Background: Previous studies have assessed the cardiovascular risk attributable to high ambient temperature. However, the mechanisms underly acute cardiovascular responses associated with high ambient temperature remain incompletely understood. Objective:
Ke Zhang, Gongbo Chen, Wan Liu, Jie He, Mengnan Pan, Zhongyang Chen, Jiahui Tong, Feifei Liu, Hao Xiang   +8 more
doaj   +1 more source

Development of ambient temperature secondary lithium cells [PDF]

JPL is developing ambient temperature secondary lithium cells for future spacecraft applications. Prior studies on experimental laboratory type Li-TiS2 cells yielded promising results in terms of cycle life and rate capability.
Dawson, S., Deligiannis, F., Halpert, Gerald, Shen, D. H., Subbarao, S., Taraszkiewicz, J.   +5 more
core   +1 more source