Results 171 to 180 of about 54,813 (368)

Novel Strontium Carbides Under Compression [PDF]

arXiv
Exploring the chemistry of materials at high pressures has lead to the discovery of previously unknown exotic compounds. Here, we systematically search for all thermodynamically stable Sr-C compounds under pressure (up to 100 GPa) using the ab initio evolutionary crystal structure prediction method.
arxiv  

Sol–Gel Thin Films for the Protection of Ancient Glass Artifacts: A Performance Comparison Between Inorganic and Hybrid Silica Compositions

Advanced Materials Interfaces, EarlyView.
This study explores the development of sol–gel coatings for archaeological glass conservation. By formulating silica‐based solutions with low acid concentrations and applying them via dip coating, protective films are prepared at room temperature. Analysis reveals that hybrid coatings with methyl and octyl groups provide superior protection against ...
Stefano Centenaro, Elti Cattaruzza, Antonella Glisenti, Leonardo Puppulin, Giulia Franceschin, Arianna Traviglia   +5 more
wiley   +1 more source

Strontium isotope stratigraphy: LOWESS version 3: best fit to the marine Sr-isotope curve for 0-509 Ma and accompanying look-up table for deriving numerical age [PDF]

, 2001
An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr record and a revised look-up table (V3:10/99; available from j.mcarthur@ucl.ac.uk) based upon it enables straightforward conversion of 87Sr/86Sr to numerical age, and ...
Bailey, T.R., Howarth, R.J., McArthur, J.M.   +2 more
core  

Self‐Supporting Graphene Foam for the Removal of Chlorine from Water

Advanced Materials Interfaces, EarlyView.
Graphene‐based porous materials are promising for sorption and catalysis but often require binders. This study presents a self‐supporting graphene foam made from graphene oxide and hydrazine vapor. Structural, mechanical, and functional analyses confirm its superior chlorine removal efficiency (97%) and reusability, outperforming activated carbon in ...
Konrad Dybowski, Grzegorz Romaniak, Bartłomiej Januszewicz, Anna Sobczyk‐Guzenda, Jacek Grabarczyk, Adam K. Puszkarz, Anna Jędrzejczak   +6 more
wiley   +1 more source

A spectroscopic study of the pyrolysis of strontium carbonate [PDF]

Journal of Applied Spectroscopy, 1971
Z. N. Zemtsova, M. M. Pavlyuchenko, E. A. Prodan   +2 more
openaire   +2 more sources

Surface Properties of p‐GaN and Formation of Nickel Metal Contacts

Advanced Materials Interfaces, EarlyView.
The amount of C, O, and Mg–O bonds on the surface of p‐GaN can be reduced while still maintaining the surface morphology by potassium hydroxide (KOH) wet chemical treatment. Heating this surface with Ni on top in ultra‐high vacuum (UHV) results in a crystalline Ga‐Ni alloy and diffusion of Ga, which creates vacancies close to valence band leading to ...
Mikko Miettinen, Vesa Nuutila, Zahra Jahanshah Rad, Masoud Ebrahimzadeh, Anni Ruokonen, Risto Punkkinen, Juha‐Pekka Lehtiö, Marko Punkkinen, Pekka Laukkanen, Kalevi Kokko, Sami Suihkonen, Hele Savin, Weimin Wang   +12 more
wiley   +1 more source

Fluctuations of sea-water chemistry during Gargasian (Middle Aptian) time. Data from trace-element content (Mg, Sr, Mn, Fe) in hemipelagic carbonates from La Marcouline Quarry (Cassis, SE France)

Carnets de Géologie, 2007
In the Lower Aptian historical stratotype area (Cassis-La Bédoule, SE France), a geochemical study of the Gargasian (Middle Aptian) marl-limestone alternations of the La Marcouline quarry complements data already obtained from Bedoulian (Early Aptian ...
TRONCHETTI Guy, EMMANUEL Laurent, BELTRAN Catherine, MOULLADE Michel, RENARD Maurice, RAFELIS Marc de   +5 more
doaj  

A Strontium-rich Ultra Metal-poor Star in the Atari Disk Component [PDF]

arXiv
We report on the discovery of the first ultra metal-poor (UMP) star 2MASS~J20500194$-$6613298 (J2050$-$6613; \mbox{[Fe/H] = $-4.05$}) selected from the Gaia BP/RP spectral catalog that belongs to the ancient Atari disk component. We obtained a high-resolution spectrum for the star with the MIKE spectrograph on the Magellan-Clay telescope.
arxiv  

The effect of phosphate content on the bioactivity of soda-lime-phosphosilicate glasses [PDF]

, 2009
A Gorustovich, A Gorustovich, A Krajewski, C Rey, DM Sanders, FL Galeener, G Penel, H Grussaute, I Elgayar, J Serra, JC Knowles, LL Hench, M Regina, M Vallet-Regí, M. D. O’Donnell, MD O’Donnell, MD O’Donnell, ME Fleet, O Peitl, OP Filho, P Lange, R. G. Hill, R. V. Law, RV Santos, S. J. Watts, T Kokubo   +25 more
core   +1 more source

Solution‐Processable Polymer Nanocomposites for Electromagnetic Interference Shielding

Advanced Materials Interfaces, EarlyView.
This review introduces scalable strategies for fabricating solution‐processable polymer nanocomposites with improved electromagnetic interference (EMI) shielding performance. It compares three fabrication methods, including solution blending, in situ polymerization, and Pickering emulsion polymerization, and highlights their respective advantages in ...
Tuan Sang Tran, Lulu Xu, Per B. Zetterlund, Vipul Agarwal   +3 more
wiley   +1 more source