Results 61 to 70 of about 375,479 (331)

Direct Natural and Artificial Aging of Aluminum Alloy AlSi10Mg After Laser Powder‐Bed Fusion

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
Laser powder‐bed fusion of metals aluminum alloy AlSi10Mg has been directly aged. Artificial aging after natural aging is considered. The hardening potential is high for the top part of the samples as well as after short natural aging. The hardening potential is substantially reduced for the bottom part of the samples, as well as after natural aging of
Rabea Steuer, Benjamin Milkereit, Sigurd Wenner, Jette Broer, Florian Huber, Mirko Schaper, Olaf Kessler   +6 more
wiley   +1 more source

Metallic Strontium as a Precursor of the Al₂O₃/SrCO₃ Xerogels Obtained by the One-Pot Sol–Gel Method

Gels, 2022
Two series of binary xerogel systems of Sr/Al with molar ratios of 0.1, 0.25, 0.5, and 1.0 were synthesized by the sol–gel technique with metallic strontium component as a precursor.
Eliza Romanczuk-Ruszuk, Bogna Sztorch, Zbigniew Oksiuta, Robert E. Przekop   +3 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Effect of Mechanical Activation and Excess Graphite on the Formation of SrCO3 from Celestite Via Black-Ash Method [PDF]

Iranian Journal of Materials Science and Engineering
Celestite ore, the primary mineral for producing strontium compounds, particularly strontium carbonate, is processed using the black ash method, which involves carbothermic reduction, water leaching, and carbonation.
zahra rezayi, mostafa mirjalili, jalil Vahdati Khaki   +2 more
doaj  

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng, Mengran Li, Vanessa K. Peterson, Rijia Lin, Anita D'Angelo, Olexandra Marenych, Anya Yago, Dominique Appadoo, Tianjiu Zhu, Muhammad Yazid Bin Zulkifli, Shuai Gao, Yuming Wu, Xiaohe Tian, Xiaoyang Du, Zhonghua Zhu   +14 more
wiley   +1 more source

The influence of different radiopacifying agents on hermetical sealing ability of calcium silicate and calcium aluminate dental cements [PDF]

Science of Sintering
This study presents technological process for obtaining strontium enriched calcium silicate based dental ceramics and testing their microstructural and chemical properties. In brief, the influence of different radiopacifiers on microstructural properties
Ćetković Dejan, Zhiyu Cai, Vuković Nemanja, Vuković Zorica, Lei Huaxiang, Biočanin Vladimir, Huang Xiaojing, Jokanović Vukoman, Antonijević Đorđe, Dožić Aleksandra   +9 more
doaj   +1 more source

Selective extraction of strontium with supercritical fluid carbon dioxide [PDF]

Chemical Communications, 1999
Strontium (Sr(2+)) can be selectively extracted from aqueous solutions into supercritical fluid CO(2) at 60 °C and 100 atm with dicyclohexano-18-crown-6 (DC18C6) using CF(3)(CF(2))(6)CO(2) (-) (PFOA(-)) or CF(3)(CF(2))(6)CF(2)SO(3) (-) (PFOSA(-)) as a counter anion; at a mole ratio of Sr(2+) : DC18C6 : PFOA(-) = 1:10:50, the extraction of Sr (5.6 × 10(-
Chien M. Wai, Hwa-Kwang Yak, Yurii Kulyako, Xiaoyuan Chen, Suh-Jane Lee   +4 more
openaire   +3 more sources

Off‐Stoichiometry Engineering of the Electrical and Optical Properties of SrNbO3 Using Oxide Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The plasma edge of transparent conducting oxide SrNbO3 shifts from ∼2 eV in the visible range to 1.37 eV in the near‐infrared region by off‐stoichiometry using the vacancy sites as quasi‐substitutional virtual elements. This work advances the stoichiometry engineering of perovskite oxides using oxide molecular beam epitaxy, allowing synthesis beyond ...
Jasnamol Palakkal, Alexey Arzumanov, Ruiwen Xie, Zhiyuan Li, Niloofar Hadaeghi, Thomas Wagner, Tianshu Jiang, Yating Ruan, Gennady Cherkashinin, Leopoldo Molina Luna, Hongbin Zhang, Lambert Alff   +11 more
wiley   +1 more source

Trace element partitioning controls on cave drip water compositions through prior calcite and aragonite precipitation

Communications Earth & Environment
Speleothem trace element records can provide seasonal resolution climate reconstructions, but the interpretation can be challenging. Aragonite samples are understudied compared to calcite samples, despite that aragonite has 10x higher uranium ...
Jasper A. Wassenburg, Anupam Samanta, Lijuan Sha, Hosun Lee, Denis Scholz, Hai Cheng, Brigitte Stoll, Yassine Ait Brahim, Alexander Budsky, Sebastian F. M. Breitenbach   +9 more
doaj   +1 more source

The Role of Calcium and Strontium as the Most Dominant Elements during Combinations of Different Alkaline Earth Metals in the Synthesis of Crystalline Silica-Carbonate Biomorphs

Crystals, 2019
The origin of life from the chemical point of view is an intriguing and fascinating topic, and is of continuous interest. Currently, the chemical elements that are part of the different cellular types from microorganisms to higher organisms have been ...
M. Cuéllar-Cruz, A. Moreno
semanticscholar   +1 more source