Results 101 to 110 of about 202,213 (313)

Electrical and Physical Characterization of Bulk Ceramics and Thick Layers of Barium Titanate Manufactured Using Nanopowders [PDF]

, 2007
Fine powders of BaTiO3 are synthesized by hydrothermal processing at 250 C for 7 h. Two different starting mixtures were used, TiCl3 + BaCl2 and TiO2 + BaCl2. The size of the resulting crystallites was close to 20 nm in both cases.
Durand, Bernard, Castelan, Philippe, Nguyen, Dinh Quang, Bley, Vincent, Combettes, Céline, Lebey, Thierry, Boulos, Madona, Guillemet-Fritsch, Sophie   +7 more
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Evaluating the Use of Chicken Eggshell Waste for Synthesizing Nano-Sized Calcium Aluminate Powder by Combining High-Energy Milling and Calcination

Powders
In recent years, sustainable recycling approaches for chicken eggshell waste have increased significantly worldwide due to environmental and circular economy benefits.
Fernanda Santos Maia Luna, Andrey Escala Alves, José Nilson França Holanda   +2 more
doaj   +1 more source

Nonthermal Plasma Reduction of Nickel Oxide Layers by Atmospheric Pressure Dielectric Barrier Discharge in Argon/Hydrogen

Advanced Engineering Materials, EarlyView.
This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi, Viktor Udachin, Sascha Jan Zimmermann, Alexander Tillmanns, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +5 more
wiley   +1 more source

Mechanical Properties and Powder Rheology of Conventional and Innovative Excipients for Food Supplements in Solid Form

Powders
The growing regulatory scrutiny and the emerging trends towards natural products and clean labels have led to a particular focus on food supplements’ composition, including excipients. The objective of this study is to establish a methodological approach
Giovanni Tafuro, Marta Faggian, Paola Soppelsa, Silvia Baracchini, Elena Casanova, Stefano Francescato, Giovanni Baratto, Stefano Dall’Acqua, Andrea Claudio Santomaso, Alessandra Semenzato   +9 more
doaj   +1 more source

In-situ synthesis of AlN powders and composite AlN powders with yttrium addition

, 2002
Using Al-Mg and Al-Mg-Y alloys as raw materials and nitrogen as gas reactants, AIN powders and composite AIN powders by in-situ synthesis method were prepared.
Zhou ML, Wang Q, Zheng XH, Li CG, Lin ZL
core  

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Ammonium Paratungstate Production from Scheelite Ore: Process Study, Morphology and Thermal Stability

Powders
Ammonium paratungstate (APT) was synthesized from scheelite ore concentrates from the Brejuí Mine in Currais Novos, Rio Grande do Norte, Northeast Brazil.
Maria José Lima, Fernando E. S. Silva, Cleber da Silva Lourenço, Ariadne Silva, Jussier Vitoriano, Kivia Araujo, Matheus Silva, Marco Morales, Uílame Gomes   +8 more
doaj   +1 more source

Reactivity of aluminum sulfate and silica in molten alkalimetal sulfates in order to prepare mullite [PDF]

, 2004
With the aim of preparing mullite, reactions between aluminum sulfate and silica in appropriate proportions and molten sulfate media M2SO4 (M=Na and/or K) were performed at different temperatures.
Durand, B., Er-Rakho, Lahcen, Moussa, Redouane, Guillemet, Sophie, Samdi, A., Er Rakho, L., Er Rakho, Lahcen, Durand, Bernard, Samdi, Azzeddine, Ouatib, Rachida El, El Ouatib, Rachida, Guillemet-Fritsch, Sophie, Moussab, Redouane, Guillemet, S.   +13 more
core   +1 more source

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