Results 51 to 60 of about 107,839 (301)

Structurally colored silica foams using colloidal templating

Frontiers in Soft Matter, 2023
We produce solid silica dry foam structures that exhibit structural color. For this purpose, we use densely packed colloidal microgels decorated with silica nanoparticles that are much smaller than the microgels.
Kalpana Manne, Sofia Magkiriadou, Pavel Yazhgur, Ahmet F. Demirörs, Frank Scheffold   +4 more
doaj   +1 more source

Drag on particles in a nematic suspension by a moving nematic-isotropic interface [PDF]

, 2002
We report the first clear demonstration of drag on colloidal particles by a moving nematic-isotropic interface. The balance of forces explains our observation of periodic, strip-like structures that are produced by the movement of these ...
Anatoliy Glushchenko, B. I. Lev, Denis Andrienko, Guangxun Liao, H. Stark, J. C. Loudet, J. L. Billeter, J. Loudet, John L. West, M. Tintaru, Michael P. Allen, O. V. Kuksenok, P. Poulin, P. Poulin, S. P. Meeker, T. C. Lubensky, V. J. Anderson, V. J. Anderson, Yuriy Reznikov   +18 more
core   +2 more sources

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Agentes ligantes para concretos refratários: sílica coloidal e alumina hidratável Colloidal silica and hydratable alumina as refractory binder agents

Cerâmica, 2007
Sílica coloidal e alumina hidratável destacam-se como importantes alternativas à substituição do cimento de aluminato de cálcio como agentes ligantes para concretos refratários aluminosos.
M. R. Ismael, R. Salomão, L. A. Polito, V. C. Pandolfelli   +3 more
doaj   +1 more source

Antibacterial Fluorinated Silica Colloid Superhydrophobic Surfaces [PDF]

Langmuir, 2011
A superhydrophobic xerogel coating synthesized from a mixture of nanostructured fluorinated silica colloids, fluoroalkoxysilane, and a backbone silane is reported. The resulting fluorinated surface was characterized using contact angle goniometry, SEM, and AFM.
Benjamin J, Privett, Jonghae, Youn, Sung A, Hong, Jiyeon, Lee, Junhee, Han, Jae Ho, Shin, Mark H, Schoenfisch   +6 more
openaire   +2 more sources

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Influence of Magnesia on Demoulding Strength of Colloidal Silica-Bonded Castables

Reviews on Advanced Materials Science, 2019
The change in demoulding strength of colloidal silica-bonded castables with and without magnesia is investigated with emphasis on the relationship between the demoulding strength and chemical bond changes.
Zhang Yang, Zhu Lingling, Chen Liugang, Liu Luoqiang, Ye Guotian   +4 more
doaj   +1 more source

Viscoelasticity of colloidal polycrystals doped with impurities [PDF]

, 2015
We investigate how the microstructure of a colloidal polycrystal influences its linear viscoelasticity. We use thermosensitive copolymer micelles that arrange in water in a cubic crystalline lattice, yielding a colloidal polycrystal.
Cipelletti, Luca, Louhichi, Ameur, Oberdisse, Julian, Ramos, Laurence, Tamborini, Elisa   +4 more
core   +3 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Self-Assembly Kinetics of Colloidal Particles inside Monodispersed Micro-Droplet and Fabrication of Anisotropic Photonic Crystal Micro-Particles

Crystals, 2016
A new microfluidic approach to preparing anisotropic colloidal photonic crystal microparticles is developed and the self-assembly kinetics of colloidal nanoparticles is discussed.
Ming-Yu Zhang, Ke Xu, Jian-Hong Xu, Guang-Sheng Luo   +3 more
doaj   +1 more source