Results 61 to 70 of about 115,031 (307)

Agente espumante e seus efeitos nas propriedades físicas de alumina porosa Foaming agent and the effects on the physical properties of porous alumina

Cerâmica, 2006
Cerâmicas porosas têm sido aplicadas em processos de refino, microfiltração de líquidos e emulsões e, também, como isolantes térmicos a altas temperaturas.
V. R. Salvini, J. R. Garcia, I. R. de Oliveira, V. C. Pandolfelli   +3 more
doaj   +1 more source

Diffusive transport of light in three-dimensional disordered Voronoi structures

, 2012
The origin of diffusive transport of light in dry foams is still under debate. In this paper, we consider the random walks of photons as they are reflected or transmitted by liquid films according to the rules of ray optics.
A. Okabe, D. Weaire, G. H. Weiss, G. I. Taylor, Holger Stark, J. R. Reitz, K. Brakke, MirFaez Miri, P. J. Flory, P. Sheng, R. Fürth, Zeinab Sadjadi   +11 more
core   +1 more source

Spin Foams and Noncommutative Geometry [PDF]

, 2010
We extend the formalism of embedded spin networks and spin foams to include topological data that encode the underlying three-manifold or four-manifold as a branched cover.
Aastrup J, Aastrup J, Aastrup J Grimstrup J M, Aastrup J Grimstrup J M Paschke M, Aastrup J Grimstrup J M Paschke M, Aastrup J Grimstrup J M Paschke M Nest R, Ahmad Zainy al-Yasry, Baez J C, Bobtcheva I Piergallini R, Bratteli O, Bratteli O, Brodzki J, Chamseddine A H, Connes A, Connes A, Domenic Denicola, Duston C, Engle J, Fox R H, Hamber H W, Kauffman L H, Kinoshita S, Matilde Marcolli, Penrose R, Ponzano G, Prasolov V V, Rovelli C, Schleich K, Stillwell J, Zainy al-Yasry A   +29 more
core   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Natural tannin-based rigid foams as insulation for doors and wall panels

Maderas: Ciencia y Tecnología, 2014
Tannin-based rigid foams were shown to be good thermal insulating materials for use in the cavity of hollow-core wooden doors and other wooden cavities. Their thermal insulation capacity is comparable to that of totally synthetic, oil-derived foams, such
G. Tondi, A. Pizzi, R. Olives
doaj  

Mechanical Decrosslinking and Reprocessing of Crosslinked Rotomolded Polypropylene Using Cryogenic-Assisted Shear Pulverization and Compression Molding

Recycling
This paper presents a novel recycling approach for porous/foamed crosslinked rotomolded polypropylene (xPP) parts, originally designed for lightweight and thermal insulation.
Hibal Ahmad, Denis Rodrigue
doaj   +1 more source

Enhanced Compressive Property of Al Composite Foams at Elevated Temperatures via Plasma Electrolytic Oxidation

Metals, 2018
The present work investigates the compressive property of Al matrix composite foams at different temperatures between room temperature and 200 °C. Elevated temperature results in a decreased compressive strength and energy absorption capacity of as ...
Huamin Liu, Wenchi Pan, Fujian Si, Kuo Huang, Yan Liu, Jiaan Liu   +5 more
doaj   +1 more source

Reuse of Eggshell Waste and Recycled Glass in the Fabrication Porous Glass–Ceramics

Applied Sciences, 2020
This study was conducted to fabricate and characterize of glass–ceramic foam derived from soda-lime silica (SLS) glass waste and eggshell (ES) waste as a foaming agent by using empirical formula [ES] × [SLS]100−x where x = 1 wt%, 3 wt%, 6 wt%, 9 wt%. The
Dur Iffa Saparuddin, Mohd Hafiz Mohd Zaid, Sidek Hj Ab Aziz, Khamirul Amin Matori   +3 more
doaj   +1 more source

Applications of Plant Polymer-Based Solid Foams: Current Trends in the Food Industry

Applied Sciences, 2021
Foams are a type of material of great importance, having an extensive range of applications due to a combination of several characteristics, such as ultra-low density, tunable porous architecture, and outstanding mechanical properties.
Marcela Jarpa-Parra, Lingyun Chen
doaj   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source