Results 81 to 90 of about 708,954 (300)

Globally Anisotropic High Porosity Silica Aerogels

, 2007
We discuss two methods by which high porosity silica aerogels can be engineered to exhibit global anisotropy. First, anisotropy can be introduced with axial strain.
Aoyama, Baker, Balzarini, Brownlee, Cantin, Chan, Clark, Davis, Emmerling, Freltoft, Fricke, Gray, Gross, H. Choi, Hasmy, Hecht, Hrubesh, Hunt, J. Pollanen, J.P. Davis, Jacobsen, K.R. Shirer, L.B. Lurio, Miller, Mindess, Poco, S. Blinstein, Schaefer, T.M. Lippman, Teichner, Vacher, W.P. Halperin, Winkelmolen, Witten, Woignier   +34 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Pervious concrete made with electric furnace slag (FEA): mechanical and hydraulic properties

Revista IBRACON de Estruturas e Materiais
The objective of this work is to make feasible the use of FEA slag instead of the conventional bulk aggregate in the pervious concrete (PC) production, reaching the minimum parameters required by NBR16416/2015 and ACI 522R-10.
G. F. B. SANDOVAL, I. GALOBARDES, C. DIAS, A. CAMPOS, B. M. TORALLES   +4 more
doaj   +2 more sources

Effect of dust grain porosity on the appearance of protoplanetary disks [PDF]

, 2014
We theoretically analyze protoplanetary disks consisting of porous dust grains. In the analysis of observations of protoplanetary disks the dust phase is often assumed to consist of spherical grains, allowing one to apply the Mie scattering formalism ...
Kirchschlager, F., Wolf, S.
core   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

The Microstructures of Tetradesmus obliquus Biofilms Formed Under Different Nutrient Supplies

Applied Sciences
The microstructures of microalgae biofilms affect biofilms’ growth, which is critical in developing efficient microalgae biofilm-based culture systems. Herein, the microstructures of Tetradesmus obliquus biofilms cultured under different nutrients were ...
Hu Zhang, Guan Chen, Zhiying Sun, Xinru Zhang, Zeyi Jiang, Xinxin Zhang   +5 more
doaj   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Porous titanium scaffolds produced by powder metallurgy for biomedical applications

Materials Research, 2008
Porous titanium scaffolds are promising materials for biomedical applications such as prosthetic anchors, fillers and bone reconstruction. This study evaluated the bone/titanium interface of scaffolds with interconnected pores prepared by powder ...
Luana Marotta Reis de Vasconcellos, Marize Varella de Oliveira, Mário Lima de Alencastro Graça, Luis Gustavo Oliveira de Vasconcellos, Yasmin Rodarte Carvalho, Carlos Alberto Alves Cairo   +5 more
doaj   +1 more source

Designing bio-mimetic variational porosity for tissue scaffolds [PDF]

, 2012
Reconstructing or repairing the damaged or diseased tissues with porous scaffolds to restore the mechanical, biological and chemical functions is one of the major tissue engineering strategies.
Khoda, AKM, Koc, Bahattin, Koç, Bahattin   +2 more
core  

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source