Showing 01 - 12 of 139 Results
Showing 01 - 12 of 139 Results
One of the most versatile classes of mesoporous materials are porous silicas which combine well defined pore sizes with the known biocompatibility of silica in a range of applications. An important property of a porous silica material is its ability to incorporate functional organics (R) on the silica wall.
Tailoring of porous materials involves not only stone synthetic techniques for tailoring microscopic properties such as pore size, pore shape, pore connectivity, and pore surface reactivity, but also materials processing techniques for tailoring the meso- and the macroscopic properties of bulk materials in the form of fibers, thin films, and monoliths. These issues are addressed in the
Understanding porous materials. Article by Julie Stewart Photo courtesy Yun Liu and Wei-Shan Chiang February 22, 2018. NIST and Aramco Services Company have developed a novel non-invasive method to measure the variation of surface properties deep inside porous materials.
This special issue of Materials will be devoted to exploring the wide range of types and applications of porous materials. Special emphasis will be devoted to new fabrication methods, new properties, and new applications of porous materials, and how these impact many different technologies. Prof. Dr. Jonah Erlebacher Guest Editor
Porous plastics retain most of the physical properties of their solid counterparts, but also offer a unique set of properties. The unique "tortuous filtration path" of the material produces high filtration efficiency combining the properties of both surface and depth filters.
Influence of Manufacturing Parameters on Mechanical Properties of Porous Materials by Selective Laser Sintering . by Dan Ioan Stoia, Emanoil Linul and Liviu Marsavina * Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, 1 Mihai
The structure of the porous modules can be fine‐tuned for specific applications, such as gas isotope separations, and in some cases the solid‐state properties of these materials can be defined by the structure of the porous molecule as viewed in isolation.
Porous silicon has been the focus of much R&D activity in recent years in view of its luminescence, which may enable light-emitting devices to be integrated with silicon chips. However, research into its properties has yielded the possibility of diverse novel applications (see below).
Properties of Building Materials For a material to be considered as building material, it should have required engineering properties suitable for construction works. These properties of building materials are responsible for its quality and capacity and helps to decide applications of these material.
The design and fabrication of 2D nano-porous architectures with controllable porosity and pore structure, as well as unique properties at the nanoscale are critical for applications such as separation, sensing, energy and catalysis. Perforation strategies across 2D materials, primarily graphene, have shown p Recent Review Articles
Porous thermoplastic polyurethane (TPU) membranes were produced by the electrospinning process. Two different TPUs and their blends were used to investigate the effects of material composition, solution concentration, and rheological properties on the microstructure, fiber diameter, and fiber diameter distribution of the electrospun membranes.
Porous silicon has been the focus of much R&D activity in recent years in view of its luminescence, which may enable light-emitting devices to be integrated with silicon chips. However, research into its properties has yielded the possibility of diverse novel applications (see below).
Properties of Building Materials For a material to be considered as building material, it should have required engineering properties suitable for construction works. These properties of building materials are responsible for its quality and capacity and helps to decide applications of these material.
The design and fabrication of 2D nano-porous architectures with controllable porosity and pore structure, as well as unique properties at the nanoscale are critical for applications such as separation, sensing, energy and catalysis. Perforation strategies across 2D materials, primarily graphene, have shown p Recent Review Articles
Porous thermoplastic polyurethane (TPU) membranes were produced by the electrospinning process. Two different TPUs and their blends were used to investigate the effects of material composition, solution concentration, and rheological properties on the microstructure, fiber diameter, and fiber diameter distribution of the electrospun membranes.
Inspired by these natural materials, colloidal self-assembly provides a convenient way to produce structures from simple building blocks with a variety of complex functions beyond those found in nature. In particular, colloid-based porous materials (CBPM) can be made from a wide variety of materials.
B.1 Radiative Properties of Porous Structures and Materials . Radiatively porous materials find applications in filament-wound structures, ablative coatings for spacecraft atmospheric entry, porous media combustion systems, packed and pebble beds for combustion and nuclear reactors, and others.
local densification of the porous material is important during nanoindentation: the intrinsic, elastic-plastic prop-erties (EP, P y) of the porous film cannot be derived directly from the classic formulae (3) and (4). The question then arises if it is possible to measure intrinsic mechanical properties of porous materials using nanoindentation.
Nov 11, 2010· Various porous materials such as sintered porous metals, cellular metals, and fibrous composites have been investigated for heat sink applications. 53) However, heat sinks using such porous materials have a high pressure drop due to the complex cooling fluid flow through the pores.
Aug 02, 2016· Any component purposefully containing pores, voids, holes is a porous material. They are typically but not solely, produced through powder metallurgy / sintering procedures which involve a particulate that is compacted inside a mold and then sinte...
A non-porous material is one that cannot absorb liquid or gas. Glass, metals and hard plastics are examples of non-porous materials. Porous materials have holes or pores which makes it easy for gas or liquids to pass through them. A sponge is an excellent example of a porous material.
@article{osti_96759, title = {Physicomechanical properties of porous materials of VT6 titanium alloy fibers}, author = {Kostornov, A.G. and Akhmedov, M.K.}, abstractNote = {Differences in the rates of occurrence in heating in individual fibers of VT6 alloy and in fiber specimens of such processes as phase transformations, change in stone composition, and stone growth and also the high
Aug 02, 2016· Any component purposefully containing pores, voids, holes is a porous material. They are typically but not solely, produced through powder metallurgy / sintering procedures which involve a particulate that is compacted inside a mold and then sinte...
A non-porous material is one that cannot absorb liquid or gas. Glass, metals and hard plastics are examples of non-porous materials. Porous materials have holes or pores which makes it easy for gas or liquids to pass through them. A sponge is an excellent example of a porous material.
@article{osti_96759, title = {Physicomechanical properties of porous materials of VT6 titanium alloy fibers}, author = {Kostornov, A.G. and Akhmedov, M.K.}, abstractNote = {Differences in the rates of occurrence in heating in individual fibers of VT6 alloy and in fiber specimens of such processes as phase transformations, change in stone composition, and stone growth and also the high
Jun 15, 2017· Porous materials such as natural sea sponge or artificial (special weave polyester styrofoam) absorb fluids quickly and maintain fluid absorption until the fluid either evaporates or is manipulated to reduce fluid content. Porous fabrics—such as c...
The general focus of the symposium was on porous materials that are being developed, at least in part, for structural applications. Theoretical aspects of the mechanical behavior of porous and cellular materials were discussed, as well as the specific mechanical properties of a wide variety of solid foam materials.
Because of this, they can fit through the structures found in Zeolites and Charcoal, making Procion Red a suitable substitute for a PAH to test the removal properties of each porous material. Conclusion. In this experiment we designed a test to figure the properties of magnetized/ unmagnetized zeolite compared to
Aug 12, 2014· Recent advances in material synthesis have helped in adapting the properties of porous structures to specific applications. The technical challenge to comprehend and predict the response of these materials when subjected to load has attracted the interest of engineers and materials scientists.
May 15, 2019· Machine learning predicts mechanical properties of porous materials . Machine learning can be used to predict the properties of a group of materials which, according to some, could be as important to the 21st century as plastics were to the 20th. We can predict what the best material would be for a given task
This study examines the acoustic properties of materials with complex micro-geometry containing partially open or dead-end (DE) porosity. One of these kinds of materials can be obtained from dissolving salt grains embedded in a solid metal matrix with the help of water. The solid matrix is obtained after the metal, in liquid form, has invaded the granular material formed by the salt particles
Physical Properties of Porous Clay Ceramic-Ware The focus of this study is on the physical properties of clay ceramic materials compatible for drinking water filtration. A multiparameter lognormal multivariate regression approach is proposed for assessing the combined effects of quantity of compositional constituent of