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Mechanical and Impact Properties of Untreated Jute Fabric Reinforced Polyester Laminates Compared With Different Ε-Glass Fibre Reinforced Laminates

Carlo Santulli2000-12-01Science and Engineering of Composite Materials

Article Mechanical and Impact Properties of Untreated Jute Fabric Reinforced Polyester Laminates Compared With Different Ε-Glass Fibre Reinforced Laminates was published on December 1, 2000 in the journal Science and Engineering of Composite Materials (volume 9, issue 4).

Mechanical Engineering and Vibrations ResearchMechanical Behavior of CompositesNatural Fiber Reinforced Composites

Material’s Volumetric-Flow Rate (MVR) as a Unification Parameter in Asphalt Rheology and Quality Control / Quality Assurance Tool for High Temperature Performance Grading

Shenoy Aroon2000-12-01Applied Rheology

Rheological data of unmodified and polymer-modified asphalts are conventionally obtained from dynamic mechanical characterization and expressed in terms of sets of curves showing the variation of viscoelastic properties with frequency. Using the conventional melt flow indexer, the material’s volumetric-flow rate MVR (…

Recycling of the Granite Quarries and Municipal Incinerator Wastes for the Processing of New Materials as Porcelainized Stoneware

M. S. Hernández-Crespo、J. M. Rincón2000-12-01Materiales de Construccion

In the 1980s started in the ceramic sector the material conception of porcelainized stoneware, a product with versatile and modern characteristics similar to those of the natural stone, depicting improved properties to the marble and granite. Porcelanized stoneware is a compact ceramic material, very hard and homogene…

Transient Measurements in Rate Controlled Rheometers: A New Method of Standardization

Talbi-Boucenna Imane、Quemada Daniel2000-12-01Applied Rheology

Rheological measurements in response to transient shear rate exhibit coupling effects between mechanical characteristics of rheometer and unsteady (thixotropic and viscoelastic) properties of fluid. This coupling is observed if the characteristic times of the latter lie in the range of those associated to mechanical p…

Evaluation of the penetration of restoration materials in stone. A new method

J. Rodríguez-Gordillo、J. A. Durán-Suárez、A. García-Casco2000-12-01Materiales de Construccion

We have used the measurements of the water-stone contact angle on the surface of sections of biocalcarenite samples to evaluate the penetration of organic and silico-organic restoration products in this rock. The method has been found to be effective and precise, allowing us to distinguish the depth of the zone with w…

Strong Mechanoluminescence from UV-Irradiated Spinels of ZnGa2O4:Mn and MgGa2O4:Mn

H. Matsui、Chao‐Nan Xu、Morito Akiyama 等 4 位作者2000-12-01Japanese Journal of Applied Physics

The mechanoluminescence (ML) from spinels of MgAl 2 O 4 :Mn (MAO:Mn), MgGa 2 O 4 :Mn (MGO:Mn) and ZnGa 2 O 4 :Mn (ZGO:Mn) has been investigated. It was found that the MGO:Mn and ZGO:Mn gave a strong ML response and a long-lasting phosphorescence (LLP). On the contrary, MAO:Mn exhibited very weak ML and no LLP. The hig…

Microwave Dielectric Ceramics SynthesisLuminescence Properties of Advanced MaterialsGlass properties and applications

Thermoelectric Properties of Bi2.3-xPbxSr2.6Co2Oy Single Crystals

Takayuki Itoh、Ichiro Terasaki2000-12-01Japanese Journal of Applied Physics

A set of single crystals of the layered cobaltite Bi 2.3- x Pb x Sr 2.6 Co 2 O y (0 ≤ x ≤0.44) were prepared by a flux technique. The resistivity ρ and the thermopower S along the in-plane direction were measured, and the thermoelectric properties were compared with those of other oxides. The Pb substitution causes a…

Advanced Thermoelectric Materials and DevicesPhysics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materials

First-principles study of ferroelectric and antiferrodistortive instabilities in tetragonalSrTiO3

Na Sai、David Vanderbilt2000-12-01Physical review. B, Condensed matter

We carry out first-principles density-functional calculations of the antiferrodistortive (AFD) and ferroelectric (FE) soft-mode instabilities in tetragonal ${\mathrm{SrTiO}}_{3},$ with the structural degrees of freedom treated in a classical, zero-temperature framework. In particular, we use frozen-phonon calculations…

Ferroelectric and Piezoelectric MaterialsElectronic and Structural Properties of OxidesMultiferroics and related materials

Towards better integrators for dissipative particle dynamics simulations

G. Besold、Ilpo Vattulainen、Mikko Karttunen 等 4 位作者2000-12-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Coarse-grained models that preserve hydrodynamics provide a natural approach to study collective properties of soft-matter systems. Here, we demonstrate that commonly used integration schemes in dissipative particle dynamics give rise to pronounced artifacts in physical quantities such as the compressibility and the d…

Material Dynamics and PropertiesBlock Copolymer Self-AssemblyTheoretical and Computational Physics

A Novel Iron-Based Catalyst for the Biphasic Oxidation of Benzene to Phenol with Hydrogen Peroxide

Daniele Bianchi、Rossella Bortolo、Roberto Tassinari 等 5 位作者2000-12-01Angewandte Chemie International Edition

Improved selectivity and decreased formation of overoxygenated byproducts were achieved by using a MeCN/H2O biphasic system for the iron-catalyzed oxidation of benzene to phenol with H2O2. Under optimized reaction conditions with 5-carboxy-2-methylpyrazine-N-oxide as the ligand for iron [Eq. (1)] a benzene conversion…

Catalysis and Oxidation ReactionsAdvanced oxidation water treatmentCatalytic Processes in Materials Science

Formation of Mixed Fibrils Demonstrates the Generic Nature and Potential Utility of Amyloid Nanostructures

Cait E. MacPhee、Christopher M. Dobson2000-12-01Journal of the American Chemical Society

The aggregation of proteins and peptides in the form of stable and highly ordered amyloid fibrils is most commonly associated with pathological conditions such as Alzheimer's disease and the transmissible spongiform encephalopathies. The involvement of only a handful of proteins in amyloid formation in vivo has common…

Supramolecular Self-Assembly in MaterialsProtein Structure and DynamicsAlzheimer's disease research and treatments