Materials Literature
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Lubricated squeezing flow (LSF) of a Herschel-Bulkley fluid between parallel disks under constant force was theoretically analyzed. An analytical expression for the fluid thickness as a function of time was obtained in terms of a hypergeometric function. The fluid thickness profiles in LSF were simulated for a range o…
The heat of hydration developed in reactions of mortars and concretes can be sensibly reduced using pozzolanic materials. However, the decrease of the heat of hydration is not directly proportional to the amount of cement substituted, because of the heat released in the pozzolanic reaction. With materials of high pozz…
Non altered straw and sugar cane bagasse ash (CPC, CBC) collected directly from the boilers in the sugar industry and from non-controlled burning in the open fields turned up to be a reasonably good pozzolana, which can be utilized for the manufacture of lime-pozzolana binders. This paper presents a detailed survey of…
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).
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 (…
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…
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…
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…
Neil G. Taylor, Steven Laurie, Simon R. Turner, Multiple Cellulose Synthase Catalytic Subunits Are Required for Cellulose Synthesis in Arabidopsis, The Plant Cell, Vol. 12, No. 12 (Dec., 2000), pp. 2529-2539
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…