Materials Literature
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These proceedings publish about eighty papers presented at the symposium. They are spread over four main subjects: binder properties, mixture properties, mix design and field topics. In addition the first chapter is devoted to the analyses of the RILEM TC (Technical Committee) inter-laboratory tests. Recommendations a…
Emulsions can improve the emollient property of lipsticks because of the introduction of hydrophilic ingredients. A lipophilic emulsifier (Span 60 or Span 80) or a hydrophilic emulsifier (Tween 20) was used to prepare emulsion lipsticks. The experimental results show that a hydrophilic emulsifier is as good as a lipop…
The fracture toughness and fatigue crack growth properties of carbon steel (S35C) were investigated in 1.1MPa argon gas and in high pressure hydrogen gas up to 9.9MPa at room temperature. The effect of hydrogen on the crack growth was discussed. The results obtained are as follows;(1) JIH value in hydrogen was smaller…
In this work, a model has been developed and characterized to account for the mechanical behavior of silicon dioxide and its effect on oxidation kinetics. Conservation of mass, momentum balance, and the transport equation along with appropriate boundary conditions have been formulated. The material law used for the ox…
Soil colour is an easily identifiable property that is invariably used as a parameter in all soil classification systems including the system used in South Africa. To test the hypothesis that soil colour is a reflection of the soil water regime, the physical, chemical, morphological and hydrological properties were me…
Three-dimensional structures of laterally aggregated bundles of collagen molecules, segment-long-spacing (SLS) crystallites, were imaged by atomic force microscopy (AFM) in atmosphere. The overall image of the type I collagen SLS in a height-amplified mode was semi-cylindrical, approximately 300 nm in length, with two…
N-Phenylmaleimide–styrene copolymers (PMS) and reactive N-phenylmaleimide–styrene–p-hydroxystyrene (HSt) terpolymers (PMSH) containing p-hydroxyphenyl groups were used to improve the toughness of bisphenol A diglycidyl ether epoxy resin cured with methyl hexahydrophthalic anhydride. PMS and PMSH were effective modifie…
In order to elucidate the nature and the structure of the elusive (OC)2Rh(Ph3SiO)2Rh(cod) (cod) = cycloocta-1,5-diene) complex, an important model compound for surface catalysis, (OC)2RhCl2Rh(cod) has been synthesized, and structurally characterized by ab initio X-ray powder diffraction. Crystals of (OC)2RhCl2Rh(cod)…
Twenty cardenolide glycosides were obtained from the leaves, wood and twigs of Thevetia ahouai (LINN.) A.DC., Apocynaceae. Among these, four compounds were determined to be new combinations of known aglycones and sugars, based on spectral and chemical evidence, and nine compounds were C-nor-D-homo cardenolide glycosid…
The chemical reaction mechanism and fine particle generation during atmospheric pressure chemical vapor deposition with the tetraethylorthosilicate/ozone system were studied experimentally and theoretically for a flow-type vertical-tube reactor. For the thermal decomposition of ozone, numerical simulations obtained us…
Ca. 2 and >5 molecules of hydrated water are removed from the inner sphere of Eu III on strongly and weakly acidic ion-exchange resins, respectively, showing the different mechanisms between ion-exchange reactions occurring on these two types of resins.
Summary This paper describes an investigation of the effects of tungsten on the precipitation behaviour of intermetallic compounds in the HAZ of duplex stainless steel and the mechanism of these effects to clarify the advantage of having some Mo replaced by W. Fine precipitates of sigma phase are observed in electron…
A method of radioactive waste concentration by membrane distillation is presented. Water flow through a hydrophobic membrane results from the temperature gradient between membrane surfaces which are in contact with two waste streams, warm and cold. A transport of water from the warm to the cold stream occurs and radio…
A correlation between the direction of the tetrad (double-double) effect in the lanthanide and actinide series and coordination number (CN) is discussed on experimental and theoretical grounds. Some examples of determining the CN values of the f-block elements in solution complexes using the tetrad effect are reviewed…
Spectra and lifetime measurements of the strongly mixed B″ 3 Π u and B 3 Σ u − states of 32 S 2 are presented covering v′ = 710 of the B state and v′ = 1221 of the B″ state. This extends our earlier work (M. E. Green and C. M. Western, J. Chem. Phys., 1996, 104, 848) to just above the first dissociation limit ( 3 P +…
Knitted fabric composites have certain advantages over woven composites, particularly in their ability to conform to complicated contours. As a consequence, however, they demonstrate inferior mechanical characteristics compared to woven materials as a direct result of the presence of bent fibers. Such a knitted fabric…
A colloidal route has been used to make zirconia tubes that were found to have excellent mechanical properties with strengths >500 MPa, surviving rapid heating conditions of 200°C/min to operating temperatures of 800°C. These tubes were put into a 200 tube solid oxide fuel cell(SOFC) reactor. The reactor was computer…
The accuracy of a stylus probe method in measuring localized magnetic properties of grain-oriented silicon steel sheet was investigated and its application was studied. The measuring error for the localized flux density was determined to be less than 1.7% for the load onto the stylus tip lighter than 300g when the yok…
It seems that there is a confusion of the critical exponent of conductivity of composites which is caused by the way of determining the percolation threshold. In this paper, the percolation behavior, the critical exponent of conductivity and the electrical conduction mechanism of carbon black-polyethylene composites a…
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