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lmpressum / Masthead
Influence of hydroxyis, carbonates and chiorides ions on the pitting corrosión of steel in concrete
The electrochemical process of steel corrosion in concrete are studied by simulating its liquid phase with synthetical solutions in a large range of hydroxyls, carbonates and chlorides ions.The steel specimen is either under or without an electrical polarization. The present analysis has made it possible to define a n…
Titelei
Baden-Baden: Rheologen im Gesprach / Rheologists talk shop
Neuheiten / Products
Macroscopical morphology of deterioration of the stone used in the cathedral whole of Granada/Spain
The main factors of deterioration that affect the Cathedral Whole of Granada are one of natural thermic origin due to the low temperatures during the winters and the higher thermic oscillations and those of anthropogenical origin: fundamentally the oxidation of metallic elements and atmospheric pollution due to burnt…
Patente / Patents
Extruder im Vergleich / Extruders compared
Rheologische Strömungen numerisch betrachtet / A numerical view of rheological flow
Probleme / Problems
Brevier/Brevier
Natural and artificial ageing for evaluating waterproofing treatments for marble
Exposure of samples to artificial ageing is commonly carried out to test the durability of natural and artificial stones and the effectiveness of products used for their conservation. Correlations between artificial and natural ageing, however, are not always well understood mainly because the former can only try to s…
Inhalt / Contents
Ticker / Ticker
Critical-point phonon frequencies of diamond
The phonon-dispersion curves derived from neutron-scattering experiments performed on diamond [J. Warren et al., Phys. Rev. 158, 805 (1967)] are not accurate enough to yield the exact frequencies of critical-point (CP) phonons and, thus, to provide a satisfactory interpretation of second-order optical spectra. A self-…
Physical Stabilization of the β → γ Transformation in Dicalcium Silicate
It has been shown that the monoclinic β ‐phase of dicalcium silicate (Ca 2 SiO 4 ) can be stabilized against transformation to the orthorhombic γ ‐phase by physical rather than chemical factors. Stabilization was studied in different types of microstructures fabricated under various processing conditions such as diffe…
Numerical treatment of progressive localization in relation to borehole stability
Abstract Results of large‐scale finite element computations are presented for the problem of borehole failure due to the high stresses at great depths. Rock is modelled by an extension of the Mohr–Coulomb flow theory of plasticity for material with Cosserat micro‐structure. The introduction of internal length (grain s…
Single-crystal X-ray structure study of synthetic pyrope almandine garnets at 100 and 293 K
The crystal structures of synthetic pyrope (Mg3AI2Si3012),almandine (FeAI2Si3012), and the solid-solution garnet compositions PY8o-Alm2o, PY6o-Alm4o, and PY2o-Alm8o have been refined in space group Ia1d from high-precision X-ray diffraction data with sin 0/>..> 0.4 A-I measured at 100 and 293 K. There is no indication…
XPS study of passive films formed on molybdenum‐implanted austenitic stainless steels
Abstract Austenitic stainless steels (Fe–19Cr–10Ni (at.%)) have been implanted with molybdenum ions (Mo + , 100 keV, 2.5 × 10 16 atoms cm −2 ). The implanted material has been characterized by XPS and RBS. The implanted region has a thickness of ∼1000 Å with a maximum molybdenum concentration of ∼9 at.% Mo located at…