ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Crosslinkable polar siloxane copolymers for ion detection devices (1994)
    Weinheim : Wiley-Blackwell
    Advanced Materials 6 (1994), S. 944-947 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19940061209
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Einfluß von Schwefel auf die Aufkohlung einer CrNiFe-Legierung bei hohen Temperaturen (1979)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 30 (1979), S. 794-799 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Influence of sulphur on the carburization of a CrNiFe-alloy at high temperaturesGravimetric investigations at 900, 1000 and 1100°C have been performed on the corrosion of Incoloy 800 (X 40 CrNi 21 32) in CH4-H2-H2S mixtures at the carbon activity aC = 1 and with varied ratios: 10-6 〈 H2S/H2 〈 10-3. The carburization and internal carbide formation is increasingly retarded with increasing ratio H2S/H2 up to the stability limit of CrS, where sulfidation starts and carburization begins anew. The retardation of the carburization is caused by adsorbed sulphur, blocking the metallic surface for the carbon transfer from the gas phase. Selenium and tellurium also are inhibitors for the carburization. With the optimum H2S/H2-ratio experiments have been performed at aC 〉 1, in which the graphite formation on the metallic surface was suppressed effectively. The application of these effects for inhibiting carburization is discussed.
    Notes: In gravimetrischen Versuchen bei 900, 1000 und 1100°C wurde die Korrosion von Incoloy 800 (X 40 CrNi 21 32) in CH4-H2-H2S Gemischen bei der Kohlenstoffaktivität aC = 1 und variiertem H2S/H2-Verhältnis 10-6 〈 H2S/H2 〈 10-3 gemessen Mit steigendem Verhältnis H2S/H2 wird zunehmend die Aufkohlung und innere Carbidbildung unterdrückt, bis oberhalb der Stabilitätsgrenze des CrS Sulfidierung und erneut Aufkohlung einsetzt. Die Hemmung der Aufkohlung ist auf adsorbierten Schwefel zurückzuführen, der die metallische Oberfläche für die Kohlenstoffübertragung aus der Gasphase blockiert. Selen und Tellur haben ebenfalls eine inhibierende Wirkung auf die Aufkohlung. Bei optimaler Einstellung des H2S/H2-Verhältnisses wurden Versuche mit aC 〉 1 durchgeführt. Hierbei zeigte sich, daß der adsorbierte Schwefel auch wirkungsvoll die Graphitabscheidung unterdrückt. Die Anwendung dieser Effekte für die Inhibierung der Aufkohlung wird diskutiert.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19790301104
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Einflüsse von Legierungselementen auf die Korrosion und Wasserstoffaufnahme von Eisen in Schwefelsäure - Teil II: Korrosion und DeckschichtbildungHerrn Professor Dr. rer. nat. Hans-Jürgen Engell zum 60. Geburtstag gewidmet (1985)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 36 (1985), S. 447-454 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Effects of Alloying Elements on Corrosion and Hydrogen Uptake of Iron in Sulfuric Acid Part II: Corrosion and Formation of Surface LayersThe effects of C, S, P, Mn, Si, Cr, Ni, Sn and Cu on the formation of surface layer and hydrogen uptake of iron during corrosion in 1 M H2SO4/N2 were investigated using AES, XPS, SEM and electrochemical permeation techniques.Cu, Sn, P and C are enriched on the surface of iron during corrosion in H2SO4. Cu is enriched in the metallic form. P forms a phosphate and phosphide containing surface layer. Ni is not enriched. Cr is preferentially dissolved. Cu, Sn and Ni inhibit the dissolution of iron and thus decrease the hydrogen activity. S, P and Mn (MnS) increase the corrosion and hydrogen activity. Cr forms traps in iron which increase the hydrogen uptake.
    Notes: Die Einflüsse von C, S, P, Mn, Si, Cr, Ni, Sn und Cu auf Deckschichtbildung und Wasserstoffaufnahme bei Korrosion von Eisen in 1 M H2SO4/N2 wurden mit AES, XPS, REM sowie der elektrochemischen Permeationsmethode untersucht.Cu, Sn, P und C reichern sich bei Korrosion von Eisen in H2SO4 an der Oberfläche an. Cu bleibt metallisch liegen. P bildet eine phosphat-und phosphidhaltige Deckschicht. Ni reichert sich nicht an. Cr geht bevorzugt in Lösung. Cu, Sn und Ni hemmen die Eisenauflösung und erniedrigen die Wasserstoffaktivität. S, P und Mn (MnS) erhöhen die Korrosionsgeschwindigkeit und die Wasserstoffaktivität. Cr bildet Wasserstoffallen in Eisen, die die Wasserstoffaufnahme erhöhen.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19850361004
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Noble metal loaded block lonomers: micelle organization, adsorption of free chains and formation of thin films**This work was supported by the the Deutsche Forschungsgemeinschaft (SFB 239) and by a grant of the European Community (Human Capital and Mobility, Project: Synthetic Electronic Materials). One of us (AR) gratefully acknowledges support by the Stichting Technische Wetenschappen, Netherlands. (1995)
    Weinheim : Wiley-Blackwell
    Advanced Materials 7 (1995), S. 731-735 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19950070811
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Gold nanoparticles in micellar poly(styrene)-b-poly(ethylene oxide) films - size and interparticle distance control in monoparticulate filmsThis work was supported by the Deutsche Forschungsgemeinschaft (SFB 239). One of us (A.R.) gratefully acknowledges support by the Stichting Technische Wetenschappen. Netherlands. We are thankful for the help from the Abteilung Elektronenmikroskopie. Universität Ulm, in carrying out the electron microscopy measurements. (1996)
    Weinheim : Wiley-Blackwell
    Advanced Materials 8 (1996), S. 337-340 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19960080411
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Effects of phosphorus on the stability of the passive state of Fe and Fe-Ni base glasses (1988)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 39 (1988), S. 453-462 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Einfluß von Phosphor auf die Stabilität des passiven Zustands von metallischen Gläsern basierend auf Fe und Fe-NiFür metallische Gläser basierend auf Fe und Fe-Ni wurde der Einfluß einer Substitution von B durch P untersucht. Die elektrochemischen Messungen haben gezeigt, daß der Austausch von B gegen P die Bildung von Passivschichten begünstigt und deren passiven Bereich stabilisiert. Oberflächenanalytische Untersuchungen mittels AES ergaben, daß für die auf Fe-Ni basierenden Gläser die Hauptbestandteile der Passivschicht Eisenoxide, Phosphor-Sauerstoff Spezies (meistens Phosphate) und Boroxid waren, während Nickeloxid praktisch nicht auftrat. Bezüglich der Phosphorverbindungen in der Passivschicht auf dem metallischen Substrat konnte eine gewisse Ähnlichkeit festgestellt werden mit Phosphor, der auf einer (100) orientierten Fe Einkristalloberfläche durch Segregation bei erhöhter Probentemperatur angereichert und anschließend oxidiert worden war. Darüber hinaus lassen die Ergebnisse, in Übereinstimmung mit früheren Befunden für kristallines Fe, vermuten, daß Bestandteile des Elektrolyten in den Passivfilm auf dem glasartigen Substrat inkorporiert werden.
    Notes: The effects of substituting P for B in Fe base and Fe-Ni base glasses have been investigated. The electrochemical measurements have shown that a substitution of B by P increases the ability of the alloys to passivate and stability of their passive state. Surface analysis with AES revealed that for Fe-Ni base glasses the main constituents of the passive film were: iron oxides, phosphorus-oxygen species (mostly phosphates) and boron oxide whereas Ni oxides were depleted. There was a certain similarity between the Auger spectra for phosphorus in the passive film on the glassy substrate and for segregated, and subsequently oxidized, phosphorus on a (100) oriented Fe single crystal. The results suggest, moreover, in agreement with the previous findings for crystalline Fe that the electrolyte components are incorporated into the passivating film on glassy substrates.
    Additional Material: 23 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19880391003
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Hermetische Mikroelektronik-Verkapselungen in der Luft- und Raumfahrt zur Vermeidung von Korrosion (1993)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 44 (1993), S. 124-129 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion-resistant, hermetic microelectronic packages for aerospace applicationsCorrosion-resistant, high reliable aerospace electronics need expensive ceramic substrates, noble metal conductors and very clean stainless steel or ceramic packages. The requirements, material technologies, problems and more economical packages are described.
    Notes: Zur Vermeidung von Korrosionsschäden an Sicherheitselektroniken der Luft- und Raumfahrt sowie der Wehrtechnik werden vorzugsweise Keramik-Substrate und Edelmetall-Leiter sowie völlig feuchte- und salzfreie, hermetisch verschlossene Metall oder Keramikgehäuse verwendet. Die Anforderungen, Materialien, Technologien und Probleme der hermetischen Mikroelektronik-Verpackung wird im folgenden Aufsatz näher beschrieben werden.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19930440404
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Structural correlation between the columnar mesophase and the melt in poly(di-n-alkylsiloxane)s (1995)
    Weinheim : Wiley-Blackwell
    Macromolecular Rapid Communications 16 (1995), S. 107-112 
    Details
    ISSN: 1022-1336
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Phase transitions of poly(dialkylsiloxane)s substituted with propyl and butyl groups are reported based on X-ray diffractometry. The structure in the mesophase and in the melt of polymers with 2 to 10 carbon atoms in each side chain is compared. Both phases display a linear dependence of the molecular cross-section on the length of the alkyl group demonstrating their structural similarity. By means of differential scanning calorimetry it is shown that the temperature range of the mesophase remains practically unchanged in width as well as in absolute temperature for dibutyl up to dihexyl substituted polysiloxanes.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/marc.1995.030160202
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    A fast catalyst system for the ring-opening polymerization of cyclosiloxanes (1995)
    Weinheim : Wiley-Blackwell
    Macromolecular Rapid Communications 16 (1995), S. 449-453 
    Details
    ISSN: 1022-1336
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Methanol, in combination with a non-ionic phosphazene base, was used to initiate the polymerization of octamethylcyclotetrasiloxane. In bulk, an instantaneous and large increase in viscosity was observed upon addition of the initiator. In toluene solution, the equilibrium state was reached in approximately 1 min. In addition to its high polymerization rate, another advantage of this system, as compared with e.g. alkali metal hydroxides, is that it is homogeneous.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/marc.1995.030160606
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Solid-like states of a dendrimer liquid displayed by scanning force microscopy (1996)
    Weinheim : Wiley-Blackwell
    Macromolecular Rapid Communications 17 (1996), S. 283-297 
    Details
    ISSN: 1022-1336
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Adsorption and aggregation of carbosiloxane dendrimers on mica and pyrolytic graphite were investigated by scanning force microscopy (SFM). The aggregation process started from (i) single molecules which coagulated to (ii) clusters and (iii) fluid droplets followed by formation of (iv) a complete layer on the solid substrate. The molecules were displayed as a globular particle with a diameter of about 2.5 nm. Tapping SFM of the liquid was possible due to the fact that the dendrimer undergoes a transition to a viscoelastic state below the tapping frequency of about 360 kHz. Dynamic shear compliance experiments have shown a plateau of 5 · 10-7 Pa-1 around this frequency. Dendrimer droplets slowly spread into polygonal lamellae with a thickness of two molecular layers. The structures indicate a rather regular dense packing of the globular molecules.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/marc.1996.030170502
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...