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  • 1
    Electronic Resource
    Electronic Resource
    Built-in carbon-13 intensity reference for solid-state analysis by magic-angle-spinning nuclear magnetic resonance spectrometry (1989)
    s.l. : American Chemical Society
    Analytical chemistry 61 (1989), S. 2579-2582 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00197a024
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Enhanced signal-to-noise ratios in the nuclear magnetic resonance analysis of solids, using large-sample magic-angle spinners (1990)
    s.l. : American Chemical Society
    Analytical chemistry 62 (1990), S. 633-638 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00205a019
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Reactive Compatibilization in Nano-Silica Filled Polypropylene Composites (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 121-123 (Mar. 2007), p. 1433-1436 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Nano-sized silica was pre-grafted with poly(glycidyl methacrylate) (PGMA) by solutionfree-radical polymerization. When these grafted silica particles were melt compounded withpolypropylene (PP), reactive compatibilization effect was perceived due to the chemical bondingbetween the PGMA and amine functionalized PP, which led to a significant increase of tensilestrength and notch impact strength of PP at rather low filler content. Accordingly, compatibility ofeach kind of the functionalized PP with grafted SiO2 was evaluated through investigating themechanical properties, crystallization behavior and rheological performance of the composites. Theresults show that the reactive compatibilization is capable of providing stronger interfacial adhesion
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.121-123.1433.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Multifarious Fracture Features of CuZrAlGd(Ag) Bulk Metallic Glasses (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 29-30 (Nov. 2007), p. 47-50 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Multifarious fracture features, such as coarse rive-like, micro holes, rugged and flatfracture surface, were systematically investigated in the monolithic Cu46-xZr45Al7Gd2Agx (x=0, 0.5)bulk metallic glasses. The fracture planes presented different angles with the loading direction.These fracture features were completely different from the typical fracture characteristics ofamorphous alloys, i.e. vein-pattern and fracturing approximately along the maximum shear stressplane. On the other hand, some tiny strips with about 50 nm intervals were also detected on the flatfracture plane. The preliminary discussions on the formation mechanisms of these exceptionalfeatures were presented
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.47.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Deformation Analysis of Shape Memory Alloy Using SEM Scanning Moiré Method (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 675-680 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, scanning electron moiré method is used to measure the mechanical behaviorof Ferro-based shape memory alloys(SMA). The moiré patterns are formed by the interferencebetween a 1000 lines/mm cross-type specimen grating (which is fabricated using electron beamlithography) and the scanning lines of Scanning Electron Microscope (SEM). When the specimen issubjected to uniform tension load at the room temperature, the unloading residual strain values in thedifferent regions under the same tensile load and the values in the same region under different tensileloads are compared respectively. The shape memory effect is also studied. From the experimentalresults, it can be concluded that the proposed moiré method is highly accurate to measure themechanical behavior of microscopic field
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.675.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Natural Fiber Reinforced Plastic Foams from Plant Oil-Based Resins (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 47-50 (June 2008), p. 149-152 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this work, a simple but effective approach was reported for preparing natural fiberreinforced plastic foams based on plant oil with excellent compressive performance andbiodegradability. Firstly, epoxidized soybean oil (ESO) was converted into its acrylate ester AESO,which can be free-radically copolymerized with reactive diluents like styrene to give thermosettingresins and their foam plastics. Then the bio-foam composites were produced using short sisal fiber asthe reinforcement. Effects of fiber loading, length and surface treatment on properties of the foamcomposites were investigated. It was found that exposure of the fibers to gas cells of the foam reducedthe effectiveness of interfacial effect, which is different from conventional bulk composites. As aresult, reinforcing ability of sisal fibers became a function of fiber length, loading, etc. Furthermore,the plastic foams based on plant oil resin were proved to be biodegradable in soil burial or in thepresence of fungi
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.149.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Nano-Grating Fabrication Technique (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 326-328 (Dec. 2006), p. 131-134 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, a novel nano-moiré grating fabrication technique was proposed fornanometer deformation measurement. The grating fabrication process was performed with the aidof Atomic Force Microscope (AFM) on the basis of micro-fabrication technique. On the analysis ofsome correlative factors of influencing grating line quality, some important experimentalparameters were optimized. In this study, some parallel and cross nano-gratings with frequencies offrom 10000lines/mm to 20000lines/mm were fabricated. The successful experimental resultsdemonstrate that the nano-grating fabrication technique is feasible and also indicated that thesenano-gratings with nano-moiré method can be applied to deformation measurement, which offers ananometer sensitivity and spatial resolution
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.326-328.131.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Synergistic Toughening Effects of Nano-CaCO〈sub〉3〈/sub〉 and POE on Ternary-Phase Polypropylene Nanocomposites (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 553-556 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Microstructure and mechanical properties of ternary PP/POE/nano-CaCO3 compositeswere investigated. Two different phase structures were obtained mainly by adjusting processingsequence. The one-step process led to the isolated distribution of elastomer and CaCO3 particles in PPmatrix, while the two-step one attained an encapsulated microstructure. In comparison with binaryblends of PP/POE or pure PP, toughness of the ternary composites was significantly increased.Meanwhile, their stiffness and tensile strength kept nearly unchanged or slightly enhanced, implyingthat there is a synergistic effect between nano-CaCO3 and POE components
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.553.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Melamine Resin-Walled Microcapsules Containing Styrene: Preparation and Characterization (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 47-50 (June 2008), p. 286-289 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: For purposes of developing a novel self-healing chemistry for polymer composites,melamine-formaldehyde (MF) resin-walled microcapsules containing styrene were prepared byin-situ polymerization in an oil-in-water emulsion. Chemical structure of the microcapsules wasidentified by Fourier-transform infrared spectroscopy (FTIR) and proton magnetic resonancespectroscopy (1H NMR), respectively. In addition, scanning electron microscope (SEM) and opticalmicroscope (OM) were used to investigate morphology and geometry of the product. The effects ofdispersion rate, weight ratio of core to shell and emulsifier concentration were carefully analyzed. Itwas found that poly(melamine-formaldehyde) (PMF) microcapsules containing styrene weresuccessfully synthesized through the proposed technical route, and their mean diameters fall in therange of 20~71 µm. The rough surface of the microcapsules is composed of agglomerated PMFnanoparticles. Both core content and size of the microcapsule can be adjusted by selecting differentprocessing parameters. The highest loading of styrene in the capsules is about 60% and the emulsifierwith lower molecular weight used to result in higher core content. In terms of differential scanningcalorimetry (DSC) and thermogravimetric analysis (TGA), thermal behavior and storage stability ofthe capsules were studied. The results indicated that the microcapsules can be handled up to 72 oC
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.286.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and Characterization of a Novel Epoxy with Improved Processability (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 47-50 (June 2008), p. 290-293 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: For purposes of developing a novel epoxy with low viscosity and high activity,N,N-diglycidyl-furfurlamine (DGFA) was successfully synthesized through a two-step reactionbetween 2-furfurylamine and epichlorohydrin involving ring-opening and ring-closure mechanisms.The product structure was verified by FTIR, 1H-NMR, 13C-NMR and elemental analysis,respectively. Its viscosity was found to be 0.02 Pa·s at 25oC. To understand its curing behavior,exothermic habit of the model mixture of DGFA and the curing agent methylhexahydrophthalicanhydride (MHHPA) at stoichiometric ratio of epoxy ring/anhydride of 1:0.8 was inspected withDSC. By changing the heating rates from 2.5 to 15oC/min, activation energy for consolidation of theresin was estimated to be 46.2 kJ/mol, which is much lower than the value involved in curing ofdiglycidyl ether of bisphenol A catalyzed by anhydride. Besides, thermal decomposition performanceof cured version of the newly synthesized epoxy was also examined. The predominant pyrolysis tookplace at around 330-390oC as a result of chain scission of epoxy. The cured resin possessescomparable mechanical properties as conventional diglycidyl ether of bisphenol A. Its flexuralstrength and modulus are 111MPa and 3.6GPa, respectively. Evidently, the resultant epoxy isprovided with balanced properties for practical applications
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.290.pdf
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