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  • 1
    Electronic Resource
    Electronic Resource
    Oxiranylidene-2,2-bis(phosphonate): Unambiguous Synthesis, Hydrolysis to 1,2-Dihydroxyethylidene-1,1-bis(phosphonate), and Identification as the Primary Product from Mild Na2WO4/H2O2 Oxidation of Ethenylidene-1,1-bis(phosphonate) (1995)
    s.l. : American Chemical Society
    The @journal of organic chemistry 60 (1995), S. 7080-7081 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00127a003
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of matrix toughness and dispersed elastomer phase on the brittle-ductile transition in PP/HDPE/SBS blends (1995)
    Springer
    Journal of polymer research 2 (1995), S. 257-261 
    Details
    ISSN: 1572-8935
    Keywords: PP blends ; Toughenning ; Brittle-Ductile transition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract In this paper the sbrittle-ductile transition of polypropylene, high density polyethylene, and a styrene-butadiene-styrene triblock copolymer (PP/HDPE/SBS) ternary blends is investigated for fixed compositions and prepared under various conditions. The morphology of the SBS dispersed phase particles and impact strength of the PP ternary blends is closely related to the processing conditions. There is a sharp Brittle-Ductile transition for the ternary blends when interparticle distance T becomes less than the critical interparticle distance Tc. Both the impact strength in general and more specifically, Tc depend upon the toughness of the PP/HDPE composite matrix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01492778
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  • 3
    Electronic Resource
    Electronic Resource
    Wear Mechanism of Ti(C, N)-Based Cermet Cutting Tools in the Machining of Normalized Medium Carbon Steel AISI1045 (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 792-795 
    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: Ti(C, N)-based cermet cutting tools were prepared by vacuum sintering and tested in drymachining of normalized medium carbon steel (AISI1045) at various combinations of cutting speed(Vc), feed rate (f), and depth of cut (ap). And the wear mechanism was investigated in detail usingscanning electron microscopy (SEM) and electron-probe microanalysis (EPMA). Comparing to thecemented carbide YT15 and cermet TN20, the newly fabricated cermet tools exhibited betterperformance and higher wear resistance. For Ti(C, N)-based cermet tools, the wear mechanism waspredominantly controlled by the flank wear under all cutting condition. It was found that theremoval of the ceramic grain and abrasive wear were the main source of tools failure. In addition,adhesion and oxidation were also observed
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.792.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation and Microwave Absorbing Property of Microwave Absorbers with FSS Embedded in Multilayer Composites (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 501-504 
    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, we present the experimental results of microwave absorbing materials witha frequency-selective surface (FSS) embedded in the multilayer structural composites. Microwaveabsorbing materials with the FSS pattern embedded in multilayer structural epoxy resin matrixcomposites were fabricated. The effects of the FSS on multilayer structural composites formicrowave absorbing material design have been investigated. Comparisons were made with themicrowave absorptions of the multilayer composites with FSSs of different positions in composites.The microwave absorption properties of the multiplayer composites samples with FSSs are higherthan those of the samples without FSSs. The experiment results show that the incorporation of aFSS can effectively change the reflection property of the composite
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.501.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Microstructure and Mechanical Property of Carbon Nanotube and Continuous Carbon Fiber Reinforced Epoxy Resin Matrix Composites (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 517-520 
    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: The carbon nanotubes (CNTs) were prepared by catalytic decompose of benzene usingfloating transition method at 1100-1200°C. Benzene was used as carbon source and ferrocene ascatalyst with thiophene. The carbon nanotubes are straight with diameter 20-50 nm, internaldiameter 10-30 nm and length 50-1000 μm. The carbon nanotube and continuous carbon fiber(T300) reinforced unidirectional epoxy resin matrix composites was fabricated. The volune fractionof continuous carbon fiber (first filler) in the composites without second filler (carbon nanotube)was 60%. The mechanical properties of the composites were investigated under bending, shear, andimpact loading. The flexural strength and modulus of the composites increased firstly and thendecreased with the increasing of carbon nanotube contents in epoxy resin matrix. The flexuralstrength of the composites reached the maximum value of 1780 MPa when the weight percent ofcarbon nanotube in epoxy resin matrix was 3%
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.517.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Formation Mechanism and Microwave Permittivity of Carbon Nanotubes Filled with Metallic Silver Nanowires (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 685-688 
    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: The filling of multi-walled carbon nanotubes (MWNTs) with metallic silver nanowiresvia wet chemistry method was investigated. The carbon nanotubes were filled with long continuoussilver nanowires. The carbon nanotubes were almost opened and cut after being treated withconcentrated nitric acid. Silver nitrate solution filled carbon nanotubes by capillarity. Carbonnanotubes were filled with silver nanowires after calcinations by hydrogen. The diameters of silvernanowires were in the range of 20-40nm, and lengths of 100nm-10μm. We studied themicromorphology of the silver nanowires filled in carbon nanotubes by transmission electronmicroscopy (TEM) and X-ray diffraction (XRD). Based on the experimental results, a formationmechanism of the Ag nanowire-filled carbon nanotubes was proposed. And the microwavepermittivity of the carbon nanotubes filled with metallic silver nanowires was measured in thefrequency range from 2 GHz to 18 GHz. The loss tangent of the carbon nanotubes filled withmetallic silver nanowires is high. So the carbon nanotubes filled with metallic silver nanowireswould be a good candidate for microwave absorbent
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.685.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Electrical Resistance Response of Carbon Nanotube (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 809-812 
    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: Thin films of poly(methyl methacrylate) (PMMA)，poly(vinyl acetate) (PVAc) andcarbon nanotube composites were produced by different coating methods. The best way to producethe carbon nanotube / PMMA / PVAc composite film with conductive network is dispersing carbonnanotubes in PMMA and PVAc by ultrasonic and by solution casting. Electrical resistanceresponses of carbon nanotube / PMMA / PVAc composite sensors against various organic vapors atlow concentrations are investigated. The experimental results indicate that the composites have highselectivity to various organic vapors at the same concentration. In addition, the electric resistanceresponse of the composites against organic vapors takes place in step with their vapor adsorptionprocedure. Compatible blends of poly(methyl methacrylate) and poly(vinyl acetate) would be agood candidate to produce a series of electrically conducting carbon nanotubes composite filmwhose resistance is sensitive to the nature and concentration of an analyte in the vapor phase. Theresults indicate that the carbon nanotube / PMMA / PAVc composite film can be used as a novelorganic vapor sensor to detect, quantify and discriminate various organic vapors
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.809.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Microwave Permittivity and Permeability of Ni-Coated Carbon Nanotube (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 681-684 
    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
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.681.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Preparation of Carbon Nanotube Reinforced Epoxy Resin Coating and its Microwave Characteristics (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 677-680 
    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: The carbon nanotubes were prepared by catalytic decompose of benzene using floatingtransition method at 1100~1200℃. Benzene was used as carbon source and iron as catalyst withsulfur. The carbon nanotubes are straight with diameter 30~80nm, internal diameter 10~50nm andlength 50~100μm. The carbon nanotubes and epoxy resin were sufficiently mixed. The mixturewas smeared on to a pure aluminum plate layer by layer until the thickness of the composite layerreached 1.0 mm. The coating resin was cured by heating under infrared radiation. Complexpermittivity, permeability and microwave reflectivity of carbon nanotubes reinforced epoxy resincoating had been investigated at the frequency ranges of 8.2~12.4GHz and 2~18GHz respectively.The real part (ε′) of complex permittivity of this coating ranges from 14.87 to 13.86, and theimaginary part (ε″), from 6.42 to 5.87, the loss tangent tgδε (ε″/ε′), from 0.42 to 0.45. The real part(μ′) of complex permeability of this coating ranges from 1.02 to 1.14, and the imaginary part (μ″),from 0.08 to 0.11, the loss tangent tgδμ (μ″/μ′), from 0.06 to 0.11. The maximum absorbing peak ofthe carbon nanotube reinforced epoxy resin coating is 22.89 dB at 11.40GHz. The band width(R〈-10dB) of this coating with thickness of 1.0 mm is 3.0GHz, band width (R〈-5dB) is 4.7GHz atthe frequency range of 8~18GHz. This carbon nanotube reinforced epoxy resin coating would be agood candidate for microwave absorbing material
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.677.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Electrical Property of Carbon Nanotube/PMMA/PVAc Composite Film (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 555-558 
    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: The carbon nanotube/PMMA/PVAc composite film was prepared by solution casting.The carbon nanotube (CNT) and graphitized carbon nanotube (GCNT) were employed asconductive fillers in the composite films. The conductivity of the GCNT/PMMA/PVAc film isbetter than that of CNT/PMMA/PVAc film. The electrical percolation thresholds were at 5wt% and2wt% respectively in the CNT/PMMA/PVAc film and GCNT/PMMA/PVAc film. The volumeelectric resistivities of CNT/PMMA/PVAc and GCNT/PMMA/PVAc composite film are at0.044[removed info]⋅m and 0.007[removed info]⋅m respectively at 15wt% carbon nanotube. The significant difference ofresistivity for the both types of composite film was due to different structure and crystallinity ofCNT and GCNT
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.555.pdf
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