Library

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
    Solid-State NMR Studies of Self-Assembled Monolayers (1995)
    s.l. : American Chemical Society
    Langmuir 11 (1995), S. 1860-1863 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00006a007
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Aided Sintering Behaviour of Nano Hydroxyapatite Particles (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 121-123 (Mar. 2007), p. 89-92 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: To avoid microcrack formation caused by the addition of heterogeneous sintering aids, nanohydroxyapatite powder was prepared by precipitation method and doped into commercialhydroxyapatite powders as homogeneous sintering aid. Gelcasting method was used to prepare thesehydroxyapatite green bodies. Densification of the blended powder was performed by pressurelesssintering in air atmosphere at the range 1100℃ to 1400℃ for 2h, with a step size of 50℃. Theresults showed that the nano particle can greatly improve the densification process of the greenbodies, and at 1300℃, which is the highest sintering temperature for hydroxyapatite withoutdecomposition in the air atmosphere, the relative sintering densities of the doped green bodies and theones without doping were 93.99% and 83.13% respectively
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.121-123.89.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Microstructure Model for Finite Element Analysis of 4-Step 3-D Rectangular Braided Composites under Ballistic Impact (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 485-488 
    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: This paper presents a real microstructure model which has the same fiber volume fraction andtows’ spatial configuration with 3D rectangular composites to simulate the ballistic impact damage ofthe composites struck by steel projectile. The commercial available FEM code of Ls-Dyna wasemployed to calculate the interaction between the composite targets and steel projectile. From thecomparison of residual velocities between simulation and experiment, it is proven the microstructuremodel can simulate the ballistic penetration with higher precision than the continuum model. Theacceleration vs. time curve reveals the complicated interaction between composite and projectile inballistic penetration. The prominent advantage of the microstructure model is that it can simulate thelocal damage mode of the composites at real microstructure level and obtain vivid simulating results
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.485.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Effects of Acidic Amino Acids on Hydroxyapatite Morphology (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 2096-2099 
    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: Hydroxyapatite nanoparticles were synthesized in the presence of two kinds of acidic aminoacids in order to investigate the effects of acidic amino acids on the morphology of hydroxyapatiteobtained by homogeneous precipitation and hydrothermal treating. The results of X-ray diffractionanalysis and microphotographs of transmission electron microscope showed that the morphology ofhydroxyapatite nanoparticles changed significantly only with aspartic acid. Hydroxyapatite synthesizedwith aspartic acid showed smooth flake-like morphology at pH= 11 and flake-like morphology withstripes at pH= 8. However, hydroxyapatite synthesized in the present of glutamic acid showed rod-likemorphology at both pH values. Variation in the morphology of nanoparticles could be consistent with thedifference in the affinity of amino acids binding at the hydroxyapatite crystal surface. The adsorptionprocess was revealed by computer simulation of molecular mechanics using energy minimizing method
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2096.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Study On the Damage Evolution Equation of Rockburst (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 663-668 
    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: This paper introduces the principle of minimum energy dissipation and its generalprocedures to establish development equation of internal variable. With the accepted viewpoint thatthe damage is only mechanics of energy dissipation during the rockburst and utilizing the totalstrength criterion based on released strain energy, the general damage evolution equation is deduced.Compared with the traditional research method of damage evolution equation, this method hasuniversal and objective characteristics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.663.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Elastic-Plastic Mechanics Analysis on Stability of Coal Pillar (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 1123-1128 
    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: Because it is very important to study the coal pillar stability, a lot of methods to do this havebeen proposed. But most of those methods do not consider the nature of coal material and only studythe coal pillar that is level. To solve this problem suitably, here a new method is proposed. In thismethod, the plastic softening nature of coal material is considered. And also, the coal seam pitch isconsidered in our analysis. Based on real deformation of coal pillar and the previous study, thelimiting equilibrium method is applied. At last, the rationality of our method is verified through a stripmining engineering example. And the results show that, the computing results of our method arecoincided with measuring results very well and our method can be applied in real engineering practicevery well
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.1123.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Development of a New Plate Polishing Technique with an Instantaneous Tiny-Grinding Wheel Cluster Based on Magnetorheological Effect (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 53-54 (July 2008), p. 155-160 
    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: A new plate polishing technique with an instantaneous tiny-grinding wheel cluster basedon the magnetorheological (MR) effect is presented in this paper, and some experiments wereconducted to prove its effectiveness and applicability. Under certain experimental condition, thematerial removal rate was improved by a factor of 20.84% as compared with the conventionalpolishing methods with dissociative abrasive particles, while the surface roughness of the workpiecewas not obviously increased. Furthermore, the composite of the MR fluid was optimized to obtainthe best polishing performance. On the basis of the experimental results, the material removal modelof the new plate polishing technique was presented
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.53-54.155.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Comparative Study of Copper Diffusion in Plasma Treated Low-k Dielectric Thin Film Using XPS and SIMS (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 29-30 (Nov. 2007), p. 347-350 
    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: Low-k dielectric improves the switching speed by reducing the parasitic capacitance inintegrated circuits. However it suffers the problem of copper diffusion. Forming gas (H2 + N2)plasma treatment on the surface of HSG-7000 low-k dielectric thin film has demonstrated toimprove copper diffusion resistance. Two techniques using X-ray Photoelectron Spectroscopy(XPS) and Secondary Ion Mass Spectroscopy (SIMS) have been used to examine the copperdiffusion on this thin film. A thin layer of 10 nm with C-N bonds near the HSG-7000 surface werebelieved to be created by the plasma treatment and confirmed with XPS and SIMS and acts asbarrier
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.347.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Micro- /Nano-Crystal Aluminized ODS Coatings (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 522-523 (Aug. 2006), p. 323-330 
    Details
    ISSN: 1662-9752
    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: A novel technique has been developed to prepare micro-/nano-crystal aluminized ODScoatings on stainless steel and nickel-base superalloy. In this technique, the pack aluminizing iscombined with the repeated ball impact. Pure Al powder is mixed with 1wt% Y2O3 powder by ballmilling. The ultrafine Y2O3 powder is well dispersed in Al particles. The modified Al particles arewelded to the surface of metals by ball impact, causing the refinement of coarse grains andacceleration of atomic diffusion. Micro-/nano-crystal alloy layer with Y2O3 grows outward at amuch low temperature (below 600°C) and in short treatment duration, compared with conventionalpack aluminizing. The effects of processing temperature and duration on formation of the coatingshave been analyzed. The microstructure of the coatings is studied using the methods of SEM, AMF,EDS, XRF and XRD. The results indicate that the aluminized ODS coatings appear to be dense,homogeneous, micro-/nano-crystal structure, and consist mainly of Al-rich phases, such as Fe2Al5,FeAl3 NiAl3 and7 CrAl5. High temperature oxidation tests show that the coatings enhance theoxidation resistance
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.522-523.323.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    A Novel Superfine Machining Technology Based on the Magnetorheological Effect of Abrasive Slurry (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 532-533 (Dec. 2006), p. 145-148 
    Details
    ISSN: 1662-9752
    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: Based on the magnetorheological (MR) effect of abrasive slurry, this paper presents aninnovative superfine machining method. In this technique, the particle-dispersed MR fluid is used as aspecial instantaneous bond to cohere abrasive particles and magnetic particles so as to form adynamical tiny-grinding wheel. This tiny-grinding wheel can be used to polish the surface of brittlematerials in millimeter or sub-millimeter scale. The characteristics of the machined glass surfacesexamined by the scanning electron microscope (SEM) and the Talysurf roughness tester confirmedthe effectiveness of the finishing technique. The machined surface with convex center and concavefringe demonstrates that the material removal process is dominated by the synergy of the appliedpressure and the relative velocity between the abrasives and workpiece. In the case of glass finishing,the mode of material removal is found to be plastic, and controlled by the abrasive-wear mechanism
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.145.pdf
    Library Location Call Number Volume/Issue/Year 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...