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
    Mechanical milling assisted by electrical discharge (2002)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 419 (2002), S. 147-151 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mechanical milling is an effective technique for the preparation of fine metallic and ceramic powders and can also be used to drive a wide range of chemical reactions. Milling devices include planetary machines, attritors and vibrational mills; products include amorphous, nanocrystalline and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature00985
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The formation of ternary compound Fe3Mo3C by ball milling (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 4118-4122 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ball milling of Mo in nitrogen and ammonia gases has been studied. After heating, the formation of an intriguing ternary compound, Fe3Mo3C1−x, was observed as a result of Fe (and C) contamination from the milling apparatus. For a comparison, mechanical alloying of Fe–Mo–C powders with a stoichiometric composition of Fe3Mo3C was also performed and again an Fe–Mo–C alloy was obtained after milling. Thermal analysis shows a single transition peak for the formation of both the Fe3Mo3C phase in the latter case and also for Fe3Mo3C1−x formed as a result of contamination from the mill. The lattice parameter for the Fe3Mo3C1−x phase obtained by Mo-gas reaction is smaller than for the Fe3Mo3C phase obtained by mechanical alloying of stoichiometric Fe–Mo–C powders. It is suggested that, in the Fe3Mo3C1−x phase produced by milling of Mo in gases, a high concentration of C vacancies exists. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360705
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Low temperature synthesis of Al-AlN composites from a nanostructure made by controlled magneto-ball milling of Al in ammonia (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 4953-4955 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The formation of an AlN compound in ball milled Al powder in ammonia was studied. In this work a magneto-ball milling device with controlled ball movement was used. The end milling product was an Al based nanostructure. This product can be transformed into an AlN-Al nanocomposite upon heating below the melting point of Al. It was found that the level of unreacted Al is dependent on milling time. The maximum amount of AlN was 88.28 wt %. The structure of as-milled and annealed samples was investigated using x-ray diffractometry and transmission electron microscopy. Differential thermal analysis was performed on as-milled samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.355785
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Magnetic properties of Ti5Si3 contaminated by Fe during mechanical alloying processes : The 5th Joint MMM−Intermag Conference (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 6280-6282 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This is a first systematic report on the magnetic properties of the amorphous and nanocrystalline Fe-(Ti5Si3) system. Using electron microprobe, scanning electron microscopy and by application of ferromagnetic resonance and magnetization measurements it was found that during mechanical alloying iron is introduced to the milling product. In the amorphous state of the material only Fe3+ ions exist, all ferromagnetically coupled, but with a high level of exchange interaction fluctuations. During the annealing-crystallization and diffusion process take place. Thereafter in the crystalline state both Fe3+ and Fe2+ ions are present. The first are located on the surface of grains with established local magnetic moments. The second type, paramagnetic Fe2+, are located in the Ti5Si3 crystal structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349967
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The effect of chemical and mechanical treatment on the stability of Zr76Fe24 metallic glass (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 423-426 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We demonstrate that mechanical grinding and chemical etching dramatically reduce the thermal stability of the eutectic Zr76Fe24 metallic glasses. Using differential scanning calorimetry and x-ray diffractometry, it is shown that this effect is due to the activation of a surface crystallization process associated with out-diffusion of zirconium and subsequent formation of a Zr2Fe+αZr crystalline layer. The kinetics and bulk crystallization are analyzed in detail for the etched samples using the concept of the local value of the Avrami exponent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341446
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Structure and magnetic properties of aerosol synthesized barium ferrite particles : The 5th Joint MMM−Intermag Conference (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 5909-5911 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The aerosol synthesis technique has been employed to produce barium ferrite particles. X-ray and electron diffraction, scanning and transmission microscopy methods were used to find detailed information on crystallography, morphology and chemical composition of as prepared and annealed powders. A detailed study has been made of the correlation between magnetic hysteresis parameters and the inner structure of submicrometer ferrite particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350103
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Two-channel optical pyrometry of metals irradiated by picosecond laser pulses (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 3293-3297 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have used two-channel optical pyrometry to study the surface color temperature versus time profiles of aluminum and tungsten irradiated with 100 ps, 5 ns, and 60–70 ns duration pulses of Nd-glass laser in the fluence range of 0.5–15 J/cm2. We demonstrate that at fluences of several J/cm2 the temperatures of both materials can rise above 5000 K. The maximum observed cooling rates are 5×1010 K/s, two orders of magnitude less than the theoretical estimation. The importance of these results for the laser annealing experiments on metals and alloys is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.344123
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Formation of amorphous Fe-B alloys by mechanical alloying (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 58 (1991), S. 119-121 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a novel ball mill with controlled ball movement we have produced for the first time amorphous Fe50B50 and Fe40B60 alloys and nanocrystalline Fe80B20 and Fe66B34 alloys by mechanical alloying. The structural evolution of elemental powder mixtures is studied following milling and subsequent thermal treatment. Upon heating both amorphous and nanostructural mechanically alloyed Fe-B alloys transform into a mixture of equilibrium phases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.104974
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Formation of gallium nitride by a novel hot mechanical alloying process (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 2505-2507 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a novel ball mill with controlled ball movement and operating at elevated temperature, gallium nitride powder has been synthetized by simple milling of gallium metal in a dry ammonia atmosphere. The structural changes resulting from milling were studied by x-ray diffractometry and transmission electron microscopy. The elemental composition of the as-milled product was analyzed using Rutherford backscattering spectroscopy. A nanostructural phase was obtained following milling, which transforms into polycrystalline GaN of the wurtzite-type structure upon further thermal treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.110463
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Formation of titanium and zirconium nitrides by mechanical alloying (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 59 (1991), S. 1568-1569 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a novel ball mill with controlled ball movement, titanium and zirconium nitrides were synthesized by simple milling, at room temperature, of titanium and zirconium elemental powders in molecular nitrogen atmosphere. The structural evolution during milling is studied using x-ray diffractometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.106285
    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...