Hidrojen depolama amaciyla magnezyum tozlarinin öǧütülmesinde katki maddelerinin etkisi

Translated title of the contribution: Hydrogen storage in mechanically alloyed magnesium powders: Effects of additives on milling

Murat Güvendiren, H. Emrah Ünalan, Tayfur Öztürk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mechanical alloying is becoming quite common as a method of improving the hydrogen storage properties of metal powders. This is particularly important in magnesium where the sorption, i.e. absorption and desorption rate is quite sluggish. So to imrove the rate to values suitable for practical applications, an efficient method of structural refinement is necessary. In this study various additives are used to aid milling of magnesium powders. Milling is carried out with an attritor, addtives are on a constant volume basis, (5 vol%). Additives investigated in this work, namely SiC, Al 2O 3, V, graphite are chosen so as to cover a wide hardness range. Structural refinement after milling are studied both metallographically and in terms of X-ray profile analysis. It is concluded that for effiecient structural refinement the additive should be chosen not on the basis of its hardness, but rather whether or not it is preserved with an acceptable size during milling. Thus of the addtives investigated in this work graphite and Al 2O 3 are found to be most effective.

Translated title of the contributionHydrogen storage in mechanically alloyed magnesium powders: Effects of additives on milling
Original languageTurkish
Title of host publicationProceedings of the 3rd International Powder Metallurgy Conference
EditorsS. Saritas, I. Uslan, Y. Usta
Pages876-885
Number of pages10
StatePublished - Dec 1 2002
Externally publishedYes
EventProceedings of the 3rd International Powder Metallurgy Conference - Ankara, Turkey
Duration: Sep 4 2002Sep 8 2002

Publication series

NameProceedings of the 3rd International Powder Metallurgy Conference

Other

OtherProceedings of the 3rd International Powder Metallurgy Conference
CountryTurkey
CityAnkara
Period9/4/029/8/02

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Keywords

  • Attritor Milling
  • Hydrogen Storage
  • Magnesium Hidride
  • Mechanical Alloying
  • X-ray Profile Analysis

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