NbAl intelligent material through mechanical alloying and spark plasma sintering

Karuna Chinniah, Yan Sheng Kang, Akira Kawasaki

研究成果: Conference contribution

抄録

An intelligent material Nb-Al, expected to produce intermetallics phase instantaneously to stop crack development upon collision with sub-centimeter sized hypervelocity space debris, is researched. Intermetallics-free Nb-Al powders are produced through mechanical alloying (MA) and densification achieved through spark plasma sintering. Nb-Al powders are mechanically alloyed using planetary ball mill using agate and zirconia pot. Rotation speed and milling time is changed systematically to form intermetallics-free critical MA powder. A state of ultra fine intermetallics-free Nb-Al powder is produced. Intermetallics-free MA powder with fine Nb in Al matrix with most minute average particle size is utilized and sintering was carried out in vacuum with axial pressure increased up to 1.5GPa. The sintered compacts are then subjected to test such as XRD profiling, FE-SEM observation and mechanical properties testing such as hardness, etc.

本文言語English
ホスト出版物のタイトルEuro PM 2005
ホスト出版物のサブタイトルPowder Metallurgy Congress and Exhibition
出版社European Powder Metallurgy Association (EPMA)
ページ85-90
ページ数6
ISBN(印刷版)9781899072187
出版ステータスPublished - 2005 1 1
イベントEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2005 - Prague, Czech Republic
継続期間: 2005 10 22005 10 5

出版物シリーズ

名前Euro PM 2005: Powder Metallurgy Congress and Exhibition
2

Other

OtherEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2005
国/地域Czech Republic
CityPrague
Period05/10/205/10/5

ASJC Scopus subject areas

  • 材料力学
  • セラミックおよび複合材料
  • 材料化学
  • 金属および合金
  • 凝縮系物理学

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