title: In-situ TEM studies of the sintering behavior of copper nanoparticles covered by biopolymer nanoskin.
abstract: Sintering behavior of copper nanoparticles with a protective layer of gelatin synthesized by wet-chemical process with an average diameter of 45 nm has been observed using in-situ transmission electron microscopy (TEM). Copper nanoparticles were sublimated without sintering at about 925 degrees C at 2.0 x 10(-)(5) Pa, and carbonized gelatin remained and retained the shape of the initial layer of nanoparticles. Copper nanoparticles were sintered without sublimation at about 250 degrees C with between 1.0 x 10(-)(4) and 6.0 x 10(-)(4) Pa of oxygen gas flow. It was found that the surface of the sintered copper was covered by a gelatin layer.
authors.affiliation: Department of Quantum Engineering, Nagoya University, Nagoya, Japan. k-ida@iskweb.co.jp
authors.forename: Kiyonobu
authors.initials: K
authors.lastname: Ida
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Sugiyama
authors.forename: Yuki
authors.initials: Y
authors.lastname: Chujyo
authors.forename: Masanori
authors.initials: M
authors.lastname: Tomonari
authors.forename: Tomoharu
authors.initials: T
authors.lastname: Tokunaga
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Sasaki
authors.forename: Kotaro
authors.initials: K
authors.lastname: Kuroda