Development of a gas injection/specimen heating holder for use with transmission electron microscope.
A new gas injection/specimen heating holder is developed for the purpose of in situ observation of gas reaction of materials at high temperatures in a transmission electron microscope at near-atomic resolution. A fine tungsten wire is employed as a heating element of the holder and a battery is used as the power source. Gas was injected onto specimens in the form of particles lying on the heating element via a nozzle. The maximum pressure near specimens was middle of 10(-2) Pa, while the pressure in the electron-gun chamber was kept to 2 x 10(-4) Pa. This gas injection/specimen heating holder was applied to observe solid-gas reactions. The reactions observed include oxidation of pure In into In2O3, reduction of SiO2 into Si and re-oxidation of Si into SiO2.
Hitachi High Technologies Corporation Hitachinaka Ibaraki 312-0057, Japan. kamino-takeo@naka.hitachi-hitec.com
Takeo
T
Kamino
Toshie
T
Yaguchi
Mitsuru
M
Konno
Akira
A
Watabe
Tomotaka
T
Marukawa
Takayuki
T
Mima
Kotaro
K
Kuroda
Hiroyasu
H
Saka
Shigeo
S
Arai
Hiroshi
H
Makino
Yoshinao
Y
Suzuki
Keisuke
K
Kishita