Abstract
FeTi clusters with a diameter of less than 10 nm and covered with a graphitic layer have been preferentially produced in an H2 gas atmosphere at pressures of 10 and 26.6 kPa by the simultaneous evaporation of Fe and Ti wires from a concave carbon boat. To compare this result with cluster formation in an inert gas atmosphere, the result for an Ar gas pressure of 10 kPa is also discussed. The formation of disordered FeNi clusters predominately took place in an H2 gas atmosphere.
Highlights
A new production method for the formation of FeTi clusters of less than 10 nm diameter covered with a carbon layer has been reported
The electron diffraction (ED) pattern shows the formation of a mixture of Fe, Ti, FeTi, and TiC phases
Each particle was covered with a carbon layer
Summary
Chihiro Kaito,1 Akihito Kumamoto,1 Ryoichi Ono,1 Yoshio Saito,2 and Shigeru Morikawa3 1 Department of Physics, Fuel Cell Center, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan 2 Sai-Institute of Physics, Kimashimizu Nagaike 47-1, Kyoto 610-0112, Japan 3 KRI, Inc., Kyoto Research Park, 134 Chudoji Minami-machi, Shimogyo-ku, Kyoto 600-8813, Japan
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