@article{oai:kanazawa-u.repo.nii.ac.jp:00008107, author = {Tanaka, Yasunori and Nagumo, Takeo and Sakai, H. and Uesugi, Yoshihiko and Sakai, Y. and Nakamura, K.}, issue = {26}, journal = {Journal of Physics D: Applied Physics}, month = {Jan}, note = {Nanoparticle synthesis was performed using the high-powered pulse-modulated induction thermal plasma (PMITP) technique to study the effect of coil current modulation on synthesized nanoparticles. This is the first paper to present a summary of results of TiO2 nanoparticle synthesis using high-power Ar-O2 PMITP at 20 kW. The synthesized particles were analysed using field emission scanning electron microscopy and X-ray diffractometry. In addition, optical emission spectroscopy was used during nanoparticle synthesis experiments to measure TiO spectra and to determine the time-averaged vibrational and rotational temperatures of TiO in the reaction chamber. The results showed that the PMITP produced smaller nanoparticles and a narrower size distribution of particles. Moreover, PMITP provided a lower temperature region in the reaction chamber downstream of the plasma torch than such regions in non-modulated thermal plasmas. © 2010 IOP Publishing Ltd., 金沢大学理工研究域電子情報学系}, title = {Nanoparticle synthesis using high-powered pulse-modulated induction thermal plasma}, volume = {43}, year = {2010} }