Zobrazeno 51 - 60
of 194
pro vyhledávání: '"Hiroaki Ohfuji"'
Autor:
Binbin Wu, Li Lei, Feng Zhang, Tetsuo Irifune, Yuanhua Xia, Leiming Fang, Xiaojun Xiang, Hiroaki Ohfuji, Shan Liu, Qiqi Tang, Qiwei Hu
Publikováno v:
Journal of Applied Physics. 129:105901
Cobalt plays a crucial role in the systematic understanding of magnetic phenomena originating from 3d transition metals. Particularly, recent studies of Co systems doped with nitrogen (Co–N) have attracted a lot of attention for applications in spi
Publikováno v:
Japanese Journal of Applied Physics. 60:035501
We investigate the activation of Sn-V centers in diamond through ions implantation and the subsequent high pressure and high temperature (HPHT) treatment at 15 GPa and 2300 °C. Sn ions is implanted at fluences greater than 2 × 1014 cm−2 by varyin
Autor:
Judit Sándorné Kovács, István Kovács, Peter R. Buseck, Kurt Leinenweber, Hiroaki Ohfuji, Kenneth J. Domanik, Péter Németh, Thomas L. Groy
Publikováno v:
Earth and Planetary Science Letters. 469:148-155
Water-bearing minerals provide fundamental knowledge regarding the water budget of the mantle and are geophysically significant through their influence on the rheological and seismic properties of Earth's interior. Here we investigate the CaO–SiO2
Autor:
Olga V. Shchepetova, Vladimir Ya. Shur, D. S. Mikhailenko, Hiroaki Ohfuji, Andrey V. Korsakov, Pavel Zelenovskiy
Publikováno v:
Journal of Raman Spectroscopy. 48:1606-1612
Confocal 2D and 3D Raman imaging was applied to SiO2 inclusions in kyanite porphyroblasts from diamond-bearing kyanite gneisses of the Kokchetav Massif (Northern Kazakhstan). The study reveals a mineral assemblage of coesite-disordered graphite which
Autor:
Alexander P. Yelisseyev, Hiroaki Ohfuji, Motosuke Nakaya, V. P. Afanasiev, Konstantin D. Litasov
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 112:46-51
Autor:
Yoshihiro Nakamuta, Mariko Nagashima, Terumi Ejima, Masahide Akasaka, Yoshiaki Kon, Hiroaki Ohfuji, Mari Yoneda
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 112:116-126
Publikováno v:
Journal of Japan Institute of Light Metals. 67:361-366
Autor:
Jozef Bednarcik, Oliver Beermann, Norimasa Nishiyama, Christin Szillus, Astrid Holzheid, Nico Alexander Gaida, Lorenz Kienle, Christopher Giehl, Ulrich Schürmann, Hiroaki Ohfuji, Eleonora Kulik, Atsunobu Masuno
Publikováno v:
Journal of the American Ceramic Society. 100:323-332
We report the synthesis of alumina/stishovite nano–nano composite ceramics through a pressure-induced dissociation in Al2SiO5 at a pressure of 15.6 GPa and temperatures of 1300°C–1900°C. Stishovite is a high-pressure polymorph of silica and the
Publikováno v:
Geochemistry International. 54:834-838
We report cloudy micro- and nano-inclusions in a superdeep diamond from Sao-Luiz, Brazil which contains inclusions of ferropericlase (Mg, Fe)O and former bridgmanite (Mg, Fe)SiO3 and ringwoodite (Mg, Fe)2SiO4. Field emission-SEM and TEM observations
Publikováno v:
Physics and Chemistry of Minerals. 44:33-42
Lingunite (hollandite with Na contents of 80–85 mol%) discovered in the shock veins of strongly shocked meteorites is an important signature of shock metamorphism. To seek the stability region of lingunite, phase relations in the system KAlSi3O8–