Zobrazeno 1 - 10
of 2 623
pro vyhledávání: '"high pressure synthesis"'
Autor:
Wei Li, Shuailing Ma, Siwen Cui, Jingxue Ding, Marc Widenmeyer, Xiaoqi Zhang, Ying Zhan, Zhaoju Yu, Wenshu Zhang, Pinwen Zhu, Tian Cui, Anke Weidenkaff, Ralf Riedel
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 10, Pp 1611-1621 (2024)
The preparation of dense Si3N4-based ceramics has attracted great attention because of the achievable improvements in their mechanical properties and high-temperature oxidation resistance. In this work, advanced dense boron-containing α/β-Si3N4/Si
Externí odkaz:
https://doaj.org/article/d63f031a0d174d9b9df5bb56271683bf
Autor:
Takehiro Koike, Hena Das, Kengo Oka, Yoshihiro Kusano, Fernando Cubillas, Francisco Brown Bojorqez, Victor Emmanuel Alvarez-Montano, Shigekazu Ito, Kei Shigematsu, Hayato Togano, Ikuya Yamada, Hiroki Ishibashi, Yoshiki Kubota, Shigeo Mori, Noboru Kimizuka, Masaki Azuma
Publikováno v:
Solids, Vol 5, Iss 3, Pp 422-433 (2024)
Spinel-type InGaMgO4 with a = 8.56615(3) Å was prepared by treating layered YbFe2O4-type InGaMgO4 at 6 GPa and 1473 K. DFT calculation and Rietveld analysis of synchrotron X-ray powder diffraction data revealed the inverse spinel structure with In3+
Externí odkaz:
https://doaj.org/article/623ce9703b3945c886b4945eee7126fc
Autor:
Hung‐Cheng Wu, Takuya Aoyama, Daisuke Morikawa, Daisuke Okuyama, Kazuhiro Nawa, Wei‐Tin Chen, Chan‐Hung Lu, Tsung‐Wen Yen, Shin‐Ming Huang, Stuart Calder, Shuki Torii, Kenya Ohgushi, Masami Terauchi, Taku J. Sato
Publikováno v:
Advanced Physics Research, Vol 3, Iss 11, Pp n/a-n/a (2024)
Abstract A polymorph of Cu2OSeO3 with the distorted kagome lattice is successfully obtained using the high‐pressure synthesis technique (Cu2OSeO3‐HP). The structural analysis using X‐ray and neutron powder diffraction suggests that the tetrahed
Externí odkaz:
https://doaj.org/article/077d5e262d194b6989bff0127abec57c
Autor:
Mingyu Xu, Shuyuan Huyan, Haozhe Wang, Sergey L. Bud'ko, Xinglong Chen, Xianglin Ke, John F. Mitchell, Paul C. Canfield, Jie Li, Weiwei Xie
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 9, Pp n/a-n/a (2024)
Abstract Recently, superconductivity at high temperatures is observed in bulk La3Ni2O7−δ under high pressure. However, the attainment of high‐purity La3Ni2O7−δ single crystals remains a formidable challenge. Here, the crystal structure and ph
Externí odkaz:
https://doaj.org/article/4c1b4d5f75614df3904b4589c16cb732
Autor:
Yuji Sano, Yuta Koyama, Naoto Takahata, Takuya Matsuzaki, Mizuho Koike, Makiko K. Haba, Shuhei Sakata, Hideharu Kuwahara, Tetsuo Irifune
Publikováno v:
Journal of Analytical Science and Technology, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract New standard zircons applicable to in situ analysis of Hf/W ratio by Nanoscale secondary ion mass spectrometer (NanoSIMS) were prepared and applied to Hf-W dating of a differentiated meteorite classified as mesosiderite. The standard zircons
Externí odkaz:
https://doaj.org/article/7c818fe2fe9b4e19a685ad6fb4c7dce4
Autor:
Binhao Wang, Haidong Zhao, Jianghua Li, Bin Zhang, Dan Wang, Chen Chen, Aihua Song, Wentao Hu, Dongli Yu, Bo Xu, Yongjun Tian
Publikováno v:
Journal of Materiomics, Vol 10, Iss 2, Pp 285-292 (2024)
With the advantages of eco-friendliness, low cost, and low density, Mg2(Si,Sn) solid solutions are promising candidates for thermoelectric applications. In this work, Sb-doped Mg2Si0.4Sn0.6 bulks were prepared with a combined method of solid-state re
Externí odkaz:
https://doaj.org/article/64d611a160eb400b8d8ef29717377066
Autor:
Dmitrii G. Pasternak, Rustem H. Bagramov, Alexey M. Romshin, Igor P. Zibrov, Vladimir P. Filonenko, Igor I. Vlasov
Publikováno v:
Nanomaterials, Vol 14, Iss 22, p 1843 (2024)
Despite progress in the high-pressure synthesis of nanodiamonds from hydrocarbons, the problem of controlled formation of fluorescent impurity centers in them still remains unresolved. In our work, we explore the potential of a new precursor composit
Externí odkaz:
https://doaj.org/article/0b848839d834421ca87a4fd2dacd6a8e
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
The multi-anionic compound with the composition Dy36O11F50[AsO3]12 ∙ H2O, which can be described in the non-centrosymmetric cubic space group F4¯3c, already shows an unusually large unit cell with an axis of a = 2587.59(14) pm. Its crystal structu
Externí odkaz:
https://doaj.org/article/0dbb70d22727487b8955bd7a86b6e541
Akademický článek
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Autor:
Alexei A. Belik
Publikováno v:
Inorganics, Vol 12, Iss 8, p 226 (2024)
BiFeO3-related perovskite-type materials attract a lot of attention from the viewpoint of applications and fundamental science. In this work, we prepared two modifications of heavily Mn-doped BiFeO3 with the composition of BiFe0.6Mn0.4O3. A high-pres
Externí odkaz:
https://doaj.org/article/641eb54316a54a2997bc4c567cacd540