Bhat, Shrikant ; Lale, Abhijeet ; Bernard, Samuel ; Zhang, Wei ; Ishikawa, Ryo ; Haseen, Shariq ; Kroll, Peter ; Wiehl, Leonore ; Farla, Robert ; Katsura, Tomoo ; Ikuhara, Yuichi ; Riedel, Ralf (2020)
Discovery of Ternary Silicon Titanium Nitride with Spinel-Type Structure.
In: Scientific Reports, 10 (1)
doi: 10.1038/s41598-020-64101-5
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Here we report on the discovery of a ternary silicon titanium nitride with the general composition (Si1−x,Tix)3N4 with x = 0 < x < 1 and spinel-type crystal structure. The novel nitride is formed from an amorphous silicon titanium nitride (SiTiN) precursor under high-pressure/high-temperature conditions in a large volume high-pressure device. Under the conditions of 15–20 GPa and 1800–2000 °C, spinel-type γ-Si3N4 and rock salt-type c-TiN are formed. In addition, crystals of the discovered nano-sized ternary phase (Si1−x,Tix)3N4 embedded in γ-Si3N4 are identified. The ternary compound is formed due to kinetically-controlled synthesis conditions and is analyzed to exhibit the spinel-type structure with ca. 8 atom% of Ti. The Ti atoms occur in both Ti3+ and Ti4+ oxidation states and are located on the Si sites. The ternary nano-crystals have to be described as (Si,Ti)3N4 with N-vacancies resulting in the general composition (Si4+1−x Ti4+x-δTi3+δ)3N4-δ.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Bhat, Shrikant ; Lale, Abhijeet ; Bernard, Samuel ; Zhang, Wei ; Ishikawa, Ryo ; Haseen, Shariq ; Kroll, Peter ; Wiehl, Leonore ; Farla, Robert ; Katsura, Tomoo ; Ikuhara, Yuichi ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Discovery of Ternary Silicon Titanium Nitride with Spinel-Type Structure |
| Sprache: | Englisch |
| Publikationsjahr: | 30 April 2020 |
| Verlag: | Springer Nature |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scientific Reports |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1038/s41598-020-64101-5 |
| URL / URN: | https://www.nature.com/articles/s41598-020-64101-5#citeas |
| Kurzbeschreibung (Abstract): | Here we report on the discovery of a ternary silicon titanium nitride with the general composition (Si1−x,Tix)3N4 with x = 0 < x < 1 and spinel-type crystal structure. The novel nitride is formed from an amorphous silicon titanium nitride (SiTiN) precursor under high-pressure/high-temperature conditions in a large volume high-pressure device. Under the conditions of 15–20 GPa and 1800–2000 °C, spinel-type γ-Si3N4 and rock salt-type c-TiN are formed. In addition, crystals of the discovered nano-sized ternary phase (Si1−x,Tix)3N4 embedded in γ-Si3N4 are identified. The ternary compound is formed due to kinetically-controlled synthesis conditions and is analyzed to exhibit the spinel-type structure with ca. 8 atom% of Ti. The Ti atoms occur in both Ti3+ and Ti4+ oxidation states and are located on the Si sites. The ternary nano-crystals have to be described as (Si,Ti)3N4 with N-vacancies resulting in the general composition (Si4+1−x Ti4+x-δTi3+δ)3N4-δ. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 24 Jul 2020 06:30 |
| Letzte Änderung: | 11 Aug 2020 06:31 |
| PPN: | |
| Projekte: | Ralf Riedel is grateful for a JSPS fellowship from August to October 2019 (Fellowship ID: S19003)., Ryo Ishikawa and Yuichi Ikuhara acknowledge the support from JSPS KAKENHI (Grant No. 17H01316, 17K18974, 19H05788, JP17H06094) and “Nanotechnology Platform” (Project No. 12024046) by MEXT, Japan., Financial support was also provided by the Federal Ministry of Education and Research, Germany (BMBF, grant nos.: 05K16WC2 & 05K13WC2)., Samuel Bernard acknowledges the support from the French funding agency Agence Nationale de la Recherche (ANR) (Project number ANR-16-CE08-0026). |
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