Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Sukeji Kachi"'
Publikováno v:
Chemistry Letters. 4:1131-1136
When V2O5 is reduced isothermally by SO2 gas (200 cc/min), the weight loss shows the stepwise curve. Each step corresponds to the intermediate phase expressed by general formula VNO2N+1 (N=3,4,5, … and ∞). The quenched specimens at each step anal
Publikováno v:
physica status solidi (b). 66:765-772
Impurity effects on the metal-semiconductor transition of hexagonal N P have been investigated by magnetic susceptibility, electrical resistivity, and thermoelectric power measurements. The transition temperature Tt is raised by addition of Ti, V, an
Publikováno v:
Materials Research Bulletin. 13:305-310
V2O3−xFx samples have been prepared by reaction of V2O3, V and VF3 at 1100°C and 15–20 kb pressure. Homogeneous, single-phase products were obtained for 0 ≦ x < 0.3, which possess the corundum structure at room temperature. Substitution of flu
Autor:
Sukeji Kachi, Koji Kosuge
Publikováno v:
Materials Research Bulletin. 11:255-262
The phase diagram of the FexV1−xO2 system (0≤x≤0.25) has been studied in detail by means of X-ray diffraction and differential scanning calorimetry (DSC). As the result, there appear succesively six phases, M1→T→M2→M4→O→X (the same no
Publikováno v:
Le Journal de Physique Colloques. 43:C4-335
The antiferromagnetic AuMn-AuZn quasibinary alloys undergo a martensitic transformation from the CsCl-type cubic (B2) to the tetragonal (tetragonally distorted B2) with the axial ratio c/a
Publikováno v:
Physical Review B. 9:1230-1239
The local magnetic properties of the various atomic sites in metallic and insulating ${\mathrm{V}}_{4}$${\mathrm{O}}_{7}$ and ${\mathrm{V}}_{7}$${\mathrm{O}}_{13}$ have been determined by means of $^{51}\mathrm{V}$ nuclear magnetic resonance. Remarka
Autor:
Sukeji Kachi
Publikováno v:
Kobunshi. 28:723-726
Publikováno v:
Materials Research Bulletin. 15:521-524
The system Fe X VS 2 has been investigated by X-ray and DTA measurements. In this system, iron atoms are located in the alternative metal layers, and vacancy-ordered structures appear at low temperatures. The order-disorder transition of metal vacanc
Autor:
Yuichiro Murakami, Sukeji Kachi
Publikováno v:
Transactions of the Japan Institute of Metals. 24:741-747
Etude par microscopie electronique de la morphologie de la phase 2H dans Ni 67 Cu 8 Sn 25 soumis a differentes vitesses de refroidissement
Autor:
Sukeji Kachi, Yuichiro Murakami
Publikováno v:
Transactions of the Japan Institute of Metals. 24:9-17
Etude par microscopie electronique des transformations martensitique et massive dans l'alliage Ni 71 Cu 4 Sn 25 . La phase cubique haute temperature DO 3 entreprend une transformation martensitique vers la structure 2H orthorhombique pendant la tremp