Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Kazuo Ueno"'
Autor:
Kazuo UENO
Publikováno v:
Journal of The Surface Finishing Society of Japan. 73:213-218
Autor:
Kazuo Ueno
Publikováno v:
Journal of the Society of Materials Science, Japan. 70:64-69
Publikováno v:
MATERIALS TRANSACTIONS. 52:1535-1538
Pb-filled Chevrel-phase sulfides PbMo6S8−y were prepared from PbS, Mo, and MoS2. The single phase was formed in the nominal composition PbMo6S7.8 (8−y=7.8). While the secondary PbS and Mo phases were formed in sulfur-poor compositions, the second
Autor:
Haruhiko Obara, Atsushi Yamamoto, S. Sodeoka, Kazuo Ueno, T. Noguchi, Takahiro Inoue, C.H. Li
Publikováno v:
Journal of Alloys and Compounds. 417:259-263
Two kinds of thermoelectric p-type semiconductive ɛ-Zn 4 Sb 3 with different oxygen content were prepared by hot-pressing at 748 K under 49 MPa for 5 h in vacuum, and their transport and thermoelectric properties were evaluated to study the effect o
Publikováno v:
Journal of Alloys and Compounds. 392:295-299
Thermoelectric p-type semiconductive ɛ-Zn 4 Sb 3 was hot-pressed at 748 K under 49 MPa for 5 h in vacuum from three kinds of raw powder having different average particle sizes (12.1, 19.5 and 44.3 μm) in order to study the effect of particle size o
Publikováno v:
Journal of Alloys and Compounds. 388:118-121
Mechanical properties including Young's modulus, Vickers hardness, 3-point bending strength, and fracture toughness, were evaluated for p-type semiconductive thermoelectric Zn 4 Sb 3 hot-pressed at four different temperatures ranging from 738 K to 75
Autor:
T. Noguchi, Changi Lee, H. Takazawa, Atsushi Yamamoto, Takahiro Inoue, S. Sodeoka, Kazuo Ueno, Haruhiko Obara
Publikováno v:
Journal of Alloys and Compounds. 384:254-260
Thermoelectric Zn 4 Sb 3 bulk specimens have been fabricated by hot pressing at various temperatures from 738 to 753 K either in a vacuum or under pressurized Ar. The bulk specimens consist of a single-phase p-type semiconductive e-Zn 4 Sb 3 compound
Publikováno v:
Journal of Materials Science. 36:5773-5777
The effects of SiC and B4C additives in the MoSi2 matrix on the microstructures and mechanical properties at room temperature were investigated. Their coefficients of thermal expansion (CTE) were also evaluated up to 1200°C by a thermal mechanical a
Publikováno v:
Ceramics International. 27:321-324
A new series of oxides Ca3−xSrxCo4O9+δ, (x=0.0–1.0) were synthesized, and their structures, electrical properties and Seebeck coefficients were measured from room temperature to 700°C. All the oxides have Ca2Co2O5 type structure. For all the ox
Publikováno v:
Journal of the European Ceramic Society. 20:1877-1881
Fibrous Al2O3 ceramics with a mixture of SiC and Al2O3 as the cell boundaries were fabricated by extrusion-molding and hot-pressing techniques. The effects of the cell boundary composition on the mechanical properties and fracture behavior are invest