Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Hideo Awaji"'
Autor:
Hideo Awaji, Seong Min Choi
Publikováno v:
Journal of the Korean Ceramic Society. 49:385-396
Thermal shock test methods and thermal shock parameters for ceramics were reviewed from the following viewpoints: (1) The test methods should be based on the precise estimation of both temperature and thermal stress distributions in a specimen taking
Publikováno v:
Journal of Materials Science. 44:1622-1632
The effect of microstructures, such as grain size and internal pores, on the fatigue behavior of aluminum titanate (AT, Al2TiO5) ceramics was investigated at room temperature and 973 K. When the average grain size of the AT ceramics was decreased fro
Autor:
Shinobu Hashimoto, Seong Min Choi, Yoshikazu Takahashi, Tomoaki Goto, Hideo Awaji, Yoshitaka Nishimura
Publikováno v:
Journal of the Ceramic Society of Japan. 117:623-629
In order to improve the fracture toughness of intrinsically brittle ceramics, it is essential to expand the frontal process zone (FPZ) ahead of a crack tip. Nanocomposites proposed by Niihara utilize dislocations generated around the dispersed nano-s
Autor:
Sawao Honda, Koichiro Fukuda, Masaru Takeuchi, Koji Inoue, Shinobu Hashimoto, Hideo Awaji, Shaowei Zhang
Publikováno v:
Materials Letters. 62:1480-1483
Titanium aluminum carbide (Ti2AlC) was synthesized and pressureless sintered. Phase-pure Ti2AlC powder was prepared by heating a powder mixture of Al:Ti:TiC = 1:1:0.75 (molar ratio) at 1300 °C for 4 h. The Ti2AlC compacts used for pressureless sinte
Publikováno v:
Journal of the Society of Materials Science, Japan. 57:1054-1060
In order to develop new ceramics for a power electric device, alumina/nickel (Ni) nanocomposites were fabricated using the soaking method and the pulse electric current sintering technique. The volume fractions of Ni were 0.5, 1, and 5% in γ–alumi
Publikováno v:
Journal of the Korean Ceramic Society. 44:208-213
Alumina/silver (Al₂O₃/Ag) nanocomposites with Ag content up to 9 vol% were prepared from nanopowder by soaking method using γ-Al₂O₃ of needle type and spark plasma sintering (SPS). The mechanical properties of specimens were investigated thr
Publikováno v:
Key Engineering Materials. :2242-2246
In order to improve fracture toughness of ceramics, an intrinsically small frontal process zone (FPZ) size must be expanded. An intra-type nano-structure, where nano-particles are embedded within matrix grains, yields dislocations around the disperse
Autor:
Hideo Awaji, Chun-Hong Chen
Publikováno v:
Key Engineering Materials. :1745-1750
A novel estimation for the critical size of the frontal process zone of ceramics is proposed using a single-edge V-notched beam (SEVNB) technique. A three-point flexure test is carried out on aluminum titanate ceramics containing a sharp V-shaped not
Autor:
Chun-Hong Chen, Hideo Awaji
Publikováno v:
Journal of the European Ceramic Society. 27:13-18
Aluminum titanate (Al2TiO5: AT) is a synthetic ceramic material of potential interest for many structural applications. A critical feature, which greatly limits the mechanical properties of polycrystalline AT, is the considerable intergranular microc
Autor:
Sawao Honda, Hayami Takeda, Atsushi Okuda, Akira Kambayashi, Shinobu Hashimoto, Hideo Awaji, Koichiro Fukuda
Publikováno v:
Journal of the Ceramic Society of Japan. 115:290-293
According to phase-contrast microscope analysis based on the JIS A 1481: 2006, chrysotile in the asbestos-containing building material waste was not detected after heating at 800°C for over 2 h. The asbestos-cement which was ground to below 180 μm