Search Results - "Hojo, J."

Microwave-assisted zeolite synthesis from coal fly ash in hydrothermal process by Inada, Miki, Tsujimoto, Hidenobu, Eguchi, Yukari, Enomoto, Naoya, Hojo, Junichi

“…Coal fly ashes, which include much amount of silica and alumina, can be converted into zeolite by hydrothermal alkaline treatment. In the present work, the…”
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New technique to trace [15O]water uptake in a living plant with an imaging plate and a BGO detector system by Tanoi, K., Hojo, J., Nishioka, M., Nakanishi, T. M., Suzuki, K.

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Synthesis of zeolite from coal fly ashes with different silica–alumina composition by Inada, Miki, Eguchi, Yukari, Enomoto, Naoya, Hojo, Junichi

“…Coal fly ashes can be converted into zeolites by hydrothermal alkaline treatment. This study focuses on the effect of Si/Al molar ratio of the fly ash source…”
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Inhibition of grain growth in liquid-phase sintered SiC ceramics by AlN additive and spark plasma sintering by Hotta, Mikinori, Hojo, Junichi

“…SiC ceramics were prepared from nanosized β-SiC powder with different compositions of AlN and Y 2O 3 sintering additives by spark plasma sintering (SPS) at…”
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Spark Plasma Sintering of Nanosized Amorphous Silicon Nitride Powder with a Small Amount of Sintering Additive by Hotta, Mikinori, Shinoura, Takanori, Enomoto, Naoya, Hojo, Junichi

“…Dense and fine‐grained β‐Si3N4 ceramics were successfully obtained with a small amount of sintering additives, 1.5 mass% Y2O3 and 0.5 mass% Al2O3, using…”
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Development of synergistic AIN ceramics by simultaneous addition of BN and TiN by Tajika, M, Matsubara, H, Rafaniello, W, Hojo, J

“…The potential development of new synergetics aluminium nitride (AIN) ceramics was demonstrated. The composites obtained by heat treatment showed improved…”
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Influence of Sintering Aid on the Translucency of Spark Plasma-Sintered Silicon Nitride Ceramics by Yang, Wenwu, Hojo, Junichi, Enomoto, Naoya, Tanaka, Yumi, Inada, Miki

“…Single additives (Y2O3, MgO, and Al2O3) were used as sintering aid of Si3N4. The density, crystal phase, microstructure, transmittance, hardness, and fracture…”
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Mechanism of Alumina-Enhanced Sintering of Fine Zirconia Powder: Influence of Alumina Concentration on the Initial Stage Sintering by Matsui, Koji, Yamakawa, Takanori, Uehara, Masato, Enomoto, Naoya, Hojo, Junichi

“…The isothermal shrinkage behavior of 2.9 mol% Y2O3‐doped ZrO2 powders with 0–1 mass% Al2O3 was investigated to clarify the effect of Al2O3 concentration on the…”
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Sintering Kinetics at Constant Rates of Heating: Effect of Al2O3 on the Initial Sintering Stage of Fine Zirconia Powder by Matsui, Koji, Ohmichi, Nobukatsu, Ohgai, Michiharu, Enomoto, Naoya, Hojo, Junichi

“…The sinterabilities of fine zirconia powders including 5 mass% Y2O3 were investigated, with emphasis on the effect of Al2O3 at the initial sintering stage. The…”
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Microstructural and Thermoelectric Characteristics of Zinc Oxide-Based Thermoelectric Materials Fabricated Using a Spark Plasma Sintering Process by Kim, Kyoung Hun, Shim, Seung Hwan, Shim, Kwang Bo, Niihara, Koichi, Hojo, Junichi

“…M‐doped zinc oxide (ZnO) (M=Al and/or Ni) thermoelectric materials were fully densified at a temperature lower than 1000°C using a spark plasma sintering…”
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Effect of Ni doping on the structure and properties of In2O3 nanocrystals prepared under magnetic field by Tong, Hui, Chu, Dewei, Zuo, Kaihui, Zeng, Yu-Ping, Enomoto, Naoya, Inada, Miki, Tanaka, Yumi, Hojo, Junichi

“…Ni doped In2O3 nanocrystals were prepared by a coprecipitation method, and calcined in the absence of a magnetic field or in 12T magnetic field. X-ray…”
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Sintering Kinetics at Isothermal Shrinkage: Effect of Specific Surface Area on the Initial Sintering Stage of Fine Zirconia Powder by Matsui, Koji, Matsumoto, Akira, Uehara, Masato, Enomoto, Naoya, Hojo, Junichi

“…The isothermal shrinkage behaviors of fine zirconia powders (containing 2.8–2.9 mol% Y2O3) with specific surface areas of about 6 and 16 m2/g were investigated…”
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Fast Oxide Ion Conduction Due to Carbonate Substitution in Hydroxyapatite by Tanaka, Yumi, Kikuchi, Mai, Tanaka, Kazumasa, Hashimoto, Kazuaki, Hojo, Junichi, Nakamura, Miho, Nagai, Akiko, Sugiyama, Tatsuo, Munakata, Fumio, Yamashita, Kimihiro

“…To provide ceramic electrets with superior biocompatibility and controlled surface energy utilizing long‐distance ionic conduction under a DC electric field,…”
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SiC-B4C composites for synergistic enhancement of thermoelectric property by UEHARA, Masato, SHIRAISHI, Ryosuke, NOGAMI, Atsushi, ENOMOTO, Naoya, HOJO, Junichi

“…SiC-B4C composites were fabricated by hot pressing a beta-SiC and B4C powder mixture. The Seebeck coefficient was determined at 300-900 C in air. The SiC-B4C…”
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A 1/3-in 510(H)492(V) CCD image sensor with mirror image function by Hojo, J., Naito, Y., Mori, H., Foujikawa, K., Kato, N., Wakayama, T., Komatsu, E., Itasaka, M.

“…A 1/3-in optical format 510(H)*492(V) interline charge-coupled-device (CCD) image sensor with a mirror-image function has been developed. To realize both a…”
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Template Effect of Cholesterol-based Organogels on Sol-Gel Polymerization Creates Novel Silica with a Helical Structure by Ono, Yoshiyuki, Nakashima, Kazuaki, Sano, Masahito, Hojo, Junichi, Shinkai, Seiji

“…The helical structure was introduced into the silica for the first time utilizing a template effect of a cholesterol-based organogel system. It was shown that…”
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SINTERING KINETICS AT ISOTHERMAL SHRINKAGE. PT.2. EFFECT OF Y2O3 CONCENTRATION ON THE INITIAL SINTERING STAGE OF FINE ZIRCONIA POWDER by Matsui, K, Tanaka, K, Yamakawa, T, Uehara, M, Enomoto, N, Hojo, J

“…The shrinkage behaviour of fine zirconia powders containing 2.9 and 7.8 mol% Y2O3 was investigated to clarify the effect of Y2O3 concentration on the initial…”
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Solid-State Electrochemical Micromachining by Kamada, Kai, Izawa, Kazuyoshi, Tsutsumi, Yuko, Yamashita, Shuichi, Enomoto, Naoya, Hojo, Junichi, Matsumoto, Yasumichi

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An analysis of long-distance water transport in the soybean [Glycine max] stem using H2(15)O by Ohya, T.(National Inst. of Radiological Sciences, Chiba (Japan)), Tanoi, K, Hamada, Y, Okabe, H, Rai, H, Hojo, J, Suzuki, K, Nakanishi, T.M

“…The lateral water movement in the intact stem of a transpiring soybean plant was analyzed quantitatively by a real-time measurement system utilizing labeled…”
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Preparation of Novel Hollow Fiber Silica Using Collagen Fibers as a Template by Ono, Yoshiyuki, Kanekiyo, Yasumasa, Inoue, Kazuhiko, Hojo, Junichi, Nango, Mamoru, Shinkai, Seiji

“…A novel fibrous silica with a gnarled surface structure and an inner tube with bundle-replicated stripes was prepared by sol-gel polymerization of…”
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