Search Results 1-20 of 28

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  • Fabrication of Transparent Polycrystalline Ceramics by Utilizing External Field Effects  [in Japanese]

    MORITA Koji , YOSHIDA Hidehiro , KIM Byung-Nam

    … <p>Transparent polycrystalline ceramics, which can be fabricated through sintering processes, have received considerable attentions because those simultaneously possess optical and mechanical properties with relatively high productivity. … For attaining the optical transmission in the polycrystalline ceramics, an important factor is to achieve dense and fine grained microstructure. …

    Journal of the Japan Society of Powder and Powder Metallurgy 66(4), 158-167, 2019

    J-STAGE 

  • Synthesis of Transparent Nano-Ceramics under Ultra-High Pressure  [in Japanese]

    IRIFUNE Tetsuo

    … Various transparent nano-ceramics have been synthesized using direct conversion from bulk glass starting materials under pressures higher than ~10 GPa and at high temperatures in Kawai-type Multi-anvil Apparatus (KMA). … Rapid nucleation followed by slow crystal/grain growth is the key to synthesize such nano-ceramics at the ultra-high pressure regime. …

    The Review of High Pressure Science and Technology 28(3), 162-169, 2018

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  • Spark Plasma Sintering of Transparent Polycrystalline Ceramics for Laser Gain Media  [in Japanese]

    伊藤 暁彦 , 後藤 孝

    Ceramics Japan = セラミックス : bulletin of the Ceramic Society of Japan 52(4), 242-244, 2017-04

  • Transparent Polycrystalline Ceramics in Anisotropic Crystal System  [in Japanese]

    田中 諭

    Ceramics Japan = セラミックス : bulletin of the Ceramic Society of Japan 52(4), 238-241, 2017-04

  • Recent Progress in Transparent Polycrystalline Ceramics for Optical Applications  [in Japanese]

    YAGI Hideki , YANAGITANI Takagimi

    透明セラミックス光学材料の最新動向

    The Review of Laser Engineering 39(5), 300-305, 2011-05-15

    J-STAGE  References (35)

  • Technical Innovation for Optics from Single Crystal to Polycrystalline Ceramic  [in Japanese]

    Ikesue Akio

    セラミックス中の光学ロスを完全に除去することは1995年に成功し、透明セラミックスを用いてビーム品質の高いハイパワーレーザーの発生も達成出来た。セラミックスの光学品質は乏しいと言うのは正しいものではなく、セラミックは将来のオプティックスにおける新領域を切り開くであろう。レーザー、レンズ、シンチレーター等のオプトセラミックスの応用はすでに一般的なものになり、今日ではセラミックレーザーの研究開発は世界 …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2011F(0), 44-44, 2011

    J-STAGE 

  • Evidence of the inhomogeneous Ce[3+] distribution across grain boundaries in transparent polycrystalline Ce[3+]-doped (Gd,Y)3Al5O12 garnet optical ceramics

    Zhao Wei , Mancini Cedric , Amans David , Boulon Georges , Epicier Thierry , Min Yin , Yagi Hideki , Yanagitani Takagimi , Yanagida Takayuki , Yoshikawa Akira

    Japanese journal of applied physics 49(2), 022602-1〜6, 2010-02

    DOI 

  • Transparent polycrystalline MgAl2O4 spinel with submicron grains, by low temperature sintering

    GOLDSTEIN Adrian , GOLDENBERG Ayala , HEFETZ Meir

    Transparent, polycrystalline MgAl<sub>2</sub>O<sub>4</sub> … ceramics have been fabricated by sintering optimized-configuration, powder compacts formed from a material prepared by flame spray pyrolysis. … Transparent parts (80% light transmission at 2 mm thickness) could be obtained after pressureless sintering in air at 1280°C/3 h, followed by hot isostatic pressing at 1320°C/3 h/200 MPa. …

    Journal of the Ceramic Society of Japan 117(1371), 1281-1283, 2009

    J-STAGE 

  • Development of transparent polycrystalline ceramics  [in Japanese]

    藤田 光広

    Materials integration 21(12), 46-52, 2008-12

  • Fabrication of Aluminum Nitride Thin Film and Its Oxidation Behavior

    YAMASHITA Masashi , SASAKI Yukichi , ITO Hiroki , OHSATO Hitoshi , SHIBATA Noriyoshi

    … The obtained AlN film was transparent with a flat surface. … Transmission electron microscopy showed a polycrystalline Al<SUB>2</SUB>O<SUB>3</SUB> …

    Journal of the Society of Materials Science, Japan 55(8), 785-789, 2006-08-15

    J-STAGE  References (15)

  • Effect of Chemical Composition on the Optical Properties and Fracture Toughness of Transparent Magnesium Aluminate Spinel Ceramics

    Dericioglu Arcan F. , Boccaccini Aldo R. , Dlouhy Ivo , Kagawa Yutaka

    Polycrystalline transparent magnesium aluminate “spinel” … ceramics were fabricated by hot-pressing and hot isostatic pressing (HIPing) using commercially available MgO and Al<SUB>2</SUB>O<SUB>3</SUB> … UV/visible and near-IR wavelength region light reflection and transmission behaviors of the spinel ceramics were quantitatively correlated to their microstructure to account for the optical quality of the fabricated materials. …

    MATERIALS TRANSACTIONS 46(5), 996-1003, 2005

    J-STAGE 

  • High-Quality Epitaxial Film Growth of Transparent Oxide Semiconductors

    OHTA Hiromichi , NOMURA Kenji , HIRAMATSU Hidenori , SUZUKI Toshiyuki , UEDA Kazushige , KAMIYA Toshio , HIRANO Masahiro , IKUHARA Yuichi , HOSONO Hideo

    … We review the single-crystalline film growth techniques for transparent oxide semiconductors including ITO, NiO:Li, InGaO<sub>3</sub>(ZnO)<sub>m</sub> … Thus, we used a solid-phase epitaxy, where polycrystalline epitaxial films deposited at room temperature were converted to single-crystalline by thermal annealing. … As the layers subsequently deposited on a template layer are amorphous or polycrystalline, chemical composition of the epitaxial films can be controlled. …

    Journal of the Ceramic Society of Japan, Supplement 112(0), S602-S609, 2004

    J-STAGE 

  • Spectroscopic Properties and Laser Operation of Nd: Y<sub>3</sub>ScAl<sub>4</sub>O<sub>12</sub> Polycrystalline Gain Media, Solid-Solution of Nd: Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> and Nd: Y<sub>3</sub>Sc<sub>2</sub>Al<sub>3</sub>O<sub>12</sub> Ceramics

    SATO Yoichi , SAIKAWA Jiro , SHOJI Ichiro , TAIRA Takunori , IKESUE Akio

    Transparent Nd<sup>3+</sup>-doped Y<sub>3</sub>ScAl<sub>4</sub>O<sub>12</sub> … (Nd: Y<sub>3</sub>ScAl<sub>4</sub>O<sub>12</sub>) ceramics with up to 5.0-at.% Nd<sup>3+</sup>-concentration (<i>C</i><sub>Nd</sub>) were fabricated by a solid-state reaction method using commercial 4N powders. …

    Journal of the Ceramic Society of Japan, Supplement 112(0), S313-S316, 2004

    J-STAGE 

  • Transparent Dielectric Ceramics  [in Japanese]

    TANAKA Nobuhiko

    セラミックス 38(12), 967-969, 2003-12-01

    References (3) Cited by (1)

  • Controlled Synthesis of Scandia Nanopowders Leading to Transparent Ceramics

    LI Ji-Guang , IKEGAMI Takayasu , MORI Toshiyuki

    … So as an alternative, we fabricated in this work transparent scandia polycrystalline ceramics via sintering. … The starting powders for ceramics fabrication were synthesized by ourselves via precipitation from scandium nitrate solution, using hexamethylenetetramine as the precipitant and ammonium sulfate as an engineering reagent for powder properties (precursor composition and particle morphology). …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2003F(0), 21-21, 2003

    J-STAGE 

  • Innovation of Novel Melt/Casting Method for Nano-Structured Ceramics Composited with Multi-Component Oxides Systems

    YOSHIMURA Masahiro , ARAKI Shunji , CALDERON-MORENO Jose Maria

    … Generally, most of polycrystalline ceramics have been made from fine powders via their shape forming and sintering, not via melt/casting, because melt/solidified ceramics would crack during cooling. … In the ternary systems of Zirconia(Hafnia)-Alumina-YAG, we have succeeded to fabricate nano-structured bulk ceramics by just simple solidification of the melt. …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2003F(0), 4-4, 2003

    J-STAGE 

  • Single-Crystalline Film Growth of Transparent Oxide Semiconductors

    OHTA Hiromichi , NOMURA Kenji , HIRAMATSU Hidenori , SUZUKI Toshiyuki , UEDA Kazushige , KAMIYA Toshio , HIRANO Masahiro , IKUHARA Yuichi , HOSONO Hideo

    … We review the single-crystalline film growth for transparent oxide semiconductors including ITO, NiO:Li, InGaO<SUB>3</SUB>(ZnO)<SUB>m</SUB> … We used a solid-phase epitaxy, where polycrystalline epitaxial films deposited at room temperature were converted to single-crystalline by thermal annealing. … In the R-SPE method, the layers subsequently deposited on the template layer may be amorphous or polycrystalline, which allows control of chemical composition of resultant films. …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2003F(0), 424-424, 2003

    J-STAGE 

  • Single Crystalline Thin Films of Natural Superlattice Oxide, InGaO<SUB>3</SUB>(ZnO)<SUB>m</SUB>, Grown by instant Solid-Phase Epitaxy(II)

    Ohta Hiromichi , Nomura Kenji , Hiramatru Hidenori , Suzuki Toshiyuki , Ueda Kazushige , Orita Masahiro , Hirano Masahiro , Ikuhara Yuichi , Hosono Hideo

    反応型固相エピタキシャル成長法によるInGaO<SUB>3</SUB>(ZnO)<SUB>m</SUB>単結晶薄膜の成長機構を明らかにするため, 2nm厚のZnOエピタキシャル層とほとんどアモルファス状態のInGaO<SUB>3</SUB>(ZnO)<SUB>5</SUB>層(150nm厚)からなる二層 …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2002F(0), 340-340, 2002

    J-STAGE 

  • Single Crystalline Thin Films of Natural Superlattice Oxide, InGaO<SUB>3</SUB>(ZnO)<SUB>m</SUB>, Grown by Instant Solid-Phase Epitaxy(I)

    Ohta Hiromichi , Nomura Kenji , Hiramatsu Hidenori , Suzuki Toshiyuki , Ueda Kazushige , Orita Masahiro , Hirano Masahiro , Ikuhara Yuichi , Hosono Hideo

    我々は自然超格子酸化物の単結晶薄膜を作製するための魔法のような方法“反応型固相エピタキシャル成長法”を開発した。なんと単結晶薄膜が電気炉の中でできてしまうというユニークかつEASYな方法である。具体的には, 2nm厚の一構成成分のエピタキシャル層とほとんどアモルファス状態の自然超格子酸化物層からなる二層膜を電気炉で焼くのである。これだけでほぼ完壁な単結晶自然超格子薄膜を作製 …

    Preprints of Annual Meeting of The Ceramic Society of Japan<br>Preprints of Fall Meeting of The Ceramic Society of Japan 2002F(0), 339-339, 2002

    J-STAGE 

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