Synthesis and structural analysis of high refractive index and low wavelength dispersion rare-earth oxide glasses prepared by containerless processing

• Project/Area Number: 25410236
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: The University of Tokyo
• Principal Investigator: Masuno Atsunobu 東京大学, 生産技術研究所, 助教 (00378879)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: ニューガラス / ホウ酸ガラス / アッベ数 / 光学ガラス / ガラス構造 / 局所構造 / ガラス形成能 / ガラス形成則 / 高屈折率 / X線回折 / 中性子回折 / ラマン散乱

Outline of Final Research Achievements

In this project,we have successfully synthesized rare-earth oxides glasses that were regarded glass-forming compositions, obtained optical properties, and performed structural analyses of the glasses.
By using containerless processing, we have obtained La2O3-rich La2O3-Nb2O5 glass systems and La2O3-B2O3 glass systems. Both of the glasses showed excellent optical properties such as refractive index greater than 1.9 with very low wavelength dispersion. Optical parameters and structural information obtained from physical data and structural analysis indicated that the rare-earth rich glasses were totally different from conventional network-forming glasses in the origin of the properties.

Research Products

• [Journal Article] Higher refractive index and lower wavelength dispersion of SiO2 glass by structural ordering evolution via densification at a higher temperature (2016)
  • Author(s): A. Masuno, N. Nishiyama, F. Sato, N. Kitamura, T. Taniguchi, H. Inoue
  • Journal Title: RSC Advances Volume: 6 Issue: 23 Pages: 19144-19149
  • DOI: 10.1039/c5ra25106k
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Er3+ infrared fluorescence affected by spatial distribution synchronicity of Ba2+ and Er3+ in Er3+-doped BaO-SiO2 glasses (2016)
  • Author(s): A. Masuno, H. Inoue, Y. Saito
  • Journal Title: AIP Advances Volume: 6 Issue: 2 Pages: 025220-025220
  • DOI: 10.1063/1.4942978
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Synchrotron X-ray Scattering Measurements of Disordered Materials (2016)
  • Author(s): S. Kohara, K. Ohara, H. Tajiri, C. Song, O. Sakata, T. Usuki, Y. Benino, A. Mizuno, A. Masuno, J. T. Okada, T. Ishikawa, S. Hosokawa
  • Journal Title: Z. Phys. Chem. Volume: 230 Issue: 3 Pages: 339-368
  • DOI: 10.1515/zpch-2015-0654
  • NAID: 120006697258
  • Peer Reviewed
• [Journal Article] Crack-resistant Al2O3-SiO2 glasses (2016)
  • Author(s): G. A. Rosales-Sosa, A. Masuno, Y. Higo, H. Inoue
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 23620-23620
  • DOI: 10.1038/srep23620
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 大過冷却融液から結晶化した準安定相六方晶鉄酸化物 (2016)
  • Author(s): 増野敦信，馬込栄輔，森吉千佳子
  • Journal Title: 日本結晶学会誌 Volume: 58
  • NAID: 130005159760
  • Peer Reviewed
• [Journal Article] Expansion of the Hexagonal Phase-Forming Region of Lu1－xScxFeO3 by Containerless Processing (2015)
  • Author(s): A. Masuno, A. Ishimoto, C. Moriyoshi, H. Kawaji, Y. Kuroiwa, H. Inoue
  • Journal Title: Inorganic Chemistry Volume: 54 Issue: 19 Pages: 9432-9437
  • DOI: 10.1021/acs.inorgchem.5b01225
  • Peer Reviewed
• [Journal Article] A complete solid solution with rutile-type structurein SiO2-GeO2 system at 12 GPa and 1600°C (2015)
  • Author(s): E. Kulik, N. Nishiyama, A. Masuno, Y. Zubravichus, V. Murzin, E. Khramov, A. Yamada, H. Ohfuji, H.-C. Wille, T. Irifune, T. Katsura
  • Journal Title: Journal of the American Ceramic Society Volume: 98 Issue: 12 Pages: 4111-4116
  • DOI: 10.1111/jace.13859
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High Elastic Moduli of a 54Al2O3-46Ta2O5 Glass Fabricated via Containerless Processing (2015)
  • Author(s): G. A. Rosales-Sosa, A. Masuno, Y. Higo, H. Inoue, Y. Yanaba, T. Mizoguchi, T. Umada, K. Okamura, K. Kato, Y. Watanabe
  • Journal Title: Scientific Reports Volume: 5 Issue: 1 Pages: 15233-15233
  • DOI: 10.1038/srep15233
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ガラスにならないZrO2融体の原子・電子構造 (2015)
  • Author(s): 小原真司，増野敦信，水野章敏，岡田純平，石川毅彦
  • Journal Title: NEW GLASS Volume: 116 Pages: 28-31
• [Journal Article] Containerless solidification of undercooled SrO-Al2O3 binary melts (2015)
  • Author(s): K. Kato, A. Masuno, H. Inoue
  • Journal Title: Physical Chemistry Chemical Physics Volume: 17 Issue: 9 Pages: 6495-6500
  • DOI: 10.1039/c4cp05861e
  • Peer Reviewed
• [Journal Article] Thermal stability, optical transmittance and refractive index dispersion of La2O3-Nb2O5-Al2O3 glasses (2015)
  • Author(s): K. Yoshimoto, A. Masuno, H. Inoue, Y. Watanabe
  • Journal Title: Journal of the American Ceramic Society Volume: 98 Issue: 2 Pages: 402-407
  • DOI: 10.1111/jace.13310
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 無容器法による超高屈折率ガラスの開発 (2015)
  • Author(s): 増野敦信
  • Journal Title: 化学と教育 Volume: 63 Pages: 8-11
  • Peer Reviewed
• [Journal Article] Topological Engineering of Glass for Modulating Chemical State of Dopants (2014)
  • Author(s): S. Zhou, Q. Guo, H. Inoue, Q. Ye, A. Masuno, B. Zheng, Y. Yu, J. Qiu
  • Journal Title: Advanced Materials Volume: 26 Issue: 47 Pages: 7966-7972
  • DOI: 10.1002/adma.201403256
  • Peer Reviewed
• [Journal Article] Atomic and electronic structures of an extremely fragile liquid (2014)
  • Author(s): Shinji Kohara, Jaakko Akola, Leonid Patrikeev, Matti Ropo, Koji Ohara, Masayoshi Itou, Akihiko Fujiwara, Jumpei Yahiro, Jumpei T. Okada, Takehiko Ishikawa, Akitoshi Mizuno, Atsunobu Msauno, Yasuhiro Watanabe, Takeshi Usuki
  • Journal Title: Nature Communications Volume: 5 Issue: 1 Pages: 1-8
  • DOI: 10.1038/ncomms6892
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 新しい高温対応コンデンサ材料の開発 (2014)
  • Author(s): 増野敦信
  • Journal Title: セラミックデータブック2014/15 Volume: 42 Pages: 138-142
• [Journal Article] 無容器プロセスの新しい展開 (2014)
  • Author(s): 井上博之，増野敦信
  • Journal Title: 化学 Volume: 69 Pages: 70-71
• [Journal Article] Adiabatic small polaron hopping in K2O-WO3-Nb2O5-P2O5 glasses (2014)
  • Author(s): I. Oliva, A. Masuno, H. Inoue
  • Journal Title: Solid State Ionics Volume: 255 Pages: 56-59
  • DOI: 10.1016/j.ssi.2013.12.002
  • Peer Reviewed
• [Journal Article] High Refractive Index Glasses Prepared by Containerless Processing (2014)
  • Author(s): 増野敦信
  • Journal Title: Journal of the Japan Society of Powder and Powder Metallurgy Volume: 61 Issue: 1 Pages: 11-17
  • DOI: 10.2497/jjspm.61.11
  • NAID: 130003393301
  • ISSN: 0532-8799, 1880-9014
  • Peer Reviewed
• [Journal Article] 超高屈折率ガラス (2014)
  • Author(s): 増野敦信
  • Journal Title: 工業材料 Volume: 62 Pages: 70-71
• [Journal Article] Surface characterization of silica glass substrates treated by atomic hydrogen (2013)
  • Author(s): H. Inoue, A. Masuno, Y. Zhang, F. Utsuno, K. Koya, A. Fujinoki, H. Kawazoe
  • Journal Title: Materials Characterization Volume: 86 Pages: 283-289
  • DOI: 10.1016/j.matchar.2013.10.002
  • Peer Reviewed
• [Journal Article] Stabilization of metastable ferroelectric Ba12xCaxTi2O5 by breaking Ca-site selectivity via crystallization from glass (2013)
  • Author(s): A. Masuno, C. Moriyoshi, T. Mizoguchi, T. Okajima, Y. Kuroiwa, Y. Arai, J. Yu, H. Inoue, Y. Watanabe
  • Journal Title: Scientific Reports Volume: 3 Issue: 1 Pages: 3010-3010
  • DOI: 10.1038/srep03010
  • Peer Reviewed
• [Journal Article] Weak ferromagnetic transition with dielectric anomaly in hexagonal Lu0.5Sc0.5FeO3 (2013)
  • Author(s): A. Masuno, A. Ishimoto, C. Moriyoshi, N. Hayashi, H. Kawaji, Y. Kuroiwa, H. Inoue
  • Journal Title: Inorganic Chemistry Volume: 52 Issue: 20 Pages: 11889-11894
  • DOI: 10.1021/ic401482h
  • Peer Reviewed
• [Journal Article] Drastic connectivity change in high refractive index lanthanum niobate glasses (2013)
  • Author(s): A. Masuno, S. Kohara, A. C. Hannon, E. Bychkov, H. Inoue
  • Journal Title: Chemistry of Material Volume: 25 Issue: 15 Pages: 3056-3061
  • DOI: 10.1021/cm401236s
  • Peer Reviewed
• [Journal Article] The local structure and vibrational properties of BaTi2O5 glass revealed by a molecular dynamics simulation (2013)
  • Author(s): H. Inoue, A. Masuno, S. Kohara, Y. Watanabe
  • Journal Title: The Journal of Physical Chemistry B Volume: 117 Issue: 22 Pages: 6823-6829
  • DOI: 10.1021/jp401730f
  • Peer Reviewed
• [Journal Article] Atomic Scale Identification of Individual Lanthanide Dopants in Optical Glass Fiber (2013)
  • Author(s): T. Mizoguchi, S. D. Findlay, A. Masuno, Y. Saito, K. Yamaguchi, Y. Ikuhara, and H. Inoue
  • Journal Title: ACS Nano Volume: 7 Issue: 6 Pages: 5058-5063
  • DOI: 10.1021/nn400605z
  • Peer Reviewed
• [Journal Article] Network topology for the formation of solvated electrons in binary CaO-Al2O3 composition glasses (2013)
  • Author(s): J. Akola, S. Kohara, K. Ohara, A. Fujiwara, Y. Watanabe, A. Masuno, T. Usuki, T, Kubo, A, Nakahira, K. Nitta, T, Uruga, J. K. R. Weber, C. J. Benmore
  • Journal Title: Proceedings of the National Academy of Sciences Volume: 110 Issue: 25 Pages: 10129-10134
  • DOI: 10.1073/pnas.1300908110
  • Peer Reviewed
• [Journal Article] Cage Structure for the Formation of Solvated Electrons in CaO-Al₂O₃ Glasses (2013)
  • Author(s): 小原真司，尾原幸治，増野敦信，臼杵毅
  • Journal Title: Nihon Kessho Gakkaishi Volume: 55 Issue: 6 Pages: 356-361
  • DOI: 10.5940/jcrsj.55.356
  • NAID: 130003386014
  • ISSN: 0369-4585, 1884-5576
  • Peer Reviewed
• [Presentation] 無容器法による新規酸化物の合成とその機能 (2015)
  • Author(s): 増野敦信
  • Organizer: 粉体粉末冶金協会平成27年度秋季大会
  • Place of Presentation: 京都大学（京都府京都市）
  • Year and Date: 2015-11-12
  • Invited
• [Presentation] 修飾酸化物を多く含む二元系ホウ酸ガラスの物性と構造 (2015)
  • Author(s): 増野敦信，井上博之
  • Organizer: 第56回ガラスおよびフォトニクス材料討論会
  • Place of Presentation: ウインクあいち（愛知県名古屋市）
  • Year and Date: 2015-11-12
• [Presentation] 無容器プロセッシングにより合成した新規機能性ガラスの物性と構造 (2015)
  • Author(s): 増野敦信
  • Organizer: 日本鉄鋼協会高温プロセス部会ノーベルプロセッシングフォーラム
  • Place of Presentation: 東北大学（宮城県仙台市）
  • Year and Date: 2015-11-02
  • Invited
• [Presentation] Local structure around Er atoms in oxide glasses investigated by EXAFS and MD simulation (2015)
  • Author(s): A. Masuno
  • Organizer: The 9th International Conference on the Science and Technology for Advanced Ceramics
  • Place of Presentation: エポカルつくば（茨城県つくば市）
  • Year and Date: 2015-10-19
  • Int'l Joint Research / Invited
• [Presentation] Containerless Solidification of Undercooled SrO-Al2O3 Binary Melts (2015)
  • Author(s): A. Masuno, K. Kato, H. Inoue
  • Organizer: ICG annual meeting
  • Place of Presentation: バンコク（タイ）
  • Year and Date: 2015-09-20
  • Int'l Joint Research
• [Presentation] 無容器法により作製したガラスおよび高密度ガラスの物性と構造 (2015)
  • Author(s): 増野敦信
  • Organizer: SPRUC地球惑星科学研究会・高圧物質科学研究会・機能性材料ナノスケール原子相関研究会合同研究会
  • Place of Presentation: 九州大学（福岡県春日市）
  • Year and Date: 2015-09-12
  • Invited
• [Presentation] Optical and structural properties of densified silica glasses (2015)
  • Author(s): A. Masuno
  • Organizer: Workshop on Advanced Glasses with New Functionalities
  • Place of Presentation: 愛媛大学（愛媛県松山市）
  • Year and Date: 2015-08-04
  • Int'l Joint Research / Invited
• [Presentation] 無容器法が拓く新しいガラスの科学 (2015)
  • Author(s): 増野敦信
  • Organizer: 日本セラミックス協会ガラス部会夏季若手セミナー
  • Place of Presentation: メルパルク松山（愛媛県松山市）
  • Year and Date: 2015-08-02
  • Invited
• [Presentation] 無容器法によるガラスの合成とその機能 (2015)
  • Author(s): 増野敦信
  • Organizer: 第113回ニューガラスセミナー
  • Place of Presentation: 日本ガラス工業センター（東京都新宿区）
  • Year and Date: 2015-07-07
  • Invited
• [Presentation] Optical properties of permanently densified silica glass (2015)
  • Author(s): A. Masuno, N. Nishiyama, F. Sato, T. Taniguchi, H. Inoue
  • Organizer: The 2015 Joint Meeting of DGG-ACerS GOMD
  • Place of Presentation: マイアミ（アメリカ）
  • Year and Date: 2015-05-17
  • Int'l Joint Research
• [Presentation] 浮遊させたSrO-Al2O3大過冷却液体からの凝固過程 (2015)
  • Author(s): 増野敦信，加藤克佳，井上博之
  • Organizer: 日本セラミックス協会2015年年会
  • Place of Presentation: 岡山大学
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] Functional metastable phase formation from undercooled melt by containerless processing (2015)
  • Author(s): A. Masuno
  • Organizer: EMN Meeting on Ceramics 2015
  • Place of Presentation: FL, USA
  • Year and Date: 2015-01-26 – 2015-01-29
  • Invited
• [Presentation] Functional oxide glasses prepared by a levitation technique (2014)
  • Author(s): A. Masuno
  • Organizer: The 31th International Korea-Japan Seminar on Ceramics (KJ-Ceramics 31)
  • Place of Presentation: Changwon, Korea
  • Year and Date: 2014-11-26 – 2014-11-29
  • Invited
• [Presentation] 高密度シリカガラスの光学特性 (2014)
  • Author(s): 増野敦信，西山宜正，佐藤史雄，谷口尚，井上博之
  • Organizer: 第55回ガラスおよびフォトニクス材料討論会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2014-11-13 – 2014-11-14
• [Presentation] 無容器法が広げるガラスの世界 (2014)
  • Author(s): 増野敦信
  • Organizer: NGF若手懇談会
  • Place of Presentation: 東京
  • Year and Date: 2014-10-09
  • Invited
• [Presentation] Glass formation and physical properties of La2O3-Nb2O5-B2O3 high refractive index glasses prepared by containerless processing (2014)
  • Author(s): A. Masuno, H. Inoue
  • Organizer: the 12th ESG Conference
  • Place of Presentation: Parma, Italy
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] Er3+を添加したBaO-SiO2ガラスにおけるEr3+周囲の局所構造 (2014)
  • Author(s): 増野敦信，井上博之
  • Organizer: 日本セラミックス協会 第27回秋季シンポジウム
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-09 – 2014-09-11
• [Presentation] Optical properties of La2O3-B2O3 binary glasses prepared by containerless processing (2014)
  • Author(s): A. Masuno, T. Iwata, H. Inoue, Y. Watanabe
  • Organizer: 1st Joint Meeting of DGG - ACerS GOMD
  • Place of Presentation: Aachen, Gemarny
  • Year and Date: 2014-05-25 – 2014-05-30
• [Presentation] Transparent and high refractive index La2O3-WO3 glasses prepared by containerless processing (2013)
  • Author(s): A. Masuno, K. Yoshimoto, H. Inoue, Y. Watanabe
  • Organizer: the 23rd International Congress on Glass
  • Place of Presentation: Prague, the Czech Republic
• [Presentation] Structure of high refractive index La2O3-Nb2O5 glasses prepared by containerless processing (2013)
  • Author(s): A. Masuno, S. Kohara, H. Inoue
  • Organizer: 10th Pacific Rim Conference on Ceramic and Glass Technology
  • Place of Presentation: San Diego, USA
• [Presentation] 無容器法で合成した高充填密度ガラスの機械的性質
  • Author(s): 増野敦信，グスターボ ロサレス，井上博之，金 兌現，松本和也，小島誠治
  • Organizer: 応用物理学会2014春季講演会シンポジウム「割れないガラス」の最先端研究動向と新たな展開
  • Place of Presentation: 青山学院大学
  • Invited
• [Presentation] 無容器法による機能性準安定酸化物の合成
  • Author(s): 増野敦信
  • Organizer: JAIST-SPring-8連携講座シンポジウム「量子ビームを用いたマテリアルサイエンスの最前線」
  • Place of Presentation: 北陸先端科学技術大学院大学
  • Invited
• [Presentation] 無容器法により合成した機能性酸化物ガラスの構造と物性の相関
  • Author(s): 増野敦信
  • Organizer: SPRUC拡大研究会・SPring-8利用ワークショップ
  • Place of Presentation: SPring-8
  • Invited
• [Presentation] 高温対応可能なセラミックスコンデンサー用素材の開発
  • Author(s): 増野敦信
  • Organizer: &Techセミナー「MLCC向けチタン酸バリウムおよび酸化チタン粉体の粒子の超微粉化、粒径調整、高誘電率化」
  • Place of Presentation: 川崎
  • Invited
• [Presentation] 無容器浮遊法により合成した機能性酸化物の特性と構造
  • Author(s): 増野敦信
  • Organizer: セントラル硝子株式会社 社内セミナー
  • Place of Presentation: 松阪
  • Invited
• [Presentation] XAFSによる非晶質相と準安定結晶相の局所構造解析
  • Author(s): 増野敦信
  • Organizer: 第16回XAFS討論会
  • Place of Presentation: 東京大学
  • Invited
• [Presentation] 無容器浮遊法による機能性酸化物の合成
  • Author(s): 増野敦信
  • Organizer: 日本電気硝子株式会社 社内セミナー
  • Place of Presentation: 大津
  • Invited
• [Presentation] 無容器浮遊法による超高屈折率ガラスの開発
  • Author(s): 増野敦信
  • Organizer: 粉体粉末冶金協会平成25年度春季講演大会
  • Place of Presentation: 東京
  • Invited
• [Remarks] 超高弾性率ガラスの開発に成功 －無色透明で、薄くても丈夫なニューガラス－
  • URL: http://www.iis.u-tokyo.ac.jp/publication/topics/2015/20151016press1.pdf
• [Remarks] 東京大学生産技術研究所井上研究室
  • URL: http://www.vitreous.iis.u-tokyo.ac.jp/index.html
• [Remarks] 超高屈折率のカギは常識を覆すガラス構造にあり
  • URL: http://www.u-tokyo.ac.jp/public/public01_250803_j.html
• [Remarks] 新しい高温対応コンデンサ用材料の開発に成功
  • URL: http://www.u-tokyo.ac.jp/public/public01_251022_j.html
• [Remarks] 光ファイバーの中のレアアースが観えた！
  • URL: http://www.u-tokyo.ac.jp/public/public01_250530_j.html
• [Remarks] 超高屈折率のカギは常識を覆すガラス構造にあり －超高屈折率ガラス開発へ新たな道－
  • URL: http://www.spring8.or.jp/ja/news_publications/press_release/2013/130803/
• [Remarks] 超高屈折率ガラスを開発
  • URL: http://commune.spring8.or.jp/finding/140114.html
• [Patent(Industrial Property Rights)] シリカガラスの製造方法 (2014)
  • Inventor(s): 佐藤史雄，増野敦信，谷口尚，西山宜正
  • Industrial Property Rights Holder: 東京大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2014-11-12
• [Patent(Industrial Property Rights)] 光学ガラス (2014)
  • Inventor(s): 佐藤史雄，井上博之，増野敦信
  • Industrial Property Rights Holder: 東京大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2014-06-25
• [Patent(Industrial Property Rights)] 光学ガラス (2014)
  • Inventor(s): 佐藤史雄，井上博之，増野敦信
  • Industrial Property Rights Holder: 東京大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2014-06-25