高温その場TEM観察によるナノ粒子のユニークな挙動(ICCCI2025・第60回夏期シンポジウム特集 持続可能な開発目標に資する界面科学と粉体工学)

• 資料種別: 記事
• タイトル: 高温その場TEM観察によるナノ粒子のユニークな挙動
• 著者・編者: 中野 裕美
• シリーズタイトル: ICCCI2025・第60回夏期シンポジウム特集 持続可能な開発目標に資する界面科学と粉体工学
• 著者標目: 中野 裕美
• 並列タイトル等: In-Situ High Temperature TEM Observation of Unique Behaviors for Nano Grains
• タイトル（掲載誌）: 粉体工学会誌 = Journal of the Society of Powder Technology, Japan / 粉体工学会 編
• 巻号年月日等（掲載誌）: 63(7)=686:2026
• 掲載巻: 63
• 掲載号: 7
• 掲載通号: 686
• 掲載ページ: 297-300
• 掲載年月日（W3CDTF）: 2026
• ISSN（掲載誌）: 0386-6157
• ISSN-L（掲載誌）: 0386-6157
• 出版事項（掲載誌）: 京都 : 粉体工学会
• 出版地（国名コード）: JP
• 本文の言語コード: jpn
• 件名標目: In-situ high temperature TEM; Nano grains; Phase transition; Grain growth
• NDLC: ZP5
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z17-38
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 034848680; http://id.ndl.go.jp/bib/034848680
• 整理区分コード: 632

• 要約等: <p>In-situ observations using high-temperature transmission electron microscopy (TEM) are a promising technique for obtaining new findings and developing phenomenological theory for ceramic materials at high temperatures. Through observations of the grain growth of BaTiO₃, we calculate the grain-boundary diffusion coefficient, which is an important parameter controlling the sinterability of ceramics. Observations of the shrinkage process of Ba₅Nb₄O₁₅, as well as simulations, indicate that high energy and low diffusivity at the grain boundary make grains vanish while maintaining a truncated spherical shape. Finally, observations of the structural changes in layered perovskite BaGd₂Mn₂O₇ reveal a first-order phase transition that has not been previously reported.</p>
• DOI: 10.4164/sptj.63.297
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>In-situ observations using high-temperature transmission electron microscopy (TEM) are a promising technique for obtaining new findings and developing phenomenological theory for ceramic materials at high temperatures. Through observations of the grain growth of BaTiO₃, we calculate the grain-boundary diffusion coefficient, which is an important parameter controlling the sinterability of ceramics. Observations of the shrinkage process of Ba₅Nb₄O₁₅, as well as simulations, indicate that high energy and low diffusivity at the grain boundary make grains vanish while maintaining a truncated spherical shape. Finally, observations of the structural changes in layered perovskite BaGd₂Mn₂O₇ reveal a first-order phase transition that has not been previously reported.</p>
• DOI: 10.4164/sptj.63.297; https://doi.org/10.4164/sptj.63.297
• 関連情報（URI）: http://id.ndl.go.jp/bib/034848680; https://ndlsearch.ndl.go.jp/books/R000000004-I034848680; https://www.jstage.jst.go.jp/article/sptj/63/7/63_63.297/_pdf
• 参照: <i>In situ</i> electron tomography for the thermally activated solid reaction of anaerobic nanoparticles; https://cir.nii.ac.jp/crid/1360021390766034048; <i>In Situ</i> Measurement of Phase Transition of Layered Perovskite BaLn₂Mn₂O₇; https://cir.nii.ac.jp/crid/1362825893525635072; In-situ observation of phase transformations in layered perovskite BaEu2Mn2O7; https://cir.nii.ac.jp/crid/1361975287276697088; Grain shrinkage driven by surface and grain boundary energy in Ba5Nb4O15 powder; https://cir.nii.ac.jp/crid/1361137045932215168; <i>In situ</i> Transmission Electron Microscopy Observation of Multiple Phase Transition in BaGd ₂ Mn ₂ O ₇; https://cir.nii.ac.jp/crid/1363951794797847552; Thermal Behavior of BaTiO ₃ Particles Synthesized by Plasma Chemical Vapor Deposition; https://cir.nii.ac.jp/crid/1363670320129391104; Ba-Nb エトキシドから Ba₅Nb₄O₁₅ の結晶化過程の微構造的考察; https://cir.nii.ac.jp/crid/1390282680225964160; Octahedral tilting phases in perovskite-like crystals with slabs containing an even number of octahedral layers; https://cir.nii.ac.jp/crid/1362825895301573760
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org
• 書誌ID（NDLBibID）: 034848680; http://id.ndl.go.jp/bib/034848680