Motofumi Ohki

Profile Information

Affiliation: Associate Professor, Faculty of Engineering Department of Engineering, Niigata University
: (Concurrent)Associate Professor, Graduate School of Science and Technology Advanced Materials Science and Technology Science and Technology for Materials

Degree: 修士(工学)(長岡技術科学大学)
博士(工学)(長岡技術科学大学)

Other name(s) (e.g. nickname): M. OHKI
Researcher number: 50293204
J-GLOBAL ID: 200901009850904117
researchmap Member ID: 1000223203

External link: http://mohki.eng.niigata-u.ac.jp/

Research Interests

Research Areas

Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Machine materials and mechanics / 材料評価学・材料強度学

Research History

Apr, 2017 - Present

Associate Professor, Faculty of Engineering Department of Engineering, Niigata University
Nov, 2009 - Present

Associate Professor, Graduate School of Science and Technology Advanced Materials Science and Technology Science and Technology for Materials, Niigata University
Nov, 2009 - Mar, 2017

Associate Professor, Faculty of Engineering Department of Material Science and Technology Material Engineering, Niigata University
Apr, 2007 - Oct, 2009

Assistant Professor, Faculty of Engineering Department of Material Science and Technology Material Engineering, Niigata University
Apr, 1997 - Mar, 2007

Assistant, Faculty of Engineering Department of Material Science and Technology Material Engineering, Niigata University

Committee Memberships

Jun, 2017 - Present

第37期代議員, （一社）日本溶射学会
May, 2017 - Present

編集部会長, 日本材料試験技術協会
May, 2013 - Present

常任理事, 日本材料試験技術協会
Apr, 2005 - Present

北陸信越支部常議員, （公社）日本材料学会
Apr, 2009 - Mar, 2013

理事, 日本材料試験技術協会
Dec, 2008 - Oct, 2010

M&M2010材料力学カンファレンス実行委員, （一社）日本機械学会
Dec, 2009 - Mar, 2010

北陸信越支部第47期総会・講演会実行委員, （一社）日本機械学会
May, 2007 - Mar, 2009

協会誌4月号編集委員, 日本材料試験技術協会
Apr, 2007 - Apr, 2008

中部支部評議員, （一社）日本溶射学会
May, 2007 - Nov, 2007

第15回機械材料・材料加工技術講演会実行委員, （一社）日本機械学会
Sep, 2006 - Sep, 2007

東部支部代議員, （一社）溶接学会
Oct, 2005 - May, 2006

第55期通常総会・学術講演会実行委員, （公社）日本材料学会

Awards

Apr, 2017

日本材料試験技術協会協会賞, 炭素繊維強化熱可塑性プラスチック材の曲げ試験による機械的特性評価および破壊挙動解析, 日本材料試験技術協会

大木基史, 森下一, 高岡謙伍, 齋藤浩
Apr, 2009

日本材料試験技術協会協会賞, 日本材料試験技術協会

石橋達弥, 大木基史, 吉川裕輔
Apr, 2005

日本材料試験技術協会協会賞, 日本材料試験技術協会

石橋達弥, 大木基史, 高木智史, 藤塚将行
May, 2002

日本溶射協会論文賞, 日本溶射協会

大木基史, 武藤睦治, 高橋雅士, 石橋達弥
May, 2000

日本溶射協会奨励賞, 日本溶射協会

大木基史

Papers

Interfacial Strength of Plasma-sprayed Hydroxyapatite Coatings

M. Ohki, S. Takahashi, R. Jinnai, T. Hoshina

Journal of Thermal Spray Technology, 29(5) 1119-1133, Jun, 2020 Peer-reviewedLead authorCorresponding author
プラズマ溶射ハイドロキシアパタイトコーティング材の界面強度に及ぼす基材表面粗さおよび後熱処理の影響

大木基史, 神内蘭, 星名信輝, 北代翔人, 湯本康太, 齋藤浩

溶射, 57(1) 3-12, Jan, 2020 Peer-reviewedLead authorCorresponding author
Influence of surface roughness on liquid droplet impingement erosion

K. FUJISAWA, M. OHKI, N. FUJISAWA

Wear, 432-433 202955, Aug, 2019 Peer-reviewed
Interfacial Strength of Plasma-sprayed Hydroxyapatite Coatings

M. OHKI

Conference Proceedings of International Thermal Spray Conference and Exposition 2019, 93-98, May, 2019 Lead authorCorresponding author
Proposal for ISO 14577: Metallic materials – Instrumented Indentation test for hardness and materials parameters – Part 1: Test method (Verification of the calculation of Young's modulus for wide range of materials and test forces ranging from micro to ma

T. ISHIBASHI, Y. YOSHIKAWA, M. YAMAMOTO, K. MIYAHARA, T. YAMAMOTO, M. OHKI, S. KATAYAMA

Journal of Material Testing Research Association of JAPAN, 62(3) 20-28, Jul, 2017 Peer-reviewed
Proposal for ISO 14577: Metallic materials – Instrumented Indentation test for hardness and materials parameters – Part 1: Test method (Verification of the calculation of Young's modulus for wide range of materials and test forces with already calibrated

T. ISHIBASHI, Y. YOSHIKAWA, S. KATAYAMA, K. MIYAHARA, M. OHKI, T. YAMAMOTO, M. YAMAMOTO

Journal of Material Testing Research Association of JAPAN, 62(2) 2-11, Apr, 2017 Peer-reviewed
炭素繊維強化熱可塑性プラスチック材の曲げ試験による機械的特性評価および破壊挙動解析

大木基史, 森下一, 高岡謙伍, 齋藤浩

材料試験技術, 61(3) 43-49, Sep, 2016 Peer-reviewedLead authorCorresponding author
ヤコウガイ蓋の硬さ特性評価 —琉球列島先史時代遺跡から発掘された貝器の硬さ等に関する一考察—

基昭夫, 神雅彦, 大木基史

材料試験技術, 60(4) 32-37, Oct, 2015 Peer-reviewedLast author
拡散接合を伴うWC薄膜の形成および機械的特性評価

大木基史, 鈴木智之, 齋藤浩

材料試験技術, 59(3) 29-39, Jul, 2014 Peer-reviewedLead authorCorresponding author
Theoretical and Experimental Study on Nanoindentation Test in Diamond (2nd. Evaluation and discussion about theoretical and experimental indentation curves for a single crystal Diamond planes (111) and (100), and confirmation for usefulness of Nanoindenta

Tatsuya ISHIBASHI, Yusuke YOSHIKAWA, Shigeo KATAYAMA, Motofumi OHKI, Satoshi TAKAGI, Takashi YAMAMOTO, Kensuke MIYAHARA, Masayuki YAMAMOTO

Journal of Material Testing Research Association of JAPAN, 59(2) 2-16, Apr, 2014 Peer-reviewed
Theoretical and Experimental Study on Nanoindentation Test in Diamond (1st. Comparison between theoretical and experimental indentation curves for Diamond and those for Tungsten and Fused silica)

Tatsuya ISHIBASHI, Yusuke YOSHIKAWA, Shigeo KATAYAMA, Satoshi TAKAGI, Motofumi OHKI

Journal of Material Testing Research Association of JAPAN, 58(2) 15-22, Apr, 2013 Peer-reviewed
Evaluation of Adhesion for Plasma-sprayed Hydroxyapatite Coatings by Scratch Test

58(1) 3-11, Jan, 2013 Peer-reviewedLead authorCorresponding author
Proposal for ISO 14577: Metallic materials – Instrumented Indentation test for hardness and materials parameters – Part 1: Test method (3rd. Influence on computed Young’s modulus by different indenter’s tip profile and material property)

Motofumi OHKI, Tatsuya ISHIBASHI, Shigeo KATAYAMA, Satoshi TAKAGI, Yusuke YOSHIKAWA, Masayuki FUJITSUKA, Satoshi IWATSUBO

Journal of Material Testing Research Association of JAPAN, 57(4) 140-149, Oct, 2012 Peer-reviewedLead authorCorresponding author
Proposal for ISO14577 : Metallic materials - Instrumented Indentation test for hardness and materials parameters - Part 1: Test method (2nd. Discussion for relationships between maximum projected area and real maximum contact depth, and computing method o

Motofumi OHKI, Tatsuya ISHIBASHI, Satoshi TAKAGI, Yusuke YOSHIKAWA, Shigeo KATAYAMA, Satoshi IWATSUBO, Masayuki FUJITSUKA

Journal of Material Testing Research Association of JAPAN, 56(2) 64-75, Apr, 2011 Peer-reviewedLead authorCorresponding author
Proposal for ISO14577 : Metallic materials - Instrumented Indentation test for hardness and materials parameters - Part 1: Test method (1st. Re-evaluation of unloading curve’s profile at neighborhood of unloading starting point and discussion of real maxi

Tatsuya ISHIBASHI, Motofumi OHKI, Satoshi TAKAGI, Yusuke YOSHIKAWA, Shigeo KATAYAMA, Satoshi IWATSUBO, Masayuki FUJITSUKA

Journal of Material Testing Research Association of JAPAN, 56(2) 54-63, Apr, 2011 Peer-reviewed
自動車シートの座面強度の実験的・理論的解析

本宮嘉弘, 石橋達弥, 大木基史, 山内春夫

材料試験技術, 55(2) 26-32, Apr, 2010 Peer-reviewed
計装化押込み試験によるしゃ熱コーティング材のトップコートヤング率評価

大木基史, 石橋達弥

材料試験技術, 55(2) 11-19, Apr, 2010 Peer-reviewedLead authorCorresponding author
Correction Method of Young's Modulus Measurement for Top Coat of Thermal Barrier Coatings by Instrumented Indentation Test with Spherical Indenter

Motofumi OHKI, Tatsuya ISHIBASHI

Journal of Solid Mechanics and Materials Engineering, 4(2) 286-293, Mar, 2010 Peer-reviewedLead authorCorresponding author
Collaborative Research on Adhesion Strength of Thermal Barrier Coatings in JSMS

OKAZAKI Masakazu, ITOH Akihiro, FUKANUMA Hirotaka, OHNO Naoyuki, KANEKO Hideaki, KAWAMURA Masashi, YAMAZAKI Yasuhiro, NAMBA Kouichi, OGAWA Kazuhiro, OHKI Motofumi, FUJIYAMA Kazunari, WAKI Hiroyuki, ARAI Masayuki, SEKIHARA Masaru

Journal of Solid Mechanics and Materials Engineering, 4(2) 252-263, 2010 Peer-reviewed
衝突実験によるシート座面変形とシートベルト損傷に関する研究−シート座面強度に関する安全規準の提案−

本宮嘉弘, 石橋達弥, 山内春夫, 大木基史

日本交通科学協議会誌, 9(1) 25-34, Jun, 2009 Peer-reviewed

Misc.

医工連携とコーティング技術

大木基史

溶射技術, 37(3), Jan, 2018 Invited
Mechanical properties evaluation and fracture behavior analysis of Carbon-Fiber-Reinforced Thermo-Plastics by bending test

61(3) 159-165, Jul, 2016
Evaluation of hardness and indentation modulus of lid of great green turban : A study of prehistoric shell axes excavated in Ryukyu Islands

60(4) 244-249, Oct, 2015
炭素繊維強化熱可塑性プラスチックの製品開発

森下一, 大木基史

材料試験技術, 60(3) 42-48, Jul, 2015
記載が望まれる計装化押込み試験用参照試験片の機械的特性と圧子の形状

石橋達弥, 吉川裕輔, 高木智史, 片山繁雄, 大木基史

材料試験技術, 60(2) 11-19, Apr, 2015
ハイドロキシアパタイト（HAp）コーティングの形成および密着強度特性評価

大木基史

メカニカル・サーフェス・テック, 2015年(2月) 16-18, Feb, 2015 Invited
203 Adhesive strength of hydroxyapatite coatings

OHKI Motofumi, YANO Kazumi, KONISHI Kenta, YOSHIZAWA Atsushi, SAITOH Hiroshi

Materials and processing conference, 2013(21) "203-1"-"203-4", Nov 8, 2013
556 Formation and evaluation of mechanical properties for WC-Ni plating films by wet plating

FUKUDA Kenichirou, SUZUKI Tomoyuki, SAITO Hiroshi, OHKI Motofumi

Yamanashi district conference, 2013 142-143, Oct 26, 2013
553 Formation and evaluation of mechanical properties for hydroxyapatite thin film by sol-gel method

KONISHI Kenta, YANO Kazumi, SAITO Hiroshi, OHKI Motofumi

Yamanashi district conference, 2013 136-137, Oct 26, 2013
552 Evaluation of adhesion for Plasma-sprayed Hydroxyapatite coatings by Scratch Test

YANO Kazumi, SAITO Hiroshi, OHKI Motofumi

Yamanashi district conference, 2013 134-135, Oct 26, 2013
ナノインデンテーション試験における新しいヤング率算出方法の理論的および実験的検討

大木基史

材料試験技術, 58(2) 31-40, Apr, 2013
Report on Hardness Sectional Committee

58(2) 118-123, Apr, 2013
Adhesion Strength on Plasma-Sprayed HAp Coating Materials

OHKI Motofumi, YANO Kazumi, SAITOH Hiroshi

Materials and processing conference, 20 3p, Nov 30, 2012
216 Damage evaluation method by bending test for HOT-DIP tin-plated materials

ARAI Misato, KIMURA Ayako, SAITO Hiroshi, OHKI Motofumi

Materials and processing conference, 2010(18) "216-1"-"216-3", Nov 27, 2010
Analysis of the strength of car seats concerning seat belt injuries

Journal of Material Testing Research Association of Japan, 55(2) 76-82, Apr, 2010
Evaluation of top coat Young's modulus of thermal barrier coatings by instrumented indentation test

Journal of Material Testing Research Association of Japan, 55(2) 61-69, Apr, 2010
224 Influence of high temperature exposure for Young's modulus and porosity of topcoat of thermal barrier coatings

FUNABASHI Dai, OHKI Motofumi, ISHIBASHI Tatsuya, KOBAYASHI Takumi

Materials and processing conference, 2009(17) "224-1"-"224-2", Nov 6, 2009
223 Influence of high temperature exposure for thermal conductivity and porosity of topcoat of thermal barrier coatings

KOBAYASHI Takumi, OHKI Motofumi, ISHIBASHI Tatsuya, FUNABASHI Dai

Materials and processing conference, 2009(17) "223-1"-"223-2", Nov 6, 2009
230 Assessment procedure of adhesion strength for HOT-DIP tin plated material

ARAI Misato, OHKI Motofumi, ISHIBASHI Tatsuya, SUZUKI Watarau

Materials and processing conference, 2009(17) "230-1"-"230-2", Nov 6, 2009
227 Influence of heat-treatment on surface structure of tungsten coated cast iron

ISHIDA Naoya, OHKI Motofumi, ISHIBASHI Tatsuya

Materials and processing conference, 2009(17) "227-1"-"227-2", Nov 6, 2009

Books and Other Publications

Ceramic interfaces: properties and applications

J. LIRA –, OLIVARES, M. OHKI, Y. MUTOH, Y. KINEMUCHI, M. TAKAHASHI (Role: Joint author, 共著部分 p. 297-313，共著のため本人分担部分抽出不可能)

IOM Communications, Oct, 1998

Teaching Experience

Professional Memberships

Research Projects

ハイドロキシアパタイト（HAp）コーティング材の密着強度特性評価

Apr, 2011 - Present
拡散熱処理によるWC系硬質薄膜形成手法の確立およびその機械的特性評価

Apr, 2006 - Present
遮熱コーティング材（TBCs）の機械的特性評価手法の確立

Apr, 2003 - Present
計装化押込み試験による材料の弾性特性評価手法の確立

Apr, 1997 - Present
遮熱コーティング材（TBCs）の熱サイクル損傷特性および遮熱特性評価

Apr, 1993 - Present
計装化押込み試験による多孔質コーティング材料の弾性係数測定手法の確立

科学研究費助成事業, 日本学術振興会, Apr, 2016 - Mar, 2019

大木基史
立方晶窒化ホウ素（cBN）含有硬質薄膜形成手法の確立およびその機械的特性評価

Apr, 2015 - Mar, 2018
炭素繊維強化熱可塑性プラスチック材（CFRTP）の機械的特性評価

Apr, 2014 - Mar, 2018
高温条件下でのHOT-DIPすずめっき材の機械的特性評価

共同研究, Apr, 2002 - Mar, 2013
しゃ熱コーティング材料の損傷検出および評価システムの構築

科学研究費助成事業, Oct, 2000 - Mar, 2002

Industrial Property Rights

特願2020-187486 高硬度・耐磨耗性部材および高硬度・耐磨耗性部材の製造方法

大木基史
特開122164 シングルセンサー式押込み試験システム

石橋達弥, 大木基史, 武士俣斎宏, 佐藤隼輔

Social Activities

製造現場で必要な数学・物理・化学の基礎講座

Lecturer

（一財）燕三条地場産業振興センター, （一財）燕三条地場産業振興センター, Jun, 2014 - Present
第98回界面接合研究委員会

Lecturer

（一社）溶接学会, Jan, 2015
シンポジウム「医療分野におけるプラズマ溶射皮膜の現状と課題」

Panelist, Lecturer

（一社）日本溶射学会, 第99回（2014年春季）全国講演大会, Jun, 2014
第12期・第4回溶射技術研究会

Lecturer

日本溶射学会中部支部, Jan, 2014
第4回ハイパーいこう会

Guest, Lecturer

新潟大学産学連携推進機構, Sep, 2013
Third Japanese-German TBC Workshop

Guest

May, 2013
平成23年度高度技術研修

Lecturer

Sep, 2011
新潟大学地域懇談会

Guest, Lecturer

Jan, 2009
直江津高校出張講義

Guest, Lecturer

Dec, 2008

Media Coverage

新潟大学地域懇談会（佐渡会場）

新潟大学産学地域連携推進センター，佐渡市，佐渡産業創造塾，他, Mar, 2013

Profile Information

Research Interests

Research Areas

Research History

Committee Memberships

Awards

Papers

Misc.

Books and Other Publications

Teaching Experience

Professional Memberships

Research Projects

Industrial Property Rights

Social Activities

Media Coverage

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