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Construction and application of a small-sized spray apparatus utilizing electrothermal explosion of spray powders to a study on the production of refractory spray coatings

Research Project

Project/Area Number 08555169
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Material processing/treatments
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

TAMURA Hideki  Interdisciplinary Graduate School of Science and Engineering, Associate Professor, 大学院・総合理工学研究科, 助教授 (30188437)

Co-Investigator(Kenkyū-buntansha) AKASHI Tamotsu  Sumitomo Coal Mining, Co., Ltd., Hokkaido Technical Laboratory, Senior Researche, 北海道技術研究所, 主任技師
ISHIYAMA Osamu  Materials and Structures Laboratory, Research Associate, 応用セラミックス研究所, 教務職員
HORIOKA Kazuhiko  Interdisciplinary Graduate School of Science and Engineering, Associate Professo, 大学院・総合理工学研究科, 助教授 (10126328)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥6,200,000 (Direct Cost: ¥6,200,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥4,900,000 (Direct Cost: ¥4,900,000)
KeywordsSpray / Refractory ceramics / Refractory / electrical explosion / electrothermal explosion / jet
Research Abstract

A small-sized apparatus utilizing the electrothermal explosion of electrically conductive powders was constructed for the production of refractory spray coatings. It sprayd carbide, boride and nitride ceramic powders with melting points higher than 2800K.Thus, some novel results were found below ;
1. Spray of tungsten carbide and tantalum carbide : In order to produce dense and adhesive coatings of these carbides, the flow density of the ceramic jets was increased. Then the mixing of sprayd ceramics and substrate metals ranged 30 to 50mum. In addition, the top coat of monolayr ceramics was obtained over the mixing layr. Such a graded coating was expected to be highly adhesive on metal substrates.
2. Spray of titanium boride and nitride : The increase of energies supplied to these ceramic powders resulted in the dense coatings with mixing layr of the ceramics and metal substrates. The graded coatings with top monolayr ceramics were obtained by the repetition of the spray. However, nonstoichiometry of nitrogen happened in the nitride.
3. Composite coating by reactive spray : The electrothermal explosion of a mixed powder of titanium and hexagonal boron nitride resulted in the composite coating of titanium boride and nitride ceramics. Such ceramics mixed with the surface of metal substrates.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Yoshinori Ikeda: "Refractory boride and nitride ceramic coatings sprayed by ceramic jets" The review of High Pressure Science and Technology(日本高圧力学会誌特別号). (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takatori Soda: "Refractory carbide Coatings Sprayed by Electrothermal Explosion of Conductive-Ceramic Powders" Proc.15th International Thermal Spray Conference and Exhibition. (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 池田 吉謙: "TiB2,TiN皮膜の特徴、及びTi-BN混合粉体を用いた複合皮膜の形成" 第6回溶射総合討論会講演概要. 31-32 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 雙田 飛鳥: "電熱爆発溶射法による高融点炭化物皮膜の組織と組成制御" 第6回溶射総合討論会講演概要. 33-34 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 児玉 賢彦: "高速セラミックジェットによるTi-B-N系溶射コーティングと皮膜組織" 第36回セラミックス基礎科学討論会. 106-107 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 板谷 旬展: "高速セラミックジェットによる高融点炭化物溶射コーティングと皮膜組織" 第36回セラミックス基礎科学討論会. 108-109 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 児玉 賢彦: "高速セラミックジェットの観察とホウ化物および窒化物チタン皮膜の生成" 平成9年度衝撃波シンポジウム講演論文集. 219-222 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 板谷 旬展: "高速セラミックジェットを用いた高融点炭化物セラミックス粉体の溶射コーティング" 平成9年度衝撃波シンポジウム講演論文集. 67-70 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshinori Ikeda, et al.: "Refractory boride and nitride ceramic coatings sprayd by ceramic jets" The review of High Pressure Science and Technology. (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takatori Soda, et al.: "Refractory carbide coatings sprayd by electrothermal explosion of conductive-ceramic powder" Proc.15th International Thermal Spray Conference and Exhibition. (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshinori Ikeda, et al.: "Property of TiB2 and TiN coatings, and the composite coatings obtained from Ti-BN powders by electrothermal explosion of powder" Proc.6th Domestic Conference on Thermal Spray Technology. 31-32 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takatori Soda, et al.: "Control of structure and chemical composition of refractory carbide ceramic coatings by electrothermal explosion spraying" Proc.6th Domestic Conference on Thermal Spray Technology. 33-34 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takahiko Kodama, et al.: "Thermal spray coatings of the system of Ti-B-N formed by high-velocity ceramic jets and observation of coating structure" Proc.36th Meeting on Basic Science of Ceramics. 106-107 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Masanobu Itaya, et al.: "Thermal spray coatings of refractory carbide by high velocity ceramic jet and observation of coating structure" Proc.36th Meeting on Basic Science of Ceramics. 108-109 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takahiko Kodama, et al.: "Observation of high-velocity ceramic jets and the application to thermal spray coatings of titanium boride and nitride" Proc.Symp.SHOCK-WAVES,JAPAN,'97. 219-222 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Masanobu Itaya, et al.: "Thermal spray coatings of refractory carbide ceramics by high velocity ceramic jet" Proc.Symp.SHOCK-WAVES,JAPAN,'97. 67-70 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshinori Ikeda: "Refractory boride and nitride ceramic coatings sprayed by ceramic jets" The review of High Pressure Science and Technology (日本高圧力学会誌特別号). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takatori Soda: "Refractory carbide Coatings Sprayed by Electrothermal Explosion of Conductive-Ceramic Powders" Proc.15th International Thermal Spray Conference and Exhibition. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 池田吉謙: "TiB_2,TiN皮膜の特徴、及びTiーBN混合粉体を用いた複合皮膜の形成" 第6回溶射総合討論会講演概要. 31-32 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 雙田飛鳥: "電熱爆発溶射法による高融点炭化物皮膜の組織と組成制御" 第6回溶射総合討論会講演概要. 33-34 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 児玉賢彦: "高速セラミックジェットによるTi-B-N系溶射コーティングと皮膜組織" 第36回セラミックス基礎科学討論会. 106-107 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 板谷旬展: "高速セラミックジェットによる高融点炭化物溶射コーティングと皮膜組織" 第36回セラミックス基礎科学討論会. 108-109 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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