Analysis for Mechanism of Crystal Orientation of Materials by Imposition of a High Magnetic Field

强磁场作用下材料晶体取向的机理分析

• 批准号: 11650761
• 负责人: ASAI Sigeo
• 金额: $ 2.37万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650761/
• 关键词: materials electromagnetic processing; magnetization force; high magnetic field; crystal orientation; refining; electromagnetic science; composite materials; material science

The crystal orientation is one of the most crucial factors to determine the electric, magnetic and mechanical properties, etc., so that the development of crystal alignment methods in each process has been desired. As in general, materials have different magnetic susceptibilities depending on the crystal orientation, the utilization of this property enables us to establish crystal alignment methods.Solidification process of Fe-C alloy, electrodeposition and vapordepositiopn processes and graphitization process of carbon fiber were carried out under a high magnetic field and the crystal orientation of deposited graphite in Fe-C alloy and deposited films obtained in the electrodeposition and vapordepositiopn process were studied and the strength of carbon fibers in the latter process was examined. The possibility of the crystal orientation has been found in the solidification and electrodeposition and vapordepositiopn processes and the carbon fibers have been strengthend in the graphitization process of carbon fiber.

晶体取向是决定电学、磁学和机械性能等最关键的因素之一，因此需要开发各工艺中的晶体取向方法。一般来说，材料根据晶体取向而具有不同的磁化率，利用这一特性使我们能够建立晶体取向方法。在高磁场下进行Fe-C合金的凝固过程、电沉积和气相沉积过程以及碳纤维的石墨化过程，以及Fe-C合金中沉积石墨的晶体取向以及在电沉积和沉积过程中获得的沉积膜。 研究了气相沉积工艺并检验了后一工艺中碳纤维的强度。在碳纤维的凝固和电沉积、气相沉积过程中发现了晶体取向的可能性，并在碳纤维的石墨化过程中对碳纤维进行了强化。

项目成果

Miwako Ito, Kensuke Sassa, Hiroyasu Ogawa, Masao Doyama, Shigehiko Yada, Shigeo Asai: "High Strengthening of PAN-based Carbon Fiber by Imposing of a High Magnetic Field in Graphitization Process"TANSO. 191. 37-41 (2000)

Miwako Ito、Kensuke Sassa、Hiroyasu Okawa、Masao Doyama、Shigehiko Yada、Shigeo Asai：“通过在石墨化过程中施加强磁场实现 PAN 基碳纤维的高强度”TANSO。

Mungyu Sung, Kensuke Sassa, Tetuya Tagawa, Shigeo Asai, Yasuhiro Ogawa, Masao Doyama, Shigehiko Yamadsa: "The Effect of Applying A High Magnetic Field on the Strength of Carbon Fibers in Crabonization Process"CAMP-ISIJ. Vol.13. 915 (2000)

Mungyu Sung、Kensuke Sassa、Tetuya Takawa、Shigeo Asai、Yasuhiro Okawa、Masao Doyama、Shigehiko Yamadsa：“在碳化过程中施加高磁场对碳纤维强度的影响”CAMP-ISIJ。

Masahiro Tahashi, Kensuke Sassa, Izumi Hirabayashi, Shigeo Asai: "Control of Crystal Orientation by Imposition of a High Magnetic Field in a Vapor-Deposition Process"Materials Trans. JIM. 41-8. 985-990 (2000)

Masahiro Tahashi、Kensuke Sassa、Izumi Hirabayashi、Shigeo Asai：“通过在气相沉积过程中施加高磁场来控制晶体取向”Materials Trans。

Masahiro Tahashi, Kensuke Sassa, Shigeo Asai: "Crystal Orientation of Thin Film Evaporated in a High Magnetic Field"Tran. Materials Research Soc. Japan. 25-1. 69-72 (2000)

Masahiro Tahashi、Kensuke Sassa、Shigeo Asai：“高磁场中蒸发薄膜的晶体取向”Tran。

村瀬政人,佐々健介,浅井滋生: "強磁場中でのFe-C合金の凝固"材料とプロセス. 12・4. 852 (1999)

村濑正人、笹健介、浅井茂雄：“强磁场中的铁碳合金凝固”12・4（1999）。