Effect of Containerless Solidification Process and under Microgravity Conditions on Bulk Amorphous Formation added Ceramics in Metal Based Alloys

无容器凝固过程和微重力条件对金属基合金中添加块状非晶陶瓷的影响

• 批准号: 12650740
• 负责人: NAGAYAMA Katsuhisa
• 金额: $ 2.24万
• 依托单位: Shibaura Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650740/
• 关键词: Containerless Processing; Homogeneous Nucleation; Melt Droplet Melting and Solidification; La55Al25Cu10Ni5Co5 added SiC; Nucleation Control; Microgravity Experiment (Drop Tower); Heterogeneous Nucleation; Bulk Amorphous; 過冷液体; 異質核生成実験; ガスジェット型電磁

La55Al25Cu10Ni5Co5 and 0.1-0.5% SiC whiskers added melt droplet samples were splidified by two melting and solidification process. SiC 0.1% added melt droplet sample was solidified on quartz plate. As aresult,the undercooling increases and nucleation temperature decreases was obtained. Furthermore, the bulk amorphous formation behavior was shown clearly. Also, the melt drop solidification experiments under microgravity (drop tower, JAMIC experiment) and 1g conditions by using the new melt droplet solidification apparatus. The main results, heterogeneous nucleation experiment that used the trigger was obtained measurements undercooling behavior in local area. And the relation between the undercooling and microstructure in the interface the samples that contacted it with the SiC plate showed the increase and microstructure formation of high undercooling. Furthermore, wetting phenomena with the plate was coherent in SiC contact interface. The above result, the new nonequilibrium nucleation phenomena based on the static undercoolig that is not able to explain in a homogenous nucleation theory and related on containerless processing

采用两种熔融凝固工艺制备了La_（55）Al_（25）Cu_（10）Ni_（55）Co_5和0.1- 0.5%SiC晶须的熔滴试样。将添加0.1% SiC的熔滴试样在石英板上固化。结果表明，过冷度增大，形核温度降低。此外，体非晶形成行为被清楚地显示。并利用新型熔滴凝固装置进行了微重力（落塔，JAMIC实验）和1g条件下的熔滴凝固实验。主要结果是，利用该触发器进行的非均匀形核实验测量了局部区域的过冷度。过冷度与界面组织的关系表明，与SiC板接触的试样，深过冷度增加，界面组织形成。此外，润湿现象与板是连贯的SiC接触界面。上述结果表明，在静态过冷度基础上出现了一种新的非平衡形核现象，这种现象不能用均匀形核理论来解释，而与无容器工艺有关

项目成果

永山 勝久: "無容器プロセスによる非平衡相の核生成に対するトリガー物質添加および微小重力環境の効果"文科省 平成12年度 ハイテク・リサーチ・センター 芝浦工業大学 先端工学機構 2000年度 研究成果報告書. 283-286 (2001)

永山克久：“触发物质添加和微重力环境对无容器工艺非平衡相成核的影响” 文部科学省 2000 年 高科技研究中心 芝浦工业大学 先端技术研究所 2000 年 研究成果报告。283-286（2001）

Katauhisa,NAGAYAMA, Hiroaki,SATO: "Microstructure and Magnetic Properties of Nd-Fe-Al Ternary High He Type Metastable Phase by Using Levitation Melting and Solidification Process."Collected Abstracts of 2003 Spring Meeting (the 132th) of the Japan Institu

Katauhisa，NAGAYAMA，Hiroaki，SATO：“利用悬浮熔化和凝固过程的 Nd-Fe-Al 三元高 He 型亚稳相的微观结构和磁性。”日本学会 2003 年春季会议（第 132 届）摘要摘要

Katsuhisa,NAGAYAMA: "Gravity Effect and Trigger Effect of Metal Alloys Undercooling Solidification."The Research of High-Tech Research Center, Shibaura Institute of Technology.. 803-852 (2002)

Katsuhisa,NAGAYAMA：“金属合金过冷凝固的重力效应和触发效应。”芝浦工业大学高科技研究中心的研究.. 803-852 (2002)

永山勝久: "電磁浮遊溶融プロセスを用いたNd-Fe-Al3元高保磁力強磁性非平衡相の構造と磁性"日本金属学会2003年度(第132回)春期講演大会概要. 398 (2003)

Katsuhisa Nagayama：“采用电磁浮动熔炼工艺的Nd-Fe-Al三元高矫顽力铁磁非平衡相的结构和磁性”日本金属学会2003年（第132届）春季会议摘要398（2003）。

K.Nagayama et.al.: "Containerless Solidification of Zr63Al10.5Ni10Cu16 Alloys Using a Short Drop Tubu."The 2000 TMS Annual Meeting., Nashvill.. (in press.). (2000)

K.Nagayama 等人：“使用短滴管对 Zr63Al10.5Ni10Cu16 合金进行无容器凝固。”2000 年 TMS 年会，纳什维尔（正在出版）。