采用特制的冷却结晶器制备出了细小等轴晶的钯铁合金铸锭，利用差热分析研究了钯铁合金的有恅化转变规律，以及有恅化转变对合金电学性能的影响，结果表明，Fe含量为15%~25%的PdFe合金中存在Pd3Fe有恅相，合金在750~850℃范围内发生有恅相转变，保温9 h有恅化转变基本完成，Φ0.02 mm的Pd3Fe有恅相合金细丝的电阻温度系数高达(6150~7650)×10-6/℃。
The Pd-Fe alloy ingot with fine and equiaxed grains was prepared using the special solidification method. The orderly transition rules of PdFe alloy with different compositions were studied by differential thermal analysis. The relationship between the orderly transition and electrical properties of PdFe alloy was also studied. There was Pd3Fe ordered phase transition in the PdFe alloys with 15%~25%Fe and at 750~850℃ for 9 hours. The fine wire of 0.02 mm in diameter of Pd3Fe ordered phase has high temperature coefficient of resistance (6150~7650)×10-6/℃.
参考文献
| [1] | 黎鼎鑫;张永俐;袁弘鸣.贵金属材料学[M].长沙:中南工业大学出版社,1991:27. |
| [2] | Yoshio Ono;Masami Numata .Contact combustion type carbon monoxide sensor[P].UK,2270762,1994-03-23. |
| [3] | Sugai Takashi;Takahashi Ikuo .Manufacture on contact combustion type CO gas sensor[P].JP,1996-15204,1996-01-19. |
| [4] | Yoshio Ono .Contact combustion type CO gas sensor and its manufacture[P].JP,1992-140656,1992-05-14. |
| [5] | Okamoto H.Phase Diagrams of Binary Iron Alloys[M].Park:ASM International,1993:341-349. |
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