贵金属
貴金屬
귀금속
PRECIOUS METALS
2014年
1期
43-47
,共5页
尹俊美%万吉高%黄炳醒%廖微%武海军%杨丽娟%申丽琴
尹俊美%萬吉高%黃炳醒%廖微%武海軍%楊麗娟%申麗琴
윤준미%만길고%황병성%료미%무해군%양려연%신려금
金属材料%钯铁合金%有恅化转变%Pd3Fe有恅相%电阻温度系数%气敏元件
金屬材料%鈀鐵閤金%有恅化轉變%Pd3Fe有恅相%電阻溫度繫數%氣敏元件
금속재료%파철합금%유로화전변%Pd3Fe유로상%전조온도계수%기민원건
metal materials%Pd-Fe alloy%orderly transition%Pd3Fe ordered phase%temperature coefficient of resistance%gas sensor
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/℃。
採用特製的冷卻結晶器製備齣瞭細小等軸晶的鈀鐵閤金鑄錠，利用差熱分析研究瞭鈀鐵閤金的有恅化轉變規律，以及有恅化轉變對閤金電學性能的影響，結果錶明，Fe含量為15%~25%的PdFe閤金中存在Pd3Fe有恅相，閤金在750~850℃範圍內髮生有恅相轉變，保溫9 h有恅化轉變基本完成，Φ0.02 mm的Pd3Fe有恅相閤金細絲的電阻溫度繫數高達(6150~7650)×10-6/℃。
채용특제적냉각결정기제비출료세소등축정적파철합금주정，이용차열분석연구료파철합금적유로화전변규률，이급유로화전변대합금전학성능적영향，결과표명，Fe함량위15%~25%적PdFe합금중존재Pd3Fe유로상，합금재750~850℃범위내발생유로상전변，보온9 h유로화전변기본완성，Φ0.02 mm적Pd3Fe유로상합금세사적전조온도계수고체(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/℃.
