| Title |
Fabrication and Microstrucual stability of Unidirectionally Solidified Ribbon Type Pb - Sn Eutectic Alloys |
| Authors |
배동현(Dong Hyun Bae); 이상엽(Sang Youb Lee); 이동희(Dong Hi Lee) |
| Abstract |
Ribbon type Pb-Sn eutectic alloy of 0.2∼0.8 ㎜ thickness fabricated continuously by using an unidirectional solidification apparatus. When the controlled growth velocity was in the range of 0.011∼0.038 ㎝/min. at the constant temperature gradient in solid, G= 33.79 ℃/㎝, well aligned eutectic specimen of lamellar spacing, λ= 2∼4 ㎛ could be prepared into ribbon shape longer than 100 ㎜ in length. A micro-morphological stability of solid-liquid interface was analysed by means of three theoretical stability models. |