機械合金法合成銅基非晶複合材料之研究

Synthesis of Cu-based amorphous composites by mechanical alloying technique

楊智閔(Chih-Min Yang)

指導教授 ： 胡家榮

大同大學/工程學院/材料工程學系所/碩士(2010年)

摘要

本研究主要是利用機械合金法(Mechanical Alloying)合成銅基非晶質粉末，並以真空熱壓法製備塊狀非晶合金。在20℃/min之DSC熱分析下，六元合金系統中的(Cu47Ti33Ni17Sn2Si)95Ta5、(Cu47Ti33Ni17Sn2 Si)95C5、(Cu47Ti33 Ni17Sn2Si)95Nb5的過冷液態區ΔTx分別為42K、37K、49K；而以五元合金系統Cu-Ti-Ni-Sn-Si球磨至6.5小時後再分別添加入Ta、C、Nb球磨0.5小時之粉末的過冷液態區ΔTx分別為47K、40K、37K。以真空熱壓法壓製六元合金系統得到的塊材(Cu47Ti33Ni17 Sn2Si)95Ta5、(Cu47Ti33Ni17Sn2 Si)95C5、(Cu47Ti33 Ni17Sn2Si)95Nb5其硬度分別為386HV、349HV、452HV，而以五元合金系統Cu-Ti-Ni-Sn-Si球磨至6.5小時後再分別添加入Ta、C、Nb球磨0.5小時之粉末壓製塊材的硬度分別為589.6HV、448.9HV、567.8HV，發現五元非晶合金複合材料的硬度大於六元非晶合金，且孔隙率小於六元非晶合金

關鍵字

真空熱壓法 ； 過冷液態區 ； 銅基非晶合金 ； 機械合金法

並列摘要

This study examined the amorphization behavior of Cu-based alloy

powder synthesized by mechanical alloying technique and the feasibility

of consolidation by vacuum hot pressing. The phase stabilities of

as-milled powders were investigated by DSC measurement at 20℃/min.

The supercooled liquid region(ΔTx) of the senary alloys is 42K for

(Cu47Ti33Ni17Sn2Si)95Ta5 , 375K for (Cu47Ti33Ni17Sn2 Si)95C5 and 49K for

(Cu47Ti33 Ni17Sn2Si)95Nb5 respectively. The (Ta or Nb or C)/Cu-Ti-Ni-Sn

-Si composites were synthesized by milled 6.5hr for the quinery Cu-Ti-Ni

-Sn-Si composition and then mixed wth Ta,Nb,or C elements for half
.
hour .The ΔTx of these composition is 47K for 5%Ta/95%(Cu47Ti33Ni17

Sn2 Si) , 40K for 5%C/95%(Cu47Ti33Ni17Sn2 Si) and 37K for 5%Nb/

95% (Cu47Ti33Ni17Sn2 Si),respectively.The microhardness of the bulk

senary amorphous alloys is 386HV for 5%Ta/95%(Cu47Ti33Ni17Sn2

Si),349HV for 5%C/95%(Cu47Ti33Ni17Sn2 Si) and 452HV for 5%Nb/95%

(Cu47Ti33Ni17Sn2 Si) respectively. As the results demonstrated,the

microhardness and density for the quinary amorphous alloys embedded

with elemental particles, these for the senary amorphous alloys are higher

than them.

並列關鍵字

Mechanical alloying ； Cu-based amorphous alloy ； Supercooled

參考文獻

10. K.L.Chapra, Thin Film Phenomena, McGraw-Hill, 1969.

11. W.Paul, R. J. Temkin, Adv. Phys., (1973)531.

22. P. Y. Lee, C.C. Koch, Journal of Non-Crystalline Solids, 94(1)(1987)88-100.

23. Lee, C. H., Fukunaga, T. and Mizutani, U.,“Temperature Dependence of Mechanical Alloying and Grinding in Ni-Zr, Cu-Ta and Fe-B Alloy Systems,”Mater. Sci. Eng. A134., (1991) 1334-1337.

24. Eckert, J., Schultz, L. and Urban, K., “Amorphization Reaction During Mechanical Alloying : Influence of the Milling Conditions,”J. Mater. Sci., Vol. 26(1991) 441-446