摘要
在 99.995 %Ag中添加 8× 10 -5Mg制成 99.99%纯Ag ,进行机械性能测试试验 .当ε =98%时 ,在2 5℃下保存 2 0 0d ,其强度和硬度稳定不变 .即在 99.995 %的高纯Ag中存在有微量镁 ,使Ag在结晶过程中出现少量Ag溶Mg的固溶体颗粒 ,细化Ag的晶粒 ,晶界增多 ,变形抗力增大 .
A 99.99% silver material is manufactured by adding 8×10 -5 ?Mg to the 99.995% Ag.The test measurement of mechanical properties for this material shows that the strength and hardness of the silver kept at 25℃ for 200 days do not change with time if ε =98%.By adding trace magnesium to 99.995% silver,the pellets of solid solution of Mg dissolved by Ag are produced with fine crystal grains of Ag,increased crystal interfaces and higher strength.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
2002年第5期354-357,共4页
Journal of Yunnan University(Natural Sciences Edition)
基金
云南省自然科学基金资助项目 (2 0 0 0E0 0 84M )
