稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2005年
4期
521-525
,共5页
方亮%肖锋%陶再南%汪立文%向井楠宏
方亮%肖鋒%陶再南%汪立文%嚮井楠宏
방량%초봉%도재남%왕립문%향정남굉
Ni-Ta合金%密度%改良密度%摩尔体积%钽
Ni-Ta閤金%密度%改良密度%摩爾體積%鐽
Ni-Ta합금%밀도%개량밀도%마이체적%단
Ni-Ta alloy%density%modified pycnometric method%molar volume%tantalum
用改良密度法对熔融Ni-Ta二元合金的液态密度进行了精密测量.结果表明:熔融Ni-Ta二元合金的密度随温度的增加而减少,但随合金中钽浓度的增加而增加;熔融Ni-Ta二元合金的摩尔体积随温度和合金中钽浓度的增加而增加,并对钽在熔融Ni-Ta二元合金中的偏摩尔体积进行了计算.
用改良密度法對鎔融Ni-Ta二元閤金的液態密度進行瞭精密測量.結果錶明:鎔融Ni-Ta二元閤金的密度隨溫度的增加而減少,但隨閤金中鐽濃度的增加而增加;鎔融Ni-Ta二元閤金的摩爾體積隨溫度和閤金中鐽濃度的增加而增加,併對鐽在鎔融Ni-Ta二元閤金中的偏摩爾體積進行瞭計算.
용개량밀도법대용융Ni-Ta이원합금적액태밀도진행료정밀측량.결과표명:용융Ni-Ta이원합금적밀도수온도적증가이감소,단수합금중단농도적증가이증가;용융Ni-Ta이원합금적마이체적수온도화합금중단농도적증가이증가,병대단재용융Ni-Ta이원합금중적편마이체적진행료계산.
The density of molten Ni-Ta alloys has been measured by a modified pycnometric method. It is found that the density of the molten Ni-Ta alloys decreases with a rise in temperature, but increases with the increase of tantalum concentration in the alloys. The molar volume of molten Ni-Ta binary alloys increases with the increase of temperature and tantalum concentration. The partial molar volume of tantalum in molten Ni-Ta binary alloy has been approximately calculated.