CAJ | 학술논문

利用高温液态金属X射线衍射仪对纯金属In、Ga、Ge、Ag、Cu、Al、Sn等在液相线以上不同温度进行了实验研究,得到了其衍射强度、结构因子、双体分布函数、径向分布函数以及平均最近邻原子间距、原子配位数.实验结果表明,纯金属In、Ge、Ag、Cu、Al、Sn等在液相线以上较大温度范围内,原子团簇都存在微观热收缩现象,几种金属的微观热收缩都具有一个共同的特点--在整个测试温度区间内热收缩是不均匀的,每种金属在各温度区间内的热收缩程度以及特征不同.在此基础上进一步探讨了微观热收缩现象的机理以及熔体内发生的结构变化.
이용고온액태금속X사선연사의대순금속In、Ga、Ge、Ag、Cu、Al、Sn등재액상선이상불동온도진행료실험연구,득도료기연사강도、결구인자、쌍체분포함수、경향분포함수이급평균최근린원자간거、원자배위수.실험결과표명,순금속In、Ge、Ag、Cu、Al、Sn등재액상선이상교대온도범위내,원자단족도존재미관열수축현상,궤충금속적미관열수축도구유일개공동적특점--재정개측시온도구간내열수축시불균균적,매충금속재각온도구간내적열수축정도이급특정불동.재차기출상진일보탐토료미관열수축현상적궤리이급용체내발생적결구변화.
Diffracted intensity,structure factor,two-body distribution function,radial distribution function and the average distance between current atoms was gotten by using liquid metal XD of high temperature to do experiment on pure metal,for example,In,Ga,Ge.Cu,Al,Sn,etc,in liquid phase line with different temperature.The experiment result shows that pure metal In,Ge,Ca,Al,Ag,Sn,ect,they all have a common feature-the thermal contraction in the entire test temperature is uneven and the thermal contraction levels and characteristics of every metal are different.Go further investigation for the mechanism of the phenomenon of microcosmic thermal contraction and structral changes occurred inside the metal melt on the basis of the result.