Structure of short range order in Cu and Al melt;
液态Cu和Al的短程有序结构
For investigating the structure of short range order (SRO) in Cu melt, a nanocrystalline model for liquid metal was constructed.
为研究液态Cu的短程有序结构,建立了液态微观结构的纳米晶粒模型,从晶体X射线衍射学的角度出发,通过对固态Cu衍射峰的宽化计算出了液态X射线衍射强度曲线。
Some Fe 2B-like and Fe 3B-like short range orders (SRO) with sizes about 1～3nm have existed in the as-quenched alloy and .
ＨＲＥＭ观察结果表明，合金淬态结构中存在有尺寸约１～３ｎｍ的类Ｆｅ２Ｂ及Ｆｅ３Ｂ短程有序区，脆化时长大至３～７ｎｍ。
8at% Ni at room temperature is composed of columnar B2 and granular metastable phase;the metastable phase is a disordered Al made up of Ti and Ni atoms;there is a vacancy short-range order in RS TiNi ribbon and a vacancy long-range order in RS TiNi ribbon followed by aging.
快速凝固后室温下合金的组织由柱状Ｂ２相和粒状亚稳相构成；亚稳相是由Ｔｉ、Ｎｉ两元素原子构成的无序面心立方结构；快速凝固后合金中的空位呈短程有序分布，而在４５０℃５ｍｉｎ时效后呈长程有序分布，在电子衍射图上形成１／２１００和１／４２１０额外斑点。
The XRD and TEM results show that short-range ordering emerges in the ribbons of Fe83Ga17 with wheel speed of 12 m·s-1, which is helpful for the magnet.
XRD和TEM分析发现,在成分为Fe83Ga17快淬薄带中,出现产生畸变的DO3结构和短程有序结构, 有助于快淬薄带磁致伸缩性能的提高。
And thus the formula of < cosθ >, which expresses the ordered degree of electric moment of polar molecule in field direction, is calculated.
通过计算