从熔体精炼单晶的一种方法。先将原料粉末熔合预制成烧结棒或材料棒,再使它缓慢通过温度高于该材料熔点的一个区域,使之熔融而再结晶为单晶。区域熔融可把杂质从一个元素或化合物中除掉,达到提纯的目的。也可把需要的元素重新分配于一个物质中,以控制它的成分。区域熔融既可用于提纯高熔点物质,也可用于纯化低熔点化合物。
... 区域湖沼学 regional limnology 区域熔融 regional melting 区域变质带 regional metamorphic belt ...
基于12个网页-相关网页
为提高防老剂BHT的纯度,采用重结晶和区域熔融法对工业品防老剂BHT进行提纯。
In order to improve the purity of industrial product, Antioxidant BHT was purified by the methods of recrystalize and zone melting.
成矿机理是:区域板块运动使本区在侏罗纪末下地壳形成花岗岩浆熔融层。
The metallogenic mechanism is as follows: in the latest Jurassic, the melting layers of granite magma in the lower crust were formed by the regional plate movement.
在青藏高原采集的大地电磁资料描绘了地壳中的主要局部熔融区域,其结果和大陆碰撞地球动力学模型的结果相一致。
Magnetotelluric data collected on the Tibetan Plateau have imaged a major zone of partial melting in the crust, that agrees well with geodynamic models for this continent continent collision.
应用推荐