如果晶核的生成速度较快,而晶核生成后的成长速度较慢,则生成的晶核数目较多,晶粒较细。
If the generation of the nucleation rate faster, and crystal nucleus formation, growth speed is slow, it generated more cell number, grain is fine.
也就是说,在电镀过程中当晶核的生成速度大于晶核的成长速度时,就能获得结晶细致、排列紧密的镀层。
That is, in electroplating process when the generation of the nucleation speed is greater than the growth of the nucleation rate, it can get meticulous, crystallization of closely spaced coating.
事实上,目前普遍公认的理论是:雨的形成依赖于空气中尘粒的存在,因为尘粒可作为晶核,使雨珠在其周围生成。
In fact, the generally accepted theory now is that the production of rain depends upon the presence of dust particles in the air, which serve as nuclei about which the drops may form.
在形成金属晶体时又可分为同时进行的两个过程:结晶核心(晶核)的生成和成长过程。
In forming metal crystal and can be divided into performed at the same time two process: crystal core (forms) the generation and growth process.
实践表明:提高金属电结晶时的阴极极化作用,可以提高晶核的生成速度,便于获得结晶细致的镀层。
Practice shows that improve the metal electrical crystallization in the cathode polarization effect, can improve the generation of the nucleation rate, easy to get crystallization meticulous coating.
晶核的生成速度大于晶核成长速度的程度越大,镀层结晶越细致、紧密。
The generation of the nucleation speed is greater than the growth of the nucleation rate, the greater the degree of coating crystallization, close the meticulous.
大量晶核的生成是过饱和消除的主要因素。
Amount crystal growth is main reason to removing supersaturation.
大量晶核的生成是过饱和消除的主要因素。
Amount crystal growth is main reason to removing supersaturation.
应用推荐