- 脈沖間隙
- 脈沖間歇
- 脈沖重復周期
- 脈沖周期，脈沖間隔
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pulse interval中文什么意思
例句與用法
- Pulse interval modulation
脈沖間掉制 - For electrodeposition by dc methods , the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method , the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method , the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval , in addition , the reverse pulse current also could dissovle the metals , further accelerates the desorption of particles , thus the particles size embeded in the coatings by prc method is the least
直流電沉積時,基質(zhì)金屬的沉積連續(xù)進行,粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由于脈沖間歇的存在使得具有較大體積的粒子會脫附,重新回到溶液中;采用周期換向脈沖時,反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附,同時,反向脈沖電流對基質(zhì)金屬的溶解作用,也會促進粒子的脫附,因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加,三種鍍層的晶粒都明顯細化,說明al _ 2o _ 3的存在阻止了晶粒的長大,提高了電沉積過程中晶核的形成速率。