The products we mainly dealt in include all types of ceramic capacitor , aluminum electrolytic capacitor , zinc oxide varistor , integrated circuitries , and diodes 公司所經(jīng)營的產(chǎn)品包括種陶瓷電容器、鋁電解電容、壓/熱敏電阻、集成電路、二極管等。
In short , adding appropriate amount rare - earths oxide can improve potential gradient greatly , decrease leakage current with voltage ratio no changed and make zinc oxide varistor with outstanding comprehensively performance 總之,添加微量稀土氧化物能夠顯著提高氧化鋅壓敏閥片的電位梯度、降低漏電流,使其具有優(yōu)良的綜合性能。
Adding 0 . 04mol % nd2o3 improves the varistor voltage remarkably , and at the same time decreases the leakage current and the voltage ratio , then zinc oxide varistor show outstanding comprehensively performance . nano zno powder was added into varistor materials 研究結(jié)果表明,壓敏閥片中加入納米氧化鋅后,其壓敏電位梯度顯著提高,當納米zno含量達到sowt %時,壓敏電位梯度可達613 . 73vlmm 。
Therefore , adding rare - earths oxides ( nd2os > ceo2 and la2o3 ) with appropriate content decreases the size of zno grain evidently and makes the grain size and distribution more homogeneous , then the zinc oxide varistor show outstanding comprehensively performance 因此, ndzo3 、 ceoz和lazo3加入到氧化鋅壓敏閥片中,使zno晶粒尺寸減小,并使晶粒分布更為均勻,從而改善了壓敏閥片的綜合電性能。
The results of experiment indicated that adding a appropriate amount of rare - earths oxide in zinc oxide varistor led to increase potential gradient greatly , decrease leakage current with voltage ratio no changed . when the nd2o3 content is 0 . 04mol % , potential gradient of zinc oxide varistor is maximum , improves about 65 % compared with zinc oxide varistor no containing nd2o3 , voltage ratio and leakage current are the lowest 當nd _ 2o _ 3含量為0 . 04mol時,氧化鋅壓敏閥片的電位梯度達到極值,與不含nd _ 2o _ 3的氧化鋅壓敏閥片相比提高約65 ,且壓比最低,漏電流最小,因此本實驗nd _ 2o _ 3添加量的最佳值為0 . 04mol 。
The influences and mechanisms of rare - earths oxide additives la2o3 on the electrical performance of zinc oxide varistor were explored in this paper . microadded rare - earths oxide in traditional raw materials of zinc oxide varistor , researched the influences of rare - earths oxide on the electrical performance of zinc oxide varistor , and selected the optium composition of various rare - earths oxide additives 在傳統(tǒng)配方的氧化鋅壓敏閥片原料中添加微量稀土氧化物nd _ 2o _ 3 、 ceo _ 2 、 la _ 2o _ 3 ,研究各種稀土氧化物的添加量對氧化鋅壓敏閥片主要電性能的影響規(guī)律,優(yōu)化氧化鋅壓敏閥片原料中各種稀土氧化物添加劑的成分。
Using this expression to calculate the optimum rare - earths oxides ( nd2o3 , ceo2 and la2o3 ) content of zinc oxide varistor , the quantitative calculation results are in accordance with the experimental results approximately . the double shottky potentical barrier was showed in form of catoon using flash , from which we can comprehend the conduction theory of zinc oxide varistor . the electrical properties of varistor can be improved depend on it 運用固體物理、半導體和電子薄膜材料的相關(guān)理論,建立數(shù)學模型,推導出了最佳摻雜含量的理論計算式,并將之推廣到高溫燒結(jié)的氧化鋅壓敏陶瓷材料,運用這一計算式定量計算ndzo3 、 ceoz和lazo3等稀土摻雜的最佳含量,計算結(jié)果與本文的實驗結(jié)果比較符合。
Synthetic analyze that effect of nd2o3 on improving potential gradient is the most outstanding , effect of la2o3 is more outstanding and that of ceo2 is the inferior . adding appropriate amout nd2o3 improves remarkably potential gradient , at the same time decrease leakage current and voltage ratio , that results in zinc oxide varistor with excellent comprehensively performance 綜合分析, nd _ 2o _ 3提高壓敏電位梯度的作用最為顯著, la _ 2o _ 3次之, ceo _ 2最弱,并且適量的nd _ 2o _ 3在顯著提高壓敏電位梯度的同時,可降低漏電流和壓比,使壓敏閥片具有優(yōu)良的綜合性能。