| 1. | The atomic ratio of zn / se was close to 1 : 1 , which showed that the znse epilayers had good stoichiometry
Znse薄膜中zn se原子比都接近1 ： 1 ，制备的znse薄膜具有较好的化学计量比。 |
| 2. | Standard test method for the determination of uranium by ignition and the oxygen to uranium atomic ratio of nuclear grade uranium dioxide powders and pellets
用点火和核级二氧化铀粉末和颗粒的氧铀原子比测定铀的标准试验方法 |
| 3. | The xrf analysis of plct thin films shows that the atomic ratio of plct thin films is closed the ideal chemical mole ratio of plct thin films
利用xrf分析了plct薄膜的pb 、 la 、 ca 、 ti原子百分比,可以看出其比例接近于设计的化学式摩尔比。 |
| 4. | Abstract : based on the principle of non - weighting determination of c 、 h 、 n atomic ratio ， a micro - injection sample introducing method was developed for determination of h / c ratio for volatile reagent
文摘:根据不称重法测定化合物碳、氢、氮原子比的理论，建立了微量注射法测定强挥发性液体样品的氢/碳原子比的方法。 |
| 5. | The surface elemental analysis shows that al / o atomic ratio change from about 2 / 3 of not wetted part to about 1 / 1 of wetted part . the damage of coating surface seems to be related to the interaction of outside layer with liquid pb - 17li and thermal stress during heating sample
未浸润表面的ai / o原子比约为2 / 3 ，浸润表面约为1 / 1 ，表明液态铅锂合金对渗铝层表面的al2o3薄层造成了损伤。 |
| 6. | When sulphurisation time is 30 minutes and sulphurisation temperature change from 180 to 240 , the atomic ratio s / sn of the films increases from 0 . 72 to 1 . 08 and energy gap of the films increases from 1 . 44ev to 1 . 48ev with the increasing of the sulphurisation temperature
当硫化时间为30分钟硫化温度在240 ~ 310之间变化时,薄膜的s / sn值随着硫化温度的升高从1 . 08上升到1 . 96 ,能带间隙随着硫化温度的升高从1 . 01ev上升到1 . 72ev 。 |
| 7. | The results are as follows : as the sputtering pressure increases , the atomic ratio of o to ti increase in the films , which is attributed to the fact that the absolute oxygen content increases , as the pressure increases despite the ratio of 62 to ar remains unchangless
结果发现：在氧气、氩气分压比不变的条件下，薄膜表面o和ti原子比增大，这可能是由于溅射气压增大，而氧气与氩气比未变，真空室中氧气的绝对含量增加，参加反应的氧原子数增加的缘故造成的。 |
| 8. | When the atomic ratio of nb is one , the structure is homogeneous and almost composed of the single sm2fe17 phase . it ' s nearly the same structure as that after annealing . so it can reduce the production cost and increase the stability of magnetic properties
当nb的原子比为1时的铸态组织基本为均匀的接近单相的sm _ 2fe _ ( 17 )组织，已接近于退火后的组织，从而可以避免冗长的均匀化退火化过程而直接用于制造永磁体，极大的降低了生产成本，并能有效的提高磁性能的稳定性。 |
| 9. | A detailed analysis of the electrical properties of ato thin films was carried out in order to investigate the sb / sn atomic ratio and substrate temperature ' s influence on the ato thin film . a convictive explanation brought forward to illustrate the changing of the electrical ； properties of the ato thin film in different conditions
在温度较低时( < 500 ) ，薄膜的方块电阻随成膜温度的升高而降低；当基板温度继续升高，薄膜的方块电阻随基板温度的升高而增大，这主要是因为玻璃基板中k ~ + 、 na ~ +离子向薄膜中的扩散。 |
| 10. | Surface states and the topmost surface atoms of the batio3 thin films have been analyzed by x - ray photoelectron spectroscopy ( xps ) and angle - resolved x - ray photoelectron spectroscopy ( arxps ) . the results show that the as - grown batio3 thin films have an enriched - bao nonstoichiometric surface layer which can be removed by ar + ion sputtering , and the atomic ratio of ba to ti decreases with increasing the depth of ar + ion sputtering
用x射线光电子能谱技术( xps )和角分辨x射线光电子能谱技术( arxps )研究了薄膜的表面化学态以及最顶层原子种类和分布状况,结果显示在热处理过程中薄膜表面形成一层富含bao的非计量钛氧化物层,并且钡-钛原子浓度比随着探测深度的增大而逐渐减小。 |
