| 1. | The effects of calcinations temperature and holding time on the perovskite phase of synthesized pmn - pt have been studied
并研究了煅烧温度及保温时间对合成材料单相性的影响。 |
| 2. | The f and n came from the precursor solution and the amount of f decreased with increasing calcination temperature
其中f和n元素来源于前驱体溶液，且tio _ 2薄膜中的f元素含量随热处理温度的升高而减少。 |
| 3. | The effects of doping ratio , calcinations temperature and calcinations time on the structure and the particle size have been comprehensively studied
系统研究了掺杂比，热处理温度，热处理时间等制备工艺过程对ato纳米粉体相组成和粉体粒度的影响。 |
| 4. | The reaction activity of the catalyst can be adjusted by changing the preparing condition , which including the calcination temperature , the metal load and the carrier
制备过程中焙烧温度、负载量以及不同催化剂载体的选用都会影响所得催化剂的性能。 |
| 5. | With increasing calcination temperature , the photocatalytic activity of the tio2 thin films gradually increased due to the improvement of crystallization of the anatase tio2 thin films
随热处理温度的升高，薄膜的光催化活性逐渐增加，这是由于薄膜中锐钛矿相tio _ 2的形成和tio _ 2晶化程度的提高。 |
| 6. | When the calcinations temperature fell into the scope of 300 - 400 , its resistance begun to decrease sharply . however , the resistance almost kept unchanged under higher calcinations temperature
电阻值随热处理温度的升高而下降，在300 ? 400左右时，电阻值下降很快，继续升高热处理温度，电阻值减小趋势变缓。 |
| 7. | The precursor method could solve the problem that the appearance of pyrochlore phase during the synthesis procedure by avoiding the direct reaction between pbo and nb _ ( 2 ) o _ ( 5 ) . furthermore it also could decrease calcination temperature and pbo volatility
采用二次合成法制备pmn - pt钙钛矿相，避免了pbo和nb _ 2o _ 5的直接反应，从而抑制了焦绿石相的生成。 |
| 8. | Compared with 3 % , the temperature of polymorphic transition between anatase and rutile of 8 % which is the molar quantities of mixed rare earth is a little lower . the calcination temperature is a main reason which influences the structure of phase
掺入镝的含量8时，锐钛矿相向金红石相的转变温度与3相比有所降低，所以煅烧温度是影响产物结构的主要原因。 |
| 9. | The power prepared was examined by many kinds of analytic measures , like as xrd , xps , tem , sem and x rays fluorescence , etc . the sol - gel method was used to synthesize dy - doped titanium oxide , the impact of elements such as solvent ' s quantities , temperature , ph value , calcination temperature on the course of sol - gel is studied , and the quantities of mixed rare earth is also studied on the influence about the structure of phase , thus established the best technology parameter
本文对掺杂稀土元素镝的氧化钛和氧化锆超微陶瓷粉末的制备的工艺过程进行了研究，并用xps 、 xrd 、 tem 、 sem和x射线荧光等多种测试手段对制得的粉末进行了分析。用溶胶-凝胶法合成氧化镝/氧化钛的陶瓷粉末，研究了溶剂量，温度， ph值，煅烧温度等对溶胶-凝胶过程的影响，以及掺杂稀土量对相结构的影响，从而确立了最佳的工艺参数。 |
| 10. | The appropriate calcinations temperature is about 700 , and the tetragonal sno2 phase crystal structure of the particles remained unchanged when sb was doped to it . as the calcinations temperature increasing and the calcinations time prolong , the size of particles grows and the crystallization tend to be complete . study on the electrical properties of ato powders prepared by hydrothermal synthesis was performed in - depth , the most optimal electrical properties are obtained at doping ratio of 11 percent
水热法制备的ato纳米粉体在热处理温度700左右较为适宜，锑的掺杂并未改变粉体的四方相金红石结构，随锑掺杂量的增加，粉体的粒度变小；随热处理温度的升高和热处理时间的延长， ato粉体的粒度增大，晶体结构趋于完整。 |
