It was found that the microstructure,composition and phase structure of the mineral phase containing titanium changed,accordingly,the existing state of Ti component also changed.
改变含钛高炉渣中矿相组成的研究是含钛高炉渣综合利用的关键;通过背散射电子形貌像、X射线能谱分析和X射线物相分析等手段,对氧化前的含钛高炉渣及其氧化改性后的渣样进行分析,表明氧化后渣中含钛相的形貌、成分和相结构等发生变化;钛的赋存状态也发生相应的改变。
Changing the Ti-bearing mineral phases in Ti-bearing blast furnace slag under oxidizing condition is crucial to the comprehensive utilization of the slag.
氧化条件下含钛高炉渣中含钛矿相的改变是含钛高炉渣综合利用的关键。
Study on Preparation, Modification and Photocatalytic Properties of Anatase Titania Nanoparticles with High Thermal Stability;
高热稳定性锐钛矿相纳米TiO_2的制备、改性及其光催化研究
Pure anatase can be obtained without being sintered by controlling experimental conditions.
通过控制实验条件,可以得到单一的锐钛矿相TiO2纳米晶。
Nanocrystalline anatase TiO2 powders were prepared by the method of precipitation-solution-gelation, using H2TiO3 as re-actants.
温度较低时,锐钛矿相的Raman谱峰明显可见,由于高温下Raman信号减弱,随着温度升高,Raman特征谱峰逐渐减弱以至于全部消失,仅显示出几个宽宽的凸起。
The pure perovskite phase of PLZST can be obtained at low temperature of 750℃ for 2 h by chemical method.
研究结果表明,化学共沉淀法合成PLZST具有一定的适用范围,在低温750℃下保温2h便能得到单一的钙钛矿相,掺入过量的Pb有利于PLZST晶体的生成,适当的退火处理能促进晶体长大。
It was found that B2O3 and PbF2 fluxes were harmful to the crystallization of perovskite phase PZNT.
发现B2O3,PbF2等助溶剂不利于钙钛矿相的析出;而BaTiO3-PbO复合体系虽然能够促进钙钛矿相析出,但晶体析出量很少;只有适当比例的。
The results show that pyrochlore appears in the films when crystallization temperature is 400～600℃ and films with a large quantity of perovskite can be obtained using rapid heating process.
用不同升温速率控制ＰＺＴ薄膜晶化过程，实验结果表明，当晶化温度在４００～６００℃时，薄膜显焦绿石相，当采用较高升温速率５０℃／ｍｉｎ时，在硅片上可缩小焦绿石相生成，提高钙钛矿相形成，从而获得取向性高的钙钛矿相ＰＺＴ薄