| 1. | Convenient mud compound powder
方便钻井液复合粉 |
| 2. | Metallic and its compound powder - determination of specific surface and particle size by air permeating method
金属及其化合物粉末比表面积和粒度测定空气透过法 |
| 3. | It was found that the mo - cu compound powder after high energy ball milling was in a inequilibrium energy storage state
本文通过对mo - cu复合粉末的机械合金化研究表明，经过高能球磨后的mo - cu复合粉末，处于非平衡储能状态。 |
| 4. | The x - ray diffraction analysis of the compound powder showed that the value of the diffraction peak reduced , the breadth of the diffraction peak broadened . there was incrystallizing to a certainty degree of the compound powder
粉末的x - ray衍射分析表明，粉末的衍射峰峰值降低，峰增宽，粉末体系产生了一定程度的非晶化。 |
| 5. | The dta showed there was large amount additional energy deposited in the compound powder . by calculation , the 4 - hour milled powder stored 28 . 1 % of phase transformation energy of cu , and the 8 - hour milled powder stored 31 . 4 %
经过计算得出， 4小时球磨粉储能约为cu相变潜热的28 . 1 ， 8小时球磨粉储能约为cu相变潜热的31 . 4 。 |
| 6. | 3 . cu2o and cuo are deoxidized into cu when the oxidized powders are kept at 1073k for 30min in gas protected furnace , in which graphite is used for heating unit , while cr2o3 can not be deoxidated . so the oxidized powders can be made into cr2o3 / cu compound powders
在以石墨为发热体材料的气氛保护炉中，预氧化后的粉末在1073k保温30min后， cu _ 2o被还原成cu ，而cr _ 2o _ 3稳定存在，因此可将氧化后的粉末制成cr _ 2o _ 3 cu复合粉末。 |
| 7. | From all of the work and experiments , the following conclusion could be drawn : at normal temperature , compound powders of tib2 and mgo , which can be separated and purified by hydrochloric acid , can be prepared successfully by ball - milling with tio2 , b2o3 and mgo as raw powders
对酸洗反应的热力学进行了分析。结果表明，在常温下，利用机械合金化方法，以tio _ 2粉、 b _ 2o _ 3粉和mg粉为原料，可以成功制备tib _ 2和mgo的混合粉末。 |
| 8. | Tic , zrc and cu - 50 % tic were fabricated by reactive ball milling using ti , zr , c and cu powders for raw materials . compound powders were prepared by ball - milling with raw powders that have been fabricated . dispersion strengthen cu - based materials was synthesized at last though a set of technical course that consist of different pressing technique , sintering technique and heat extrusion technique
本课题以单质ti 、 zr 、 c和cu粉末为原料，用反应球磨技术制备了tic 、 zrc和cu - 50 tic原料粉末，将制备的原料粉末和cu粉用球磨混合，制备出cu - tic 、 cu - zrc和cu - ( tic + zrc )复合粉末，然后设计不同的压制工艺和烧结工艺进行压制、烧结和热挤压，最终获得高强度的弥散强化铜基复合材料。 |
| 9. | The feasibility of copper matrix reinforced by cr2o3 particles was discussed from the aspect of the demand of composite on reinforcer , interface and its formation . crcu alloy powders prepared by water atomization were turned into cr2o3 / cu compound powders , which were made into composites
本文从复合材料对颗粒增强相的要求、复合材料的界面以及复合材料的成型等角度分析了cr _ 2o _ 3颗粒作为弥散强化相增强铜基体的可行性，采用水雾化法制备crcu合金粉末，并通过预氧化的方法得到cr _ 2o _ 3 cu复合粉末，运用粉末冶金法制备cr _ 2o _ 3 cu复合材料。 |
| 10. | So the study and use of compound powders and thin films get more and more regards . among them the double layered structure nanocompound semiconductor become the focus of study by their high photocatalytic efficiency , fast reaction speed etc . it has been confirmed that the potassium niobate ( k4nb6o17 ) is an excellent semiconductor photocatalyst . its special construction consists in the ion k + in the interlayer can be replaced by other cations , which providing vast space of modifying the material
层状化合物中的铌酸钾k _ 4nb _ 6o _ ( 17 )已被证实是一种性能优异的半导体材料，具有光催化和光电转换性能，其独特的结构是处于层间的带正电的k ~ +可以被其它阳离子所替代，正是由于其多元素、复合型的特点，为材料的修饰和改性提供了广阔的技术空间。 |
