氧化鐵微粒 的英文怎麼說
中文拼音 [yǎnghuàtiěwéilì]
氧化鐵微粒
英文
ferric oxide particles-
The results showed : composites showed microstructure of ep coating ultramicro iron ( - fe ), which could enhance the ability of antioxidation of composites
研究結果表明：復合粒子結構為ep包裹超微鐵（ - fe ）核殼結構，該結構提高了復合粒子的抗氧化能力。The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。( y, gd ) bo3 : eu3 + was the red phosphors for pdp, which had poor color purity. in this dissertation, solid state reaction method at room temperature was firstly used for coating the ( y, gd ) bo3 : eu3 + particles with hematite. the thickness of uniform hematite coating is about 10nm
（ y ， gd ） bo3 : eu3 +作為pdp用熒光粉的紅粉材料存在色純度差的弱點，為了提高其色純度，本文首次採用室溫固相法在微米級（ y ， gd ） bo3 : eu3 +顆粒表面包覆一層10nm左右的均勻的氧化鐵的包覆層。There are as many beneficial attributes of jasper as there are types, with each type having unique qualities. poppy jasper is said to help bring joy into life and is also used as a sleep aid. opalite jasper gives undisturbed rest
紅碧玉的成分與水晶一樣，也是屬于石英一族，不過並非像水晶般呈現透明色彩，而是塊狀微粒的不透明玉隨，因含有氧化鐵，故呈紅色，又稱火碧玉。It has many advantages, such as the particles size is well distributed, and its diameter can be well controlled, etc. because of this virtue, reverse micelle shows broad prospects in the preparation of ferrite nanoparticles. hi this work, the syntheses of mnfe2o4 nanoparticles, cofe2o4 nanoparticles and znfe2o4 nanoparticles are prepared by the reverse micelle method, these preparations employed reverse micelles formed with anionic surfactant bis - ( 2 - ethylhexyl ) sodium sulosuccinate ( aot ), which is considered the most effective surfactant, and another anionic surfactant bis - ( 2 - ethylhexyl ) sodium hydroxy sulosuccinate ( ahot ), which is a new surfactant, and was synthesized by our own research group. we also synthesized znfe2o4 nanoparticles using the cationic surfactant cetyltrimethylammonium bromide ( ctab )
本文分別採用通常被認為最佳的陰離子表面活性劑? ?二（ 2 -乙基己基）丁二酸酯磺酸鈉（ aot ） ，和我們課題組自己設計合成的新型陰離子表面活性劑? ?二（ 2 -乙基己基）羥基丁二酸酯磺酸鈉（ ahot ）所構成的反膠束體系為微反應器，成功制備了mnfe _ 2o _ 4納米粒子、 cofe _ 2o _ 4納米粒子和znfe _ 2o _ 4納米粒子；還以陽離子型表面活性劑? ?十六烷基三甲基溴化銨（ ctab ）構成的反膠束體系為微反應器，成功制備了znfe _ 2o _ 4納米粒子；並探討了表面活性劑的種類和結構對反膠束法制備鐵氧體納米粒子反應的影響。To measure the size of ba - ferrite fine magnetic particles, electromagnetic field was employed to drive the fine magnetic particles displace in order, then scanning electron microscope ( sem ) was used to observe and measure the size of ba - ferrite fine magnetic particles
為了迅速、準確地測定鋇鐵氧體磁粉顆粒的厚度、直徑和厚徑比的統計分佈，採用對磁顆粒施加外加電磁場的方法，使各個磁顆粒的易磁化軸方向趨於一致，並用掃描電子顯微鏡觀察鋇鐵氧體磁粉顆粒。分享友人