純粒鐵 的英文怎麼說
中文拼音 [chúnlìtiě]
純粒鐵
英文
ferrite-
Edge of the granule image by video is the key of its image partition, the article tries to carry through a deeper research on image partition at the same time. granule is made up of savageness mater and industry material ( including of rock, sand, earth, atomy, steel, china, concrete, ink powder, magnetism powder, light fine and tiny powder used silicon, cell etc. )
顆粒是構成天然物質和工業材料（巖石、礦石、沙子、泥土、塵埃、鋼鐵、陶瓷、水泥、墨粉、磁粉、光纖和料封裝材用高純硅微粉、細胞等）的基本單元，顆粒尺寸（粒度）是顆粒的首要特徵和粉體材料的第一指標。The interstitial net and aggregates may be of solid sulfide but most contain magnetite and silicate in widely varying proportions.
粒間網線及集結體可以是純硫化物，但大多數含有不同比例的磁鐵礦及硅酸鹽礦物。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。The powder synthesized by co - precipitation has many advantages such as fine crystal grains, good homogeneity and purity, high activity, and these favor the solid phase reaction. so the magnetic properties of the samples were better than that of those prepared by conventional oxides methods
共沉澱法制備的粉料具有晶粒細小，均勻性好，活性高，純度高等特點，這些特點有利於固相反應，能夠得到性能優良的鐵氧體材料。分享友人