磁粉磁性顆粒 的英文怎麼說

中文拼音 [cífěncíxìngkēlì]
磁粉磁性顆粒 英文
magnetic particle
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 粉 : Ⅰ名詞1 （粉末） powder 2 （用澱粉製成的粉條或粉絲） noodles or vermicelli made from bean potato o...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 磁性 : [物理學] magnetism; magnetic; magnetic performance; magnetic property
  • 顆粒 : 1 （小而圓的東西） pellet; bead; dust; anything small and roundish （as a bean pearl etc ）2 （一...
  1. Dry powder, granule raw materials which have special requirements to drying. for example : hp vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on

    對有特殊要求的粉狀，顆粒狀物料的乾燥。如： hp發泡劑、酒糟渣、輕質碳酸鈣、活性白土、磁粉、石墨、藥渣。
  2. 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。
  3. With the increasing of cu contents, flie resistivity of composite samples nd _ ( 0. 67 ) sr _ ( 0. 33 ) mn _ ( 1 - y ) cu _ ( y ) o _ ( 3 ) ) _ ( 0. 7 ) / ( nife _ ( 2 ) o _ ( 4 ) ) o. 3 changes rapidly and the mr gets better ; 6. as for the composite samples composed of nd _ ( 0. 67 ) sr _ ( 0. 33 ) mn _ ( 0. 8 ) cu _ ( 0. 2 ) o _ ( 3 ) of different sizes, with the increasing of heat treatment temperature, the grain size becomes larger, so the resistivity decreases and the capability of mr gets worse ; 7

    6 .經不同溫度熱處理后的n斷67sr033mn0 . scu0203粉體與nifezo ;復合制得的困衡67sr033mno . scu0203 ） 0袱困ifezo4 ） 03復合樣品，隨著粉體熱處理溫度的升高， nd067sr033mnoscu02o3顆粒粒徑逐漸增大，從而導致復合體系電阻率減小，同時磁電阻性能逐漸變差。
  4. Based on this point, our aim to obtain the high performance materials should be carried out as well as the er behavior be actualized through the chemistry design. in this paper, 4 supramolecular complexes of - cyclodextrin inhydrosoluble polymer / l - ( 2 - pyridlazo ) - 2 - naphthol, 6 hydrosoluble - cyclodextrin polymer / 3 - hydroxy - 2 - naphthoic acid, 2 - cyclodextrin - starch resins and 6 supramolecular complexes of - cyclodextrin - starch copolymer / substituted salisylic acid and 3 - hydroxy - 2 - naphthoic acid er particles were prepared, respectively. the structure of these particles was characterized by ir, nmr, uv - vis, the fluorescence analysis, element analysis, and etc, respectively

    在本項研究中，分別制備了4種不溶性-環糊精聚合物及其與1 - （ 2 -吡啶偶氮） - 2 -萘酚構築的超分子配合物、 6種水溶性-環糊精聚合物及其與3 -羥基- 2 -萘甲酸的超分子配合物、 2種-環糊精澱粉樹脂及6種-環糊精澱粉共聚物與取代水楊酸、 3 -羥基- 2 -萘甲酸形成的超分子配合物顆粒，通過紅外光譜、熒光分析、元素分析、電子吸收光譜及核磁共振譜等對它們的結構進行了表徵。
  5. These particles will aggregate into a certain structure when the applied field yields a critical value. the other is fabricated from " half - metallic " oxides, i. e., ferromagnetic oxides which are predicted theoretically to be completely spin - polarized and really found experimentally to have very high spin - polarization. when a magnetic field is applied to half - metallic granular systems, the resistance will drop rapid and dramatically, which is called the extrinsic magnetoresistance effects in half - metallic granular systems

    在磁性材料中，亦有由在理論上具有完全的自旋極化率、在實驗中也被證實具有高自旋極化率的一系列半金屬氧化物材料構成的多晶、粉末等顆粒體系，被發現能在外磁場下發生顯著的電阻下降，即半金屬氧化物顆粒體系中的外稟磁電阻效應。
  6. The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties

    微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。
  7. The bonded magnets with excellent magnetic properties were manufactured by wetly - mixed epoxy and prfeb powders, which granularity was 100 to 140, and under the pressure of 600 to 800 mpa. then the magnets were solidified 2 hours, under the temperature of 160c

    結果表明，當環氧樹脂與磁粉採用溶劑濕混，成型壓力選為600 ? 800mpa ，磁粉顆粒在100 ? 140目之間，磁體在160 ~ c真空固化2小時，粘結prfeb永磁合金的磁性能達到最佳。
  8. Amorphous can be obtained at certain composition range using ball milling. the size of the amorphous particles decreases with the lengthening of milling time, and reaches several nanometers. experiment also shows that the mixture powder is well ferromagnetic

    實驗發現，在一定成分范圍內通過球磨可以獲得非晶，非晶粉末顆粒大小隨球磨時間的延長而減小，最終達到幾個納米；同時發現，該混合粉末具有良好的鐵磁性。
  9. This paper investigates the em properties of carbonyl - iron / epoxy ds, including measuring and calculating the em parameters of the ds, the influence of matrix, particles content and thickness on absorbing properties

    本文對羰基鐵粉環氧顆粒分散體系的電磁性能進行研究，包括體系的等效電磁參數的測量和計算，體系基體、顆粒含量、厚度等對吸波性能的影響等。
  10. At the same time, the result show that the particle size and distribution of rapidly quenched ndfeb magnetic powder affect obviously on the magnetic property of the bonded ndfeb magnets

    採用不同顆粒度的磁粉進行配比對于粘結磁體的磁性能亦有影響，在100目與200目磁粉質量配比為2比3時有利於磁體性能的提高。
  11. The conclusion is that the main reason for making the magnetic properties lower is because the radius of the particles of magnetic powers is too large and the distribution is irregular, which ca n ' t result in obtaining the single - domain particles

    分析了影響材料磁性能的一些重要因素，指出粉末粒徑過大以及分佈不均，難以獲得單疇顆粒是造成材料磁性能不高的主要原因。
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