磁化能力 的英文怎麼說
中文拼音 [cíhuànénglì]
磁化能力
英文
magnetisablilty-
In order to improve the resistivity of oxidation, dysprosium cobalt ferrite magnetic fluids were prepared
摘要為了提高磁流體的抗氧化能力,制備了鏑鈷鐵氧磁流體。Fe - ni alloy fiber were first prepared in a mixed solution of ferrous and nickelous salts, using kbh4 as a reducing agent. conditions, such as quantity of naoh, concentration of salts, and species of surfactants, of preparation of fe - ni alloy were studied. the result show that fe - ni alloy were soft magnetic materials and they exhibited superparamagnetization at room temperature that have been widely used in industry
本文用液相還原法首次制備出纖維狀的fe - ni合金、球形的fe - co 、 co - ni合金、 fe - co - ni合金粉體材料,並對其性能進行了分析和測試,結果表明:這些合金粒徑小,比飽和磁化強度較大,矯頑力為零,呈現超順磁性,是非晶態的軟磁材料。The effects of the different kinds of rare earths and the doping amount of them on magnetic properties of bafe, 2o19 ultrafine powders ( including the specific saturation magnetization, the specific remanent magnetization and coercive force ) were firstly discussed systematically
首次查明了鋇鐵氧體粉末的磁性能(包括比飽和磁化強度、比剩餘磁化強度和內稟矯頑力)隨稀土元素種類及其摻雜量的變化規律。At first, the bonded magnet has been produced at varied technological conditions. then the influences of varied technological conditions, such as species and quantity of coupling agent, species and quantity of agglomerant, process of compression moulding and solidification process on magnetic property and compression strength of bonded magnet have been analysis by means of apparatus for measuring magnetic property and compression strength
首先,在不同工藝條件下制備出粘結磁體,然後利用磁性能測試儀、力學性能測試設備等測試手段,分析了偶聯劑的類型及其用量、粘結劑的類型及其用量、模壓工藝和固化工藝等因素對鐵氧體粘結磁體磁性能及力學性能的影響。The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超聲波、磁場)介入后,沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化,表現在:鍍液的陰極極化過電位和極化度降低,沉積速度提高;鍍層的結合力、表面質量改善;鍍層中過渡族元素的含量增加,輕元素硼的含量降低,同時證實了稀土元素與過渡族元素共沉積的可能性;鍍層的顯微結構由非晶態向微晶和多晶態轉變;鍍層的顯微硬度與耐磨性提高,力學性能優化;鍍層的矯頑力降低;磁導率提高;鍍層的磁化強度在能量(超聲波、磁場)和輕稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material, cup shape and longitudinal magnetic field contact structure, intensive interrupting ability is used. vacuum arc quenching chamber is laid in a sealed insulating cylinder, which significantly improve the ability of enduring environment and phase - phase insulation character
2 、設計了採用cucr25觸頭材料、杯狀縱磁場觸頭結構、開斷能力很強的小型化真空滅弧室;真空滅弧室布置在封閉的絕緣筒內,提高了環境耐受能力,同時使相間絕緣性能顯著提高。The test results show that the liquid metal dealed by electromagnetic pump is purified, its solidification process changes, thus, its fluidity improves
試驗結果表明,電磁泵處理使液態金屬充分凈化,使凝固結晶過程發生變化,有利於液態金屬充型能力的提高。Finally, coupled chaotic system is realized to measure the fluctuation of magnetic field. meanwhile, it is proved that coupled chaotic system could be used to reduce noise. this experiment also finds an efficient approach for noise reduction in chaotic measurement
最後把耦合混沌測量系統用於磁場測量中,實現用多個混沌電路耦合的系統測量微弱的磁場變化,證實了耦合混沌系統有較好的抗干擾能力的結論,為混沌測量的抗干擾措施找到了一條比較有效的途徑。In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點,對其中的牽引變壓器的工作狀態進行了分析,指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題,同時給出了相應的一些解決方法。Therefore, the wave is liable to be taken in by human body ensuing the emergence of resonance effect, which is able to activate cellular organization and promote metabolism. meanwhile, the magnetic therapy can effectively stimulate the circulation of the blood and cause the muscles and joints to relax through specific points. combining two unique functions together, the functional textile could take effect in evidence by improving human microcirculation efficiently, accelerate oxygen supply,
Nb素加磁功能產品,其中nb素所輻射的能量波正發與人體細胞中水分子律動頻率相同,極易被吸收並產生「共振效應「 ,從而活化細胞組織,促進新陳代謝,而磁療能通過穴位達到舒筋活絡的作用,二者科學的相迭加,所以效果更明顯,可充分改善人體微循環,加速氧氣的供給,提高人體細胞的再生能力,對高血壓肢體麻木關節痛肩頸痛腰肌勞損腰背酸痛等有很好的療效。Magnetic fluid shows higher saturation when it is exposed to magnetic field. in this paper, magnetic fluid is used to improve the dynamic performance of jet pipe servo valve by filling magnetic fluid in the working clearances of torque motor between armature and core
本文利用磁流體在外加磁場作用下,具有較大磁化強度的特點,提出了在力矩馬達銜鐵和鐵芯的工作氣隙中加入磁流體,利用磁流體來改善射流管伺服閥動態性能的方法。For example, when magnetic material being pressed, magnetic domain, direction and strength of spontaneous magnetization will vary. this phenomenon is called effect of pressing magnet. whichever rearrangement of magnetic domain or direction change of spontaneous magnetization will induces extra shape change of material
如對鐵磁材料施加應力時,往往會導致磁疇、自發磁化方向和強度發生變化,這一現象稱之為壓磁效應,由於得益於壓磁效應的作用,不論是磁疇重新排列還是自發磁化方向發生變化都會引起材料額外的形變,因此在一定應力的作用下鐵磁材料能產生非彈性變形。The general electronic warfare reconnaissance receiver, at the same time the multi - signal processing ability is weak, it only can do single signal processing per time. to process more signals, common receivers use pipeline and time - sharing method which is totally unsuitable for the extremely complicated electromagnetic environment in the modern war
通常的電子戰偵察接收機,同時多信號處理能力比較弱,同一時刻只能處理一個信號,而對多信號的處理只能採用流水作業的辦法進行時分處理,這已不能適應日益復雜的電磁環境下的信息化戰場需求。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。When the stress at the tip of crack is inflicted on the m - type ferrite particle dispersed in matrix as a second particle, not only the toughness of composites will be pro ved because of the non - elastic area produced by the particle but also the strength change of magnetic field and the stress distribution in the structural ceramics will be detected by the strength of spontaneous magnetization varying while magnetic materials being pressed or drawn
這是因為當結構陶瓷中裂紋尖端的應力作用在彌散於基體內的鐵磁體二相粒子上時,鐵磁粒子不僅在裂紋尖端周圍產生的非彈性區域使復合材料的韌性提高;而且還能利用鐵磁材料在外應力作用下自發磁化強度發生變化的性質,通過測量復合材料在應力作用下磁場強度的變化,探測出結構陶瓷中的應力分佈情況。The results indicate that the best annealing temperature is 1100 for 2h. a conclusion has been drawn that when the mol percent of iron is 60 %, the productions of powders and cycle samples have the best magnetic properties
通過對shs粉末樣品和磁環的磁性能測試發現:當反應產物中fe的摩爾分數為0 . 6時,粉末樣品粒徑大小均勻,產物具有較高的比飽和磁化強度和低的矯頑力。X - ray diffraction results revealed that the structure of as - deposited smco film was amorphous and crystallization happened after the films annealed at 500 in vacuum. the magnetic tests of smco thin films showed that its coercivity reduced with the increase of film ' s thickness while the ratio of mr / ms was opposite. the films " coercivity and mr / ms declined after it annealed at 500 because the machanism of magnetization were changed from domain wall nailing into magnetic nuclear forming
研究結果表明,由於雜質fe的摻入降低了smco薄膜的磁性能;制備態smco薄膜為非晶態結構,矯頑力hc隨著薄膜厚度的增加而減小,剩磁比mr ms隨膜厚增加而增加;經過500真空退火熱處理后,薄膜出現smcos的結晶物,矯頑力hc降低, mr ms減小,磁化機制由疇壁釘扎類模型轉為形核類模型。Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded. however, optically controlled phased array radar ( ocpar ) adopts the photoelectron technology, counteracts the aperture transition time via the method of optical true time delay ( ottd ), so it can realize wide instantaneous bandwidth and squint - free operation ; meanwhile, it can realize the miniaturization of phased array radar and has super anti - electromagnetism interference capability
而光控相控陣雷達採用光電子技術,通過光實時延遲的方法來抵消孔徑渡越時間,可以實現相控陣雷達的寬帶寬角掃描;同時也可以使得相控陣雷達小型化,並具有強的抗電磁干擾的能力;另外,由於光纖傳輸具有損耗低、頻帶寬等固有優點,採用光纖連接雷達天線和雷達控制中心,可以使兩者的距離較採用同軸電纜有較大的提高,更有利於保護雷達控制中心。1. based on magnetic domain energy theory, magnetomechanical effect of single cycle load is studied and it is analysed emulationally that magnetic memory characteristic parameters of single cycle load. magnitude and direction of accessional magnetic intensity are made sure of the ferromagnetism material derived from single cycle load
全文主要研究內容如下: 1 .基於磁疇結構的能量理論,對單周期載荷力磁效應進行了研究,並對單周期載荷磁記憶特徵量進行了數值模擬,確定了鐵磁性材料單周期載荷的應力附加磁化強度的大小和方向。Granule which dimension is millimeter only is used generally, the micron can have the ability of enhance, the nami will be exceed, the define of microscope granule measure is all of data which can be scaled and statistic included geometry, pileup, combination, make up, object shape, micro hole. the basic object which is discussed by the article and software is granule dimension ( length, granularity ) and orientation measure
毫米顆粒僅具常規性能和常規用途,微米( 10 ? 0 . 1微米)顆粒具增強功能(力學增強、流態化能力增強、磁力增強等) ,納米( 100 ? 0 . 1納米)顆粒具超常功能(韌性陶瓷? ?摔不碎,超硬銅材? ?硬度提高500 , 750度低熔銅、黑色白金、隱形材料等) 。分享友人