鐵電學 的英文怎麼說
中文拼音 [tiědiànxué]
鐵電學
英文
ferroelectricity-
Chemical synthesis of ferrate iron and its electrochemical properties
高鐵酸鹽的化學合成及高鐵電極的電化學性質研究Multiferroelectric magnetoelectri materials have a spontaneous polarization that can be reoriented by an applied electric field, a spontaneous magnetization that can be reoriented by an applied magnetic field. these materials have been exploited as transducer, waveguides, switches, phase inverters, modulators, etc. which also find a lot of technological applications in radioelectronics, optoelectronics, microwave electronics in instrumentation
這類材料同時具有鐵電和鐵磁材料的性能可以應用到傳感器，波導器件，轉換器，相位倒相器，變頻器，調節器等，在無線電電子學，光電子學，微波電子學等領域的發展具有重要意義。Among various fabrication techniques of thin film, the sol - gel process has gained much interest for the preparation of pzt thin film, due to ihe advantages of good homogeneity, easy control of composition, low in - ill i reaving temperature, easy formation of large area thin films pb ( zrxti : - k ) 0 :, ( pzt ) films were prepared on the ito coated glass plates and low resistor silicon wafer in sol - gel dip - coating process associated wi di heat treatment : at different temperatures and characterized by x - ray diffraction ( xrd ) and transmission electron microscopy ( tem ). lt is shown that the pzt ferroelectric thin films with ( 110 ) preferred orientation and well - crystallized perovskite structure can be obtained after annealing at 680 ? for 30 minutes on ito substrate and at 800 " c for lornin on silicon substrate
Pzt的制備方法有很多，其中溶膠?凝膠（ sol - gel ）方法可以和集成電路（ ic ）光刻工藝相互兼容，處理溫度低，有大面積塗敷性能，能精確地控制組分，無需復雜的真空設備，成本低廉，所以對于集成鐵電薄膜電容的應用這種方法有很廣闊的前景。本文利用sol - gel技術在摻錫的in _ 2o _ 3透明導電薄膜（ ito ）襯底和低阻硅襯底上成功地制備了pzt鐵電薄膜。運用了x射線衍射， sawyer - tower電路和lcr電橋分別對薄膜的晶化溫度，結構和電學性能進行了測試。Standard test methods for chemical analysis of carbon steel, low - alloy steel, silicon electrical steel, ingot iron, and wrought iron
碳素鋼低合金鋼硅電工鋼鐵鑄錠和熟鐵化學分析的標準試驗方法Lead lanthanum zirconate titanate ( plzt ) and strontium barium titanate ( bst ) thin films are excellent materials for the potential applications in optical waveguide and optical commutation, due to their excellent electrical, optical and electro - optical ( e - o ) properties
Plzt 、 bst鐵電薄膜具有良好的光學、電學和電光性能，因而在光波導、電光開關等方面具有廣闊的應用前景。Methods for chemical analysis of ferrovanadium. the potentiometric method for the determination of vanadium content
釩鐵化學分析方法電位滴定法測定釩量Preparation and optical properties of ca - modified lead titanate thin films
溶膠凝膠法制備鈣改性鈦酸鉛鐵電薄膜及其光學性質研究In recent years, lead zirconium ti tanate pb ( zrxtii - ? on, ( pzt ( x / l -. x ) ) ferroelectric thin films have been extensively applied to many high - tech fields because of their excellent ferroelectric properties such as high dielectric constant, low dissipation factor, nonvolatility and so on
鋯鈦酸鉛（ pzt ）薄膜具有優良的介電、鐵電、壓電和光電特性，且抗輻射性強，不揮發，已廣泛地應用於微電子，集成光學和微機械繫統（ mems ）等高技術領域。Abstract : based on the ahievement of epitaxial growth in several perovskite oxide films, we discuss the importance of substrate temperature ( ts ) and substrate material in the epitaxial growth of perovskite oxide thin films. influences of ts on growth orientation and epitaxial threshold temperature were observed. the results indicate that during the growth of the oxide films the phase formation and growth dynamics should be taken into consideration. the threshold temperature for epitaxial growth depends on the substrate materials. this demonstrates the influence of substrate material on the initial nucleation and epitaxial growth
文摘:在成功地外延生長超導、鐵電、鐵磁等多種性質的鈣鈦礦結構氧化物薄膜的基礎上，討論影響氧化物薄膜外延生長的一些因素.考慮到相形成和薄膜生長動力學，在利用脈沖激光淀積法外延生長氧化物薄膜中襯底溫度是十分重要的工藝參數.襯底溫度對成相和生長薄膜的取向都有影響.考慮到薄膜是首先在襯底表面成核、成相併生長.因此襯底材料晶格的影響是不容忽視的.觀察到襯底材料對薄膜外延生長溫度的影響.在適當的工藝條件下，利用低溫三步法工藝制備得到有很強織構的外延薄膜.這突出表明界面層的相互作用對鈣鈦礦結構薄膜的取向有著相當大的影響Some novel results are obtained, which will not only provide some theoretical bases for the optimal design and performance improvement of real thermodynamic cyclic equipments such as ferroelectric refrigerators, magnetic refrigerators and gas heat engines but also promote the development of new fields such as gas refrigerators for ultra - low temperature applications, molecule refrigerators and laser refrigeration technologies
這些結論將對鐵電製冷機、磁製冷機、氣體熱機等實際的熱力學循環裝置的優化設計或性能改善提供理論指導，對極低溫下的氣體製冷機、分子製冷機和激光製冷技術等新領域也將所啟發和促進。The metal magnetic memory testing is a new technology which is special diagnose ferromagnetism materials with applied stress in earlier, and is belong to electromagnetic non - destructive testing ( ndt ). so the fundamental theory of ferromagnetics and the mechanics property and the electromagnetism property of metal is the theoretical foundation, some knowledge connected to them are summarized in this dissertation
磁記憶無損檢測技術是專門針對受力鐵磁性材料實施早期診斷的新型無損檢測技術，其檢測的范疇還是屬于電磁方法檢測，因此有關鐵磁學的基本理論、金屬的力學特性以及電磁特性等是研究磁記憶無損檢測的理論基礎，本論文針對有關這方面的一些基本知識作了簡要的總結。The fitness of four negative electrode materials such as al, fe, zn, cd, and of six membranes materials : microfiber glass mat separator, polyethylene, polypropylene, polyvinyl chloride, vinylon, soapnated cellulose acetate, and of four current collects : carbon fiber ; nickel foam ; nickel foam sthongthened by iron wire net, punched silver grid in the super - iron alkaline batteries was comparatively studied. the influence of two storaged method ( with and without electrolyte ) and two impurities ( zno, fe ( oh ) 3 ) to the experiment cell ' s self - discharge nature was also comparatively studied. at last, the nature of discharge. structure and electrochemistry of experimental cell with k2feo4 as cathode active material prepared by three different methods : high temperature reaction, hypochlorite oxidizing and electrolysis, was comparative ly studied. we can conclude : i ) the open - circuit potential and the flat of work potential and the percent of capacity of k2feo4 till 1. 0v during the discharge at constant load of experimental cells decreased by the order of al / k2feo4, zn / k2feo4, cd / k2feo4, fe / k2feo4. as for the nature of charge - discharge cycle, cd / k2feo4 fe / k2feo4 zn / k2feo4. in water solute electrolyte, although al / k2feo4 can n ' t be used as storage battery, it have great potential as primary cell or storage cell from the aspect of its discharge capacity. discharge power
採用組裝實驗電池、 x -射線衍射（ xrd ）和循環伏安（ cv ）的方法，從實驗電池的放電特性、充放電循環特性、自放電特性，不同高鐵酸鹽的結構特性和電化學特性幾個方面，對4種金屬負極材料（ al 、 fe 、 zn 、 cd ） 、 6種隔膜材料（復合玻璃纖維、幅射接枝聚乙烯、改性聚丙烯、聚氯乙烯、維尼綸無紡布、皂化再生纖維素） 、 4種集流體材料（泡沫鎳、以鐵網為加強層的泡沫鎳、切拉銀網、炭纖維編織網）在堿性高鐵電池中的適用性進行了比較研究；對2種雜質組分（ zno 、 fe （ oh ） _ 3 ）和2類不同貯存方式（干、濕）對實驗電池自放電特性的影響進行了比較研究；對3種方法（高溫固相反應、次氯酸鹽氧化、直流電解）所制k _ 2feo _ 4的實驗電池的放電特性、結構特性和電化學性能進行了比較研究。Dynamic analysis of polar microregions in therelaxor ferr oelectrics
馳豫鐵電體中極化微區動力學分析Accordingly, a new framework, which provides a common scheme for the numerical simulation on the macroscopic behavior of ferroelectrics though multi - scale analysis on the coupled thermo - electrics - mechanical behavior of multiphase in heterogeneous material, is induced to construct the effective constitutive equation of multiphase. in chapter four, based on the law of domain nucleation and domain wall motion of 1800 domain switching, a new scheme of domain switching and numerical simulation approach is put forward on the foundation of thermodynamics. driving traction, nucleation criterion, velocity of domain wall motion, kinetic relation and rate of domain switching in a single grain are given
第四章以鐵電體1800疇變的過程中形核規律和疇界運動規律的實驗觀察結果為基礎，根據熱力學理論建立鐵電體疇變的理論框架和數值模擬方法；給出了單疇內疇變驅動力、新疇形核準則、疇界運動速度公式、疇變動力學的表達式，單晶的疇變速率公式；用細觀力學的觀點給出了對多晶鐵電體多場耦合的有效性質進行包含疇變速率影響的多尺度分析方法。The substitution of a - site cation ln can induce significant effect on the magnetization and polarization, nevertheless b - site cation can induce more effect on the polarization of perovskite structure. as a result, the doping of titanate which had typical high dielectric behavior would have significant effect on the research and development of novel multiferroelectric magnetoelectric material
A位離子ln的取代可以對材料的磁化性能和極化性能產生影響，然而由於b位離子對鈣鈦礦結構的極化可能產生更大的作用，因而具有典型高介電行為的含ti鈣鈦礦結構的引入將可能對新型復鐵電性的磁電子材料的開發研究產生很大的影響並具有非常重要的科學意義。Moreover, the regenerative characteristics of the ferroelectric stirling and ericsson refrigeration cycles are analyzed, based on the common criterion that a thermodynamic cycle may possess the condition of perfect regeneration
進而利用熱力學循環具有理想回熱條件的普遍判據，分析了鐵電斯特林製冷循環和埃里克森製冷循環的回熱特徵。Polymer networks have been produced in a variety of liquid crystal phases in cells without surface treatment. the liquid crystal / monomer mixtures are prepared using a ferroelectric liquid crystal and a diacrylate monomer. the polymerisation of the monomer is carried out by uv curing the mixture when it was kept in a specific phase which can be obtained by controlling the temperature of the ferroelectric liquid crystal. both the monomer and the polymer network will depress phase transition temperatures. the effects of the polymer network on the packing arrangement of the ferroelectric liquid crystal molecules are examined by means of optical microscopy. the molecular packing arrangement of the ferroelectric liquid crystal in a specific mesogenic phase is frozen on the formation of a polymer network in the ferroelectric liquid crystal in that phase. the existence of the diacrylate based polymer network can improve the electrooptical switching of the ferroelectric liquid crystal
在灌裝于未經表面處理的樣品盒內處于不同狀態的液晶中制備聚合體網路.液晶/單體混合物由鐵電液晶和雙丙烯酸單體製成.單體的聚合通過維持該混合物處在一定的液晶態的條件下經紫外線固化來完成.不同的液晶態可通過控制鐵電液晶的溫度來獲得.雙丙烯酸單體或聚合體網路的存在會導致鐵電液晶載體的相變溫度降低.通過光學顯微鏡可觀察聚合體網路對鐵電液晶分子組合排列的影響.結果發現:在某一液晶態中鐵電液晶分子的組合排列可被在該液晶態中聚合而成的聚合體網路所穩定，雙丙烯酸基聚合體網路的存在可改良鐵電液晶的電光開關特性4. mixture was made of chiral additive and liquid crystal polymer, which properties were studied. whether the mixture has ferroelectricity has been discussed, which would establish some bases for the research and application of the liquid crystal display materials and nonlinear optical materials in future
將液晶手性添加劑和液晶聚合物共混，並研究了共混物的性能，探討了共混型丙烯酸酯類液晶聚合物的鐵電性能，為將來的液晶顯示材料及非線形光學材料的研究及應用奠定了基礎。In the experiments, we aim at the study of preparations, analysis, characterization and electrochemistry of green super - iron batteries
本文通過綜述電池研究的進程和發展趨勢，研究了高能超鐵電池及其電化學性能。The electrical and mechanical boundary conditions are obtained considering the characteristics of layered ferroelectrics ; the local electric - mechanical response equations of each structural layer of units are derived under the coupling of electric and mechanical loads. various calculations are conducted when the volume fraction of each layer differs, as well as when the ratio of yang ' s modular between layers changes. the influence of these factors to material performance is studied
重慶大學博士學位論文應用提出的模型與方法，針對層狀微結構鐵電材料的具體特點，進行了計算與分析，包括:建立了層狀鐵電材料的力電場邊界條件，推導出在外加力電場作用下的各層材料的局部力電響應的表達關系。分享友人