鈣鐵鈦礦 的英文怎麼說
中文拼音 [gàitiětàikuàng]
鈣鐵鈦礦
英文
cafetite-
Role of heat treatment on the formation of perovskite phase of pmn - pt relaxor ferroelectric thin films derived from inorganic - chelating - gel
弛豫鐵電膜鈣鈦礦相形成的作用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The development of research on perovskite materials doped with ions and particles, sol - gel technique and sol - gel processing of pbtio3 ( pt ) based materials were intensively reviewed. the luminescence theory of rare earth ions and the properties of carbon nanotube ( cnt ) were introduced briefly
本文全面回顧了離子和微粒摻雜改性鈣鈦礦相鐵電材料的研究進展，總結了溶膠凝膠技術在制備此類材料中的應用，並簡要介紹了稀土離子發光機理和納米碳管的性能。Determination of iron, calcium, magnesium, molybdenum, titanium and vanadium in uranium ore concentrate by atomic absorption spectrometry
鈾礦石濃縮物中鐵鈣鎂鉬鈦釩的測定原子吸收光譜法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。The crystal structure of the quantum paraelectrics is mainly perovskite type, similar to most of the ferroelectrics, and external factors, e. g. impurity doping, may induce ferroelectric phase
量子順電體的結構和鐵電體很相似，大部分屬于abo _ 3的鈣鈦礦結構，所以應力或摻雜等易使之成為鐵電體。In this work, the influences of fabrication process on microstructure, dielectric properties, ferroelectric properties and pyroelectric properties of plt films have been studied. plt films were prepared on the pt ( 111 ) / ti / sio2 / si ( 100 ) substrates by radio frequency magnetron sputtering method and then annealed by rapid thermal annealing process ( rta ) or conventional furnace annealing process ( cfa ). with the help of atom force microscopy ( afm ), x - ray diffraction ( xrd ) and some other apparatus, it was found that : lower substrate temperature ( ts ) was helpful for plt films to form better surface morphologies. with the increase of substrate temperature, the dielectric constant of plt films increased
Afm 、 xrd以及性能測試結果表明:較低的基片溫度有利於形成表面均勻緻密的薄膜，且薄膜的表面粗糙度均方根較小;隨著基片溫度的升高，經過快速退火的plt薄膜的介電常數逐漸增大;相比于傳統退火，快速退火縮短了退火時間，提高了薄膜的介電和鐵電性能;快速退火隨著保溫時間的延長，大部分鈣鈦礦結構的特徵峰的峰強增大，半高寬減小，峰形越來越尖銳，但當保溫時間為80s的時候， （ 100 ）和（ 110 ）峰的強度有所下降，因此保溫時間在60s較為適宜。Dielectric and pyroelectric properties of lead - based perovskile - type structure ferroeletric thin films
鉛基鈣鈦礦型結構鐵電薄膜的介電及熱釋電性能研究Because of the expedient modulation of curie temperature tc to room temperature, the larger dielectric - temperature coefficients, pst materials are favorable to be used in microwave tunable devices
其還是一種互溶性較好的鈣鈦礦鐵電材料，其居里點溫度t _ c可較容易地調至室溫附近，介電溫度系數較大，是一種非常適用於電場調節元件的材料。分享友人