crystal-crystal transition 中文意思是什麼

crystal-crystal transition 解釋
晶-晶轉變
  • crystal : n 1 結晶，（結）晶體；晶粒；水晶（＝rock crystal）；石英。2 【無線電】晶體。3 結晶玻璃；雕玻璃；...
  • transition : n 轉變，演變，變遷，變化；飛越；過渡期；【音樂】變調，轉調；【修辭學】語次轉變；【語法】轉換；【...
  1. The results indicate that in niobate glasses, as the concentration of nb2o5 increases, the covalence becomes strong, the symmetry becomes low and the electron - phonon coupling becomes strong, thus the lifetimes become short, the nonradiative transition processes and the temperature - quenching become strong and the value of crystal field parameter b20 becomes small

    （ 6 ）研究了妮硅與妮磷系列玻璃發光特性與組份的關系，發現隨著nbzos濃度的增加， eu一o鍵共價性增強，局域環境對稱性降低，電一聲子禍合增強從而導致sd 。
  2. The fluorescence intensity of pb became weak when the crystal phase began to form in tha the lattice vibration absorbed the energy induced by the fluorescent transition

    隨著體系中晶態的生成， pb離子進入晶格中，由於晶格振動所產生的聲子吸收了躍遷回落產生的發光能量， pb離子的熒光強度明顯下降。
  3. Hence we combined coprecipitation method, using zinc carbonate as enclosure dose causing the crystal nucleus can not grow up, zinc titanate acts as phase - transition accelerant, thereby we can obtain rutile nanometer tio2 powder at lower calcining temperature and in briefer calcining time relatively

    因此我們結合共沉澱法，引入碳酸鋅作包覆劑控製品粒長大，利用鈦酸鋅作品型促進劑，在相對較低的焙燒溫度和較短的保溫時間內制得到了金紅石型納米tio _ 2粉體。
  4. Main curricula : thermodynamic of material, crystal structure and the technology of x - ray, the principle of the solid state phase transition, the force behavior of material, metal material science, surface engineering, mate and engineering, the application of computer in material science

    主要課程:材料熱力學，晶體結構和x射線學，固態相變原理，材料力學性質，金屬材料學，表面工程，材料成型原理與工藝，計算機在材料科學中的應用
  5. The infrared analysis show that the a small quantity of transition of crystal form from a into y of nylon and its composites happen during dry friction because of the high temperature and strong sheering strength

    紅外分析顯示在干摩擦磨損過程中，磨損表面在高溫及強剪切力的作用下，發生了少量晶型到晶型的轉變。
  6. Decreasing cell thickness will increase the influence of surface interaction to mid - cell phase transition, and increase the temperature, anchoring field strengths region for biaxial phase. at very high value of hc, phase symmetry in mid - cell lags behind that in surface. keywords : liquid crystal, phase transition, surface energy

    對有限厚度液晶盒，減少盒厚可增加表面相互作用對系統的影響，使雙軸相所在溫度區域增加，表面與盒中心液晶的對稱性並非總是同步，當| h _ b |較大時，盒中心液晶雙軸相的對稱性明顯滯後於表面。
  7. Crystal structure and metal - insulator transition properties of dc magnetron sputtered la0. 825sr0. 175mno3 films

    直流磁控濺射沉積錳酸鍶鑭薄膜的結構與相變特性研究
  8. In this pcm, polyethylene glycol ( peg ) has been taken as functional branches, with which the energy storage and energy release can be proceeded by phase transition between its crystal state and amorphous state

    利用聚乙二醇從結晶態到無定形態之間的轉變，實現該材料的儲能和釋能，整個過程中材料始終保持為固體。
  9. Phenyl group introducing to cholesteryl ester molecules can enhance the phase transition temperatures of the liquid crystals and their stability. an increase in the chain length for cholesteryl dicarboxylate samples reduced stability of liquid crystal phases. while coattail - like structures on the ester group of the molecules have an adverse effect to form cholesteryl liquid crystal phase

    化學結構對液晶性的影響表現為：分子中引入苯環剛性結構可以提高液晶的相變溫度和穩定性；脂族二羧酸膽甾醇酯中脂肪鏈的長度增加會降低液晶的穩定性；而末端含有燕尾結構則對液晶態的形成產生不利影響。
  10. Particle size distributing and the composing of crystal phase were discussed by the orthogonalizing design. the experiments showed that the most suitable process conditions should controlled as follows : process temperature was about 30c ; the ratio of tnb " water and solvent was l : 4 : l 0 : the calcined temperature was about 600 " c. such transition metal ions as fe3 +

    實驗表明，合適的反應條件是：以醋酸為負催化劑，水解溫度應控制在30左右，鈦酸丁酯與水量、溶劑量的配比應為1 ： 4 ： 10 。另外得到比較單一的銳鈦型tio _ 2煅燒溫度應控制在600左右。
  11. The formation process of w - type ferrite underwent from oxide of metal, the m - type transition phase to final w - phase. when the heating rate was 5 / min, at 900 for 3 hrs and 1200 for 4 hrs, pure m - type and w - type ferrites were formed in air respectively. with heat treatment temperature increasing, crystal structure was more intact, the saturation magnetization increased and the coercive force decreased

    熱處理過程表明， m型鐵氧體直接由金屬氧化物反應形成，未經歷尖晶石中間相； w型鐵氧體形成由金屬氧化物到m相過渡相最終向w相的轉變；當升溫速率為5 min ，溫度在900 ，保溫3小時和1200保溫4小時，就分別形成單相m相和w相鐵氧體；隨著熱處理溫度的升高和保溫時間的延長，衍射峰變尖銳，結晶更完整，空心微球的飽和磁化強度增大，矯頑力減小。
  12. Vo _ 2 is a typical thermochromic material. with the increase of temperature, the semiconductor - to - metal transition will occur at 68 c ; with the abrupt change of vo _ 2 crystal structure, electrical resistance and optical index of refraction transmissivity and reflectivity will change, which results in great application potentials in many fields

    Vo2是一種相變型金屬氧化物，隨溫度的升高，在相變溫度（ tc = 68 ）發生從低溫單斜結構向高溫四方金紅石結構的轉變，同時，伴隨著電阻率和紅外光透過率的突變。
  13. 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
  14. The research on the effect of liquid - liquid transition of polyacrylate on crystallization - melting of pdms indicates that above the melting temperature of pdms, pdms is reinforced by a special mutual action between p - electron in carbonyl of polyacrylate and 3d orbit in si atom of pdms, while below the temperature, the pdms crystal is lessened, which can not completely remove the crystal of pdms. however, it is the crystallization behavior of pdms that results in its most segments relaxation being restrained

    研究聚丙烯酸酯液一液轉變對聚二甲基硅氧烷結晶一熔融影響的結果表明：碳基碳原子上p電子與出原於中3d軌道相互作用，在聚h甲基硅氧烷熔融轉變溫度以上，對其有分子增強作用；在聚二甲基硅氧烷熔融轉變溫度以下，霎對其有降低結晶度的作用，但不能消除結晶現象。
  15. Q. q. gou, x. q. wang and j. f. meng, theoretical calculation for the equation of state and phase transition of lithium hydride crystal, high pressure research, 6, 141 ( 1991 )

    王新強、茍清泉，用離子重疊-壓縮模型對堿金屬氫化物晶體中h -離子壓縮規律的研究，高壓物理學報， 7 ， 161 （ 1993 ）
  16. Plastic deformation happened in the worn surface where fe element was found, so pam micro - fiber supported part of the load and prevented the further deformation. on the condition of high speed and high load, the worn surface of pam1 / nylon 6 composites was nearly melted and formed comparative uniform transfer on the surface of steel, which accounted for the rather low wear mass loss. the infrared analysis showed that the a small quantity of transition of crystal form from into of nylon and its composites happened during the friction because of the high temperature and strong sheering strength

    通過對復合材料耐磨性能研究表明：復合材料的摩擦系數隨載荷的增加而逐步下降，且磨損表面有明顯的塑性變形；從能譜分析結果來看，復合材料表面有fe的存在，表明pam微纖承受了部分載荷，並阻止了基體的進一步塑性變形及粘著轉移；在高速高載時， pam1 /尼龍6磨損表面處于粘流態，並在鋼環表面形成了連續的轉移膜，表現出較好的耐磨損性能，且在高溫和強剪切力的作用下，材料基體發生了少量的晶體向晶體的轉移。
  17. Also shown by afm images are the regular features of crystals and ordered crystal domains for the film grown on 200 substrates, the morphologies indicate a phase transition, which is clearly confirmed by contrast between ( 0, 0 ) and ( 0, 1 ) absorption features and the bathoshift of ( 0, 0 ) absorption peak corresponding to the temperature of the substrate

    Afm圖像同時顯示，在200的襯底上生長的薄膜具有規則的晶體外型和有序排列的微疇，說明存在結晶轉變。 f - ptcdi薄膜的吸收光譜的（ 0 ， 0 ）和（ 0 ， 1 ）性狀的強度對比與紅移程度隨襯底溫度的變化清晰地表現出150到200之間存在一個相變， dsc測試說明該轉變是從低有序到高有序度的轉變。
  18. The property of freedericksz transition and the bistable state for nematic liquid crystal ( nlc ) cell in the surface physics of liquid crystal ( lc ) have been one hot point of current lc science

    液晶錶面物理中弱錨定向列液晶盒的freedericksz轉變的性質以及與此相連的雙穩態問題是目前液晶科學的一個熱點問題。
  19. The study shows that the former is main reason of the reentrant phase transition of system, while the later is not contribute to reentrant phase transition. on the other hand, when the crystal field is small, magnification of the range of magnetic ordering phase at low temperatures come from the contribution of spin - 1 sublattice, while the result is not discovered in spin - 1 / 2 sublattice

    晶場存在時，前者是系統重入相變的主要原因，而後者對重入相變沒有貢獻；另一方面在較小晶場存在時低溫區磁有序相范圍的擴大來自於自旋1子格中橫場及隨機的作用，而自旋1 2子格沒有發現類似現象。
  20. We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band

    另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。
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