軸向擇優取向 的英文怎麼說
中文拼音 [zhóuxiàngzháiyōuqǔxiàng]
軸向擇優取向
英文
axial preferred orientation-
3 ) in shell of hyriopsis cumingii ( lea ), the prismatic layers and the nacreous layers are all composed of aragonite minerals, and aragonite crystallites in prismatic layers show obviously preferential orientation of [ 012 ] axis perpendicular to the shell layers, so it is considered that the orientation of aragonite crystallites in prismatic layers perhaps play an important role in deciding the orientation of aragonite crystallites in nacre and acts as one of template to resulting the formation of aragonite with [ 012 ] orientation perpendicular to nacreous layers in nacre
3 ）與海水貝殼明顯不同的是，三角帆蚌稜柱層礦物相與珍珠層一樣皆為文石相，同時查明稜柱層中文石晶體具[ 012 ]軸垂直殼層面的明顯的擇優取向。本文認為，三角帆蚌稜柱層中文石晶體的擇優取向可能對珍珠層中文石晶體的擇優取向存在模板導向的作用，導致珍珠層[ 012 ]定向的文石晶體的形成。The zn / o ratio, c - axis orented and stress were improved by annealing, and also redusing the defect of zno flim, increasing the size of grain. but too high annealing temperature was adverse to recrystallization of zno thin film
退火能改善zno薄膜的鋅氧比、 c軸的擇優取向和應力狀態，減少薄膜中的缺陷，使晶粒長大，但是過高的退火溫度不利於zno薄膜的重結晶，使zno薄膜的質量變差。All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate
本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜，採用原子力顯微鏡（ afm ） 、 x射線（ xrd ） 、 hall測試儀、紫外?可見分光光度計和x光電子能譜等分析測試手段，研究了樣品的表面形貌、晶體結構、光學和電學性能等。It was found that the obtained films were poly - crystalline and highly orientation growth with the c - axis perpendicular to the substrate surface
Xrd表明，制備的薄膜為多晶，具有c軸擇優取向。From xrd spectrum we can only find two diffusion peaks zno ( 002 ) and zno ( 004 ), showing that its crystal grain have high orientation along c axis
研究表明在linbo3上生長zno薄膜具有很強的c軸擇優取向， xrd衍射圖中只能觀察到zno的（ 002 ）和（ 004 ）衍射鋒。And then, zno thin films were synthesize on quartz and silicon substrates by sol - gel dip - coating and spin - coating. the properties of the films and the effects of growth parameters on the quality of zno films were studied using x - ray diffraction, optical absorption, photoluminescence techniques, etc. to modify the energy gap of the zno, mg2 + was added in the sol - gel solution, and mgxzn1 - xo films were prepared by the same method as that for zno films
利用溶膠凝膠法成功地在石英玻璃和單晶矽片等襯底上制備出了c軸擇優取向的zno薄膜，並利用x射線衍射儀、紫外-可見光光譜儀、熒光光譜儀等對zno薄膜的結構和性能進行了測試、分析，並研究了熱處理參數等條件對zno薄膜性能的影響。Moreover, the two - step heat treatment method was utilized in the preparation of the films, the films prepared by the first coating with 550 ? heat - treatment and the second coating with of with 500 ? heat - treatment ( b type films ) were highly c - axis oriented with smooth, dense and uniform surface morphology
此外，結合高溫和低溫熱處理方法優點的兩步熱處理法得到的b型薄膜同時具有較好的c軸擇優取向性和更為平整均勻的表面形貌。另外，在硅基板上也制備出了良好的c軸擇優取向性的摻雜氧化鋅薄膜。In this dissertation, high quality ( 002 ) textured zno films were prepared on silicon substrate using electron beam evaporation method. in addition, zno nano - particle material embedded into mgo thin films was prepared by a co - evaporation ( thermal and electron beam evaporation, simultaneously ) method and a following post - annealing process in oxygen ambient
本文介紹了採用電子束蒸發方法在si襯底表面上制備出了具有c軸擇優取向的高質量氧化鋅薄膜材料，另外，還採用共蒸發（通過電子束蒸發與熱蒸發同時進行）及後退火的簡單方法制備出包埋到介電物質mgo薄膜中的zno量子點材料。Two coating approaches were adopted, one was to do next coating after 550 ? heat - treatment ( called a coating technique ) ; the other was to do next coating after 100 ? drying, the films coated by several times were heated at 550 ? ( calied b coating technique ). xrd, sem, tem and afm were used to characterize the crystallization behavior, orientation and surface morphology of the zno thin films
運用xrd 、 sem 、 tem以及afm等對所得的樣品進行了分析和研究，結果表明：採用不同的旋塗工藝得到不同的薄膜厚度，而採用每次塗膜形成氧化物膜后再進下一次塗膜的方式能更好的保持zno薄膜的c軸擇優取向生長。Prepared technical parameters were optimized by l9 ( 34 ) experiment analysis. a unique method for cleaning and drying of substrate - cleaning used by scour, drying used by infrared light was fished out by large numbers of experiment. chemical mechnism of zno thin film prepared by sol - gel technique was discussed by dta for the first time. by the measurements of sem, xrd and uvs, the thin film was analysed. the result proved that the thin film with strongly preferred orientation of c - axis perpendicular to the substrate surface which surface was homogenous, dense and crackfree was the crystalline phase of hexagonal wurtzite. the thin film was composed of plentiful asteroidal crystal which crystal dimension approximately 10 30nm. the average transmittance of thin film in visible region was above 90 %. the results of measurements else also proved that the thickness of single dip - coating was 75 240nm, this films resistivity was found to be 3. 105 102 3. 96 105 ? cm. the thickness and resistivity of thin film influenced by dope - content, withdrawal speed, pre - heat - treatment, anealing were reseached respectively
利用xrd 、 sem以及uvs光譜儀等分析方法對薄膜進行了研究，結果顯示，所制備的薄膜為六方纖鋅礦型結構，具有高c軸擇優取向性；表面均勻、緻密，薄膜材料由許多星狀晶粒組成，晶粒尺寸大約為10 - 30nm左右；薄膜可見光透過率平均可達90 % ；對薄膜厚度以及電學性能進行了測定后發現：單次鍍膜厚度約為75 - 240nm ， al ~ （ 3 + ）離子摻雜型氧化鋅薄膜的電阻率在3 . 015 102 - 3 . 96 103 ? cm范圍內；分別研究了摻雜濃度、提拉速度、預燒溫度、退火溫度等工藝參數對薄膜厚度和電阻率的影響。Thu campus is in accord with modernized chinese architecture. courtyard is an archetype in china, but with proper accommodation, it can be apply to college life style. capitalizing its strength of consolidating family cohesion but disjoining the corner space, the new courtyard is affable, encouraging communication and connection between colleges
校園的主軸為現代化的中國建築，三合院是中國建築的基本空間單元，卻很適合獨立的學院的配置，建築師擇取合院凝聚向心力的優點，以及親切的尺度，院內任何一處總能清楚看到對面來人的樣貌，並聽到說話的聲音，拉近人和人之間的關系，並將角落的空間敞開，除去不必要的防禦功能，加強系院間師生的溝通互動。Main conclusions of this work are drawn as follows : 1 ) in nacre of hyriopsis cumingii ( lea ) shell, the aragonite crystallites exist two kinds of orientation, one. which is generally accepted, is the c axis of aragonite perpendicular to nacreous layers, the second, which is proposed in this paper, is the [ 012 ] axis of aragonite perpendicular to nacreous layers
本文所獲得的主要成果有： 1 ）明確提出三角帆蚌珍珠層中文石晶體的擇優取向除了存在公認的其c軸垂直珍珠層面外，還存在其[ 012 ]軸垂直珍珠層面的新取向。Zinc oxide ( zno ) is a wide band gap ( 3. 4ev ) semiconductor with the hexagonal crystal structure ( wurtzite type ). zno thin films with the c - axis orientation perpendicular to the substrate show excellent piezo - electrical properties and are widely used in piezo - electrical filed. and the dense anjd uniform surface of the films is required when zno thin films are used as integrated functional films
Zno屬於六方晶系6mm點群，晶體在c軸垂直面上的電性和彈性都是對稱的，因而c軸擇優取向的多晶薄膜能夠具有單晶那樣的壓電性和光電性質，而具有平整均勻的表面形貌則是zno薄膜作為一種集成功能薄膜應用性能的保證。分享友人