界面晶粒 的英文怎麼說
中文拼音 [jièmiànjīnglì]
界面晶粒
英文
boundary grain- 界 : 名詞1 (相交的地方; 劃分的界限) boundary 2 (一定的范圍) scope; extent 3 (按職業、工作或性別等...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 粒 : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
- 界面 : [物理化學] interface; boundary; limiting surface
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Two area defects are twins and grain boundaries.
有兩種面積缺陷,即孿生和晶粒間界。The globalization course was that the preformed texture recrystallized and became the granular equiaxed grain, when the temperature rose and the holding time prolonged, the granular grain melted at some area and at the liquid - solid interface the grain globalized at the role of the curvature overheated
過程機制為:擠壓形變組織在加熱過程中首先發生再結晶長大變為顆粒狀等軸晶;隨溫度升高和保溫時間延長,等軸晶發生局部熔化,液固界面的曲率過熱使晶粒外形向球狀轉變。As one kind of si nanostructures, si - rich si02 films are the important si - based light - emitting materials. moreover, silicon is the leading semiconductor in the microelectronic industry. furthermore si02 films as passitive and insular layers are widely used in si device and integrated circuit. so si - rich films are considered suitable for optoelectronic applications
另一種觀點認為納米硅薄膜中的可見光發射來自界面或介質層中的發光中心。還有人認為對于鑲嵌在sio _ 2中的納米晶粒來說,與氧有關的缺陷可能是導致可見光或藍綠光發射的主要原因。The macroscopic defects such as twins, small - cracking, scattering particles, growth layer and cores are examined ; they are related with the temperature difference between gas and melt : the twins and small - cracking come out when the difference is large, the bubbles and scattering particles come out when that is small
觀察到了孿晶、裂隙、雲層、生長層和核心等宏觀缺陷,晶體的這些宏觀缺陷與氣- -液界面溫差有較大關系:溫差大容易造成孿晶、裂隙等缺陷;溫差小容易造成氣泡、散射顆粒等缺陷。Sem, afm, epma micrographs indicate that pore size distribution of membranes is narrow ; thickness of membrane is about l - 2um and gradual interface between membrane and substrate is continuous and uniformity
Sem分析發現膜面較為平整、無開裂且晶粒輪廓清晰,孔徑分佈較窄,膜厚大約在1 2 m之間,膜與基體的界面連續較均勻。Often the vortex pinning can be increased by making the individual crystallites ( or grains ) of the material smaller, thus increasing the surface area associated with grain boundaries, where vortices get pinned
這是因為晶粒邊界面積的比例,會隨著晶粒的縮小而增加,而渦流就是固定在晶粒邊界上。We can lessen the dangling bonds and bug in order to improve the ion / ioff 、 vth by hydrogenation. in general, hydrogenation is prepared after completing of tft, in this way, we need more radio frequency power and time, so the cost of hydrogenation will raise
而通過氫化可以大大降低多晶硅薄膜晶粒邊界中的懸掛鍵和界面陷阱,從而顯著提高tft的場效應遷移率和開態電流,減少關態電流,提高tft的電學性能。The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties
微波磁場燒結的不但降低燒結溫度,縮短燒結時間,而且使磁體整體加熱,受熱更均勻,因而磁體晶粒更細小,並且主相晶粒邊界趨于規則化,晶間相的分佈更均勻;在常規燒結的磁體中則出現了晶粒異常長大現象,造成這一現象的原因,一方面可能是燒結溫度過高或燒結時間過長,另一方面可能是磨製的粉體均勻性較差,存在的大顆粒被許多細小顆粒包圍,在燒結過程中,大顆粒不斷吞併小顆粒,逐漸長大,而異常長大的晶粒自然會導致磁體性能的惡化。The gel c - s - h has the trend to crystallizing and transforming into low crystallized hydrates, which were similar to tobermorite. the incorporation of mineral mixtures improves greatly the orientation of ch either in interface zone or matrix zone and the crystal sizes also become small
由於礦物摻合料的晶核作用、填充密實和二次水化作用,明顯改善了界面過渡區和基體中ch的擇優取向,並且不論是在界面區還是基體中,結晶相的晶粒尺寸都發生了明顯的細化。The metastable austenitic phase of s s fiber at the interface of the fiber / cu composite would turn back to equilibrium with the interfacial energy and inter stain inducing, when the cu films were separated from s s fiber. so the magnetism value of the s s fiber declined. the information of grain - orientation at the interface of the fiber / cu composite can serve as a mechanism responsible for its declining coercivity, and a part of cu elements diffused into s s fibers
不銹鋼纖維銅復合體去除銅層后,原有的界面能及應力下降,使得原纖維界面處弱磁性的部分亞穩奧氏體,恢復到平衡態,它們對樣品s測試結果不再有貢獻;不銹鋼纖維銅復合體中,處于界面處的纖維晶粒具有很強的軸向取向排列,當晶粒取向性減弱,磁疇轉動的阻力增加,磁體的矯頑力上升。The results showed that the in - situ formed tibi particles which had a size of about 50nm, exhibited a homogenous dispersion in the copper matrix. moreover, the interface between the nanoscale particles and the copper matrix was clean, and there was no certain location relationship. due to their reinforcement, the tensile strength and hardness of the in - situ cu - tib _ 2 nanocomposite significantly improved
通過光學顯微鏡、 tem 、 xrd等對cu - tib2原位復合材料進行了金相組織、微結構分析,原位復合材料的鑄態金相組織中彌散分佈著團簇狀的tib2顆粒;形變態金相組織中tib2顆粒呈纖維狀排列; tem觀察表明:在基體內存在著尺寸約為50nm 、彌散分佈的tib2顆粒,且tib2顆粒與基體之間界面清晰,但由於tib2結構與銅晶體結構的差別較大, tib2顆粒與基體之間無固定的位向關系;納米tib對銅基體有良好的增強作用。On the surface of annealed 45 steel, as the pearlite in it contains cementite phase and has high crystal boundary density, the nucleation and growth of deposits prefer to occur at the pearlite at the beginning during depositioa the coating exists in form of nano - polycrystal layers composed by gathering of nano - sized crystals
在退火態45鋼表面,由於珠光體組織中含有滲碳體相且具有比較高的晶界密度,因而在沉積初期鍍層優先在此處形核和生長;鍍層在基體表面是以納米尺度的晶粒聚集在一起形成的聚晶體形式存在的。This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4
本論文以量子結構自組裝為出發點,提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒子自組裝;提出有機聚合網路原位組裝zns基納米熒光粉方法,把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成,適于低成本,批量生產;根據當前zno的研究情況,我們首次合成了非晶zno ,研究了它的光學性質,確定了它的結構,並對其摻雜進行了初步的研究,非晶zno表現出強的深紫外發光特性,而可見發射非常弱,是一種有巨大潛在應用價值的深紫外發光材料;利用非晶zno的亞穩特性,對晶化過程中非晶zno納米晶zno三維受限量子結構特性,界面特性進行了深入的研究;利用固相熱分解一般受擴散控制特性,實現了尺寸可控的zno三維量子結構的自組裝;利用非晶zno的高度分散性,容易均勻成膜特性,實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。It was found that the interfacial bonding of 93w - ofc was both the joining action of ofc / w grains and that of ofc / ni - fe binders, whereas the joining of ofc to tc4 could be seen as the mutual intense diffusion effect between ofc / tc4 and as a result cu - ti intermetallic compounds were formed at the joint. the joining of tc4 - a1 and a1 - mb2 were also attributed to the result of diffusion between elements ti - al and al - mg respectively. on the other hand, residual thermal stress and stress - induced distortion were produced at the joint simultaneously due to the difference in thermal expansion coefficient of different welding " materials
研究表明, 93w與ofc的界面連接是ofc與93w中w晶粒的連接以及ofc與93w中ni - fe粘接劑的連接共同作用的結果; ofc與tc _ 4連接界面的形成是由於ofc與tc _ 4之間發生反應擴散,並由此在二者接頭處生成了cu - ti金屬間化合物的中間相; tc _ 4 - al的連接與al - mb _ 2的連接則分別是其基體元素ti 、 al之間和al 、 mg之間元素互擴散的結果,另外,由於熱膨脹系數的差異,擴散焊接后在不同焊件的接頭處存在殘余熱應力並由此引起接頭的形變。The fiction coefficients of the five sliding pairs in different media were in the succession of, respectively. in distilled water : ual2o3 > ual2o3 / al2o3 > ual2o3 / al24zys > ual2o3 / al24zy > usic / sic in 1mol / l naoh : in air at 50 % relative humidity : and the friction coefficients of the sliding pairs a12o3 / a12o3, a12o3 / zta, a12o3 / a124zy and a12o3 / a124zys were in the order of u
當載荷為60n ,滑動頻率為10hz時,經過400om滑動距離后,在水中a12o3 / a1203 , a1203億ta , a12o3 / a124zy和a12o3 / a124zys摩擦副均不能形成有效的潤滑膜,屬邊界潤滑過程,磨損表面產生了裂紋,發生了晶粒拔出。The forming - nucleus drive power could form numerous little crystal nucleus under natural melting temperature. the formation of tic particles in the melt could be divided into two phases which was forming - nucleus and growth. the forming mechanism of tic was : melting ti first surrounded c, then ti melting in the alloy and c formed a complicated reaction mesosphere on the carbon surface
根據熱力學及動力學分析,認為在碳顆粒界面處tic的形核率很高,形核驅動力足以在正常的熔煉溫度下形成眾多的小晶核;熔體中tic顆粒的合成可分為形核與長大兩個階段,其形核機制為:首先活性ti原子包圍c ,溶入合金中的ti與c在碳表面形成一復雜反應中間層,隨著反應進行, ti和c顆粒不斷減少,生成的tic不斷彌散分佈於熔體中;其長大過程伴隨著tic顆粒的相互堆砌、聚集和形態規則化。Polarization microscope had observed that the size of sphere crystal of pp after adding organic rigid particles became smaller, the excellent compatibility of interphase between matrix and organic rigid particles in composite has been proved, and the organic rigid particles were drew out into cavities from matrix in the photograph of the impact breaking section by sem. the reason of enhanced toughness of the composite is that the material absorbed amount of energy at forming cavities, which is the mechanism of the pp composite toughened with the organic rigid particles
偏光顯微鏡顯示加入有機剛性粒子可使pp的球晶尺寸減小, sem觀察到復合材料中基體材料和剛性粒子的界面相容性較好,在沖擊破壞的材料斷面上,剛性粒子明顯被拔出形成「空穴」 ,這些微小空穴較易產生而吸收能量,從而提高了材料的斷裂韌性,這是剛性粒子復合聚丙烯的增韌機理。The multilayer composites ( cof3 # ) were prepared at 900 c by cofiring jd ferroelectrics and ty ferrite using tape casting processes
7h時,差別因子小於1 ,繼續增加保溫時間時,界面處晶粒尺寸將小於遠離界面區域的晶粒尺寸。The laws between the composition, structure, quality of materials of lc - hpc is studied by means of sem, mip, and so on testing measures. the reaction of hydration and filling effect of mineral admixture not only reduces the proportion of pore of structure and sizes and odds directional crystal of the unfavorable crystal phases such as ch but also leads to the mining of pore size, so it the effect improves the weak structure of interface transition area
應用sem 、 mip等測試手段,研究lc - hpc組分、結構與性能之間的影響規律,礦物摻合料的活性、填充等效應,降低了混凝土結構孔隙率,細化了孔徑,減小了ch晶粒尺寸及定向結晶幾率,從而改善界面薄弱過渡區結構。It was the first time that the silica nanoparticles was coated with gd2o3 : eu rare - earth oxides, then the core - shell structure compound particles were obtained. the characterizations showed that the thickness of uniform coating is in 10 - 20nm ; the silica core is linked with the gd2o3 : eu shell by chemical bond si - o - gd ; because of the size effects and interface effects of nano - crystal coating, the diffraction and emission peaks become broadened. and at the same time, the transfer temperature of silica from amorphous to crystal is decreased
首次在納米sio2表面包覆一層gd2o3 : eu稀土復合氧化物,得到了核-殼結構的復合顆粒,表徵結果表明,均勻包覆層的厚度為10 - 20nm ; sio2核和gd2o3 : eu殼層物質之間通過化學鍵si - o - gd鍵的作用結合在一起;由於包覆層納米晶的尺寸效應和界面效應使xrd衍射峰和熒光光譜發射峰出現了寬化現象。分享友人