晶粒間界 的英文怎麼說

中文拼音 [jīngjiānjiè]
晶粒間界 英文
crystal boundary
  • : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
  • : 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)
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : 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...
  1. Impurities tend to segregate at grain boundaries.

    雜質常常在晶粒間界偏析。
  2. Two area defects are twins and grain boundaries.

    有兩種面積缺陷,即孿生和晶粒間界
  3. 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長大變為顆狀等軸;隨溫度升高和保溫時延長,等軸發生局部熔化,液固面的曲率過熱使外形向球狀轉變。
  4. 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、無開裂且輪廓清晰,孔徑分佈較窄,膜厚大約在1 2 m之,膜與基體的面連續較均勻。
  5. 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,而且使磁體整體加熱,受熱更均勻,因而磁體更細小,並且主相趨于規則化,相的分佈更均勻;在常規燒結的磁體中則出現了異常長大現象,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過長,另一方面可能是磨製的粉體均勻性較差,存在的大顆被許多細小顆包圍,在燒結過程中,大顆不斷吞併小顆,逐漸長大,而異常長大的自然會導致磁體性能的惡化。
  6. The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively

    相對于傳統真空燒結, sps燒結方式成相速度快、樣品細小均勻、 mgb2超導芯緻密性好、連接優良,因而sps燒結樣品的臨電流密度明顯高於傳統真空燒結樣品,其中未摻雜的帶材樣品經過sps800 , 15分鐘燒結后,自場下的臨電流密度jc值在10k時達到8 . 64 105a / cm2 ,而且隨著測量溫度和外加磁場的增加, sps燒結樣品的臨電流密度下降率比傳統真空燒結樣品緩慢,在20k ,自場時為5 . 97 105a / cm2 , 20k , 3t時,臨電流密度值仍大於104a / cm2 。
  7. The boundary of ferrite has been clarified and fined by adding re into crsomo. the intergranular corrosion induced by solution chromium decreasing can be restrained for nb, v, ti combing carbon in the steel. the wear resistance of stainless steel can be increased for the precipitation of microalloyed carbides

    其中,稀土能夠凈化鐵索體,並起到變質劑的作用,細化鐵素體,改善不銹鋼的韌性;鈮、釩、鈦能夠與鋼中的碳結合,減少固溶鉻的損失,從而避免腐蝕,同時細小微合金碳化物的沉澱析出可提高不銹鋼的耐磨性。
  8. The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains. intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases. the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms

    原始上產生少量液相,形成薄的固液共存粘性層並包圍細化的,沿斷裂主要發生在無粘性層的細;而在較低應變速率下,三叉位錯攀援?蠕變協調機制鬆弛滑移產生的應力集中,上產生較多液相,有利於滑移進行。
  9. The surface of ce02 - ti02 films were very smooth and difficulty to crystallization. the ceo2 - tio2 complex films were nanocrystalline microstructure or microcrystalline even if to heat the substrates or to anneal the films. the ceo2 and tio2 nanocrystalline were not easy congregate and bigger because of heterogeneity interface disturb and have many defect

    組成ceo _ 2 - tio _ 2混合薄膜顆徑在納米尺度范圍3 ? 50nm ,與純ceo _ 2 、 tio _ 2薄膜相比,具有更小的表面粗糙度和更難結,這是由於異質材料的相互干擾,使同質顆難于聚集而結長大,薄膜處于納米或雛態,即使加熱基片或薄膜進行熱處理也無明顯變化。
  10. Although the resistance to oxidation increases with the increase of tungsten, the netlike carbides distributed along the crystal boundary including m2c, m6c and complex carbides manifold by means of the analysis of optical microstructure, xrd and reckoning the volume fraction of carbides by lattice

    1變質時;大小在扣100pm之問,而網狀碳化物明顯細化,網狀碳化物處在10 30um之;用1 4 re1i mg復合變質后,大小在10 50um之,網狀碳化物處在10 20um之,組織細小而均勻,絕大部分碳化物呈斷網狀分佈。
  11. 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;形變態金相組織中tib2顆呈纖維狀排列; tem觀察表明:在基體內存在著尺寸約為50nm 、彌散分佈的tib2顆,且tib2顆與基體之面清晰,但由於tib2結構與銅體結構的差別較大, tib2顆與基體之無固定的位向關系;納米tib對銅基體有良好的增強作用。
  12. From an examination of the tensile behavior of cz ly12 alloys under different temperature and strain rate, two kinds of deformation and intergranular fracture behaviors were observed that were opposite to the characteristic strain rate range in fine - grained superplasticity. the mechanisms are described as follows. the high ductility achieved at high strain rate is generally attributed to the dominant role of gbs accommodating mechanisms, which is considered as dislocation creep within grains controlled by subgrains

    研究選用自然時效淬火態的ly12鋁合金,進行了一系列不同溫度和應變速率下的單軸拉伸試驗, 480下,觀察到與傳統細超塑性特徵區相反的行為:較高應變速率下,動態再結使細化,促進了滑移,亞控制的內位錯蠕變是滑移的主要協調機制。
  13. The physical properties of cerarnics are ciosely related to their microstructure such as the grain scale, grain boundny, grain orientation, etc. it ' s helpful for the development

    陶瓷的物理性能與其相應的微觀結構之存在著密切的相互聯系,如尺度、取向等都對物理性能有影響。
  14. 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的面連接是ofc與93w中w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連接面的形成是由於ofc與tc _ 4之發生反應擴散,並由此在二者接頭處生成了cu - ti金屬化合物的中相; tc _ 4 - al的連接與al - mb _ 2的連接則分別是其基體元素ti 、 al之和al 、 mg之元素互擴散的結果,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。
  15. 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核;熔體中tic顆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層,隨著反應進行, ti和c顆不斷減少,生成的tic不斷彌散分佈於熔體中;其長大過程伴隨著tic顆的相互堆砌、聚集和形態規則化。
  16. The flexural strength and fracture toughness of ti3sic2 material obtained by hot - pressing is 223mpa and 5. 1 mpa m1 / 2 respectively ; the mechanisms of grain bending, grain delamination, crack deflection inside the layered grain, crack deflection and branch, pull out grain are main energy absorbing mechanisms

    ~ 1ti _ 3sic _ 2材料的彎曲強度和斷裂韌性分別為223mpa和5 . 1mpa ? m ~ ( 1 / 2 ) 。主要能量吸收機制為:的彎曲、層滑移,裂紋在層擴展與偏轉,裂紋在沿擴展、分叉和的拔出。
  17. 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 ,繼續增加保溫時時,面處尺寸將小於遠離面區域的尺寸。
  18. 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尺寸及定向結幾率,從而改善面薄弱過渡區結構。
  19. 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,表徵結果表明,均勻包覆層的厚度為10 - 20nm ; sio2核和gd2o3 : eu殼層物質之通過化學鍵si - o - gd鍵的作用結合在一起;由於包覆層納米的尺寸效應和面效應使xrd衍射峰和熒光光譜發射峰出現了寬化現象。
  20. Different element in some interface change in evidence, but different element in other interface change gradually. the interface often have some hole and a mass of one element. in w - mo fgm, because the different rime temperature, the size of mo grain differ from the size of w. in w - mo - ti fgm, mo - ti layer rich in ti, there are more polygonal a

    顯微組織特徵研究表明, w - mo系和w - mo - ti系梯度功能材料整體緻密,有的宏觀層面明顯,在面處成分發生突變,而且還有氣孔、顆偏聚等缺陷,有的宏觀層面處成分變化平緩; w - mo系梯度功能材料由於w 、 mo的再結溫度不同,梯度層顆徑有顯著差異; w - mo - ti系梯度功能材料中,以ti為主的mo - ti混合區,主要以多角形固溶體存在,富ti區主要以多角形相存在。
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