晶粒對比 的英文怎麼說

中文拼音 [jīnglìduìbǐ]
晶粒對比 英文
grain contrast
  • 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）
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  1. Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys

    開創性地用預燒結? ?酸洗工藝制備了相同粒度、不同beo含量的鈹粉，從而開展了beo含量單獨對鈹材_ （ mys ）影響的研究，得出一些新的結果：與beo含量相比， beo在鈹中的分佈狀態對_ （ mys ）的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用，使_ （ mys ）即較高；如果beo較粗大地成簇狀聚集在晶界，反而對_ （ mys ）有不良的影響。
  2. Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation

    為解釋微合金化50crv鋼強韌化機理，本文通過對不同淬火溫度，回火溫度，回火時間下的力學性能指標的對比及顯微分析，認為微合金元素的細化晶粒，馬氏體的回火分解，殘余奧氏體的轉變，第二相的沉澱析出共同決定了微合金鋼的強韌化情況，特別是由於微合金元素的存在，其細化晶粒及其碳氮化物的沉澱析出，導致鋼的良好的強韌性，並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應，會在硬度曲線中產生明顯的二次硬化現象。
  3. It was concluded that, the structure of ito thin films were influenced by many working parameters such as substrate temperature, oxygenous pressure and substrate and so on. it was indicated by sem spectra of zno thin films that the surface of the sample was leveled off, and the crystals were felsitic

    結果表明，對于ito薄膜，薄膜的光電性能薄膜結構的擇優取向性和與襯底溫度、濺射氧氣壓等工藝參數有很大關系， ito薄膜的sem表明，樣品表面較平整，且晶粒也比較緻密。
  4. The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large

    通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到， pp mmt _ （ ome ）屬于完全插層， pp mmt _ （ om ）與pp ommt的插層程度相近，但是pp mmt _ （ om ）相對較好；通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現，蒙脫土納米片層對pp結晶產生明顯的異相成核作用，結晶能力增強，使pp的結晶溫度和結晶速率提高，結晶度增加，球晶晶粒細化，但是沒有改變pp的結晶形態，三種pp mmt納米復合材料的結晶形態都屬于晶；通過對pp mmt納米復合材料的力學性能測試得知，蒙脫土的加入全面提高了pp的力學性能，缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高，浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大，不過ommt 、 mmtom和mmtc ） me三種蒙脫土對pp力學性能有著不同的改性作用，其中pp / mmtom最好， pp月邊mto崛次之， pp / ommt最低，這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。
  5. The quality of buffer layer and thin films was analyzed by afm, xrd, rheed and xps respectively. the effect of the experimental parameters such as carbonization time, working pressure, c source gas flow rate, carbonization temperature, different carbonization gas and substrate on the carbonization process was studied firstly. it was observed that the size of particles was increased with the increase of carbonization time and the rms was opposite, but the trend was reduced while the carbonization time was long enough ; the size of particles was increased with the increase of working pressure too, and choosing a proper working pressure could get a smooth surface ; the size of particles was unobviously changed while the gas flow rate was low, but it was notability increased with the increase of gas flow rate while the gas flow rate was high enough, and a smooth surface could be also obtained by choosing a proper gas flow rate ; with the increase of carbonization temperature, the size of particles was increased, the rms is decreased and a good single - crystalline carbonization layer could be obtained, but a rough surface was formed at a excessive high temperature ; the rms of

    對于碳化工藝，側重研究了碳化時間、反應室氣壓、 c源氣體的流量、碳化溫度以及不同種類的c源氣體、基片取向等因素對碳化層質量的影響，研究結果表明:隨著碳化時間的增長，碳化層的晶粒尺寸隨之變大，表面粗糙度隨之降低，但當碳化到一定時間之後，碳化反應減緩，碳化層的晶粒尺寸以及表面粗糙度的變化幅度變小;碳化層的晶粒尺寸隨反應室氣壓的升高而變大，適中的反應室氣壓可得到表面比較平整的碳化層;在c源氣體的流量相對較小時，碳化層的晶粒尺寸隨氣體流量的變化不明顯，但當氣體流量增大到一定程度時，碳化層的晶粒尺寸隨氣體流量的增大而明顯變大，同時，適中的氣體流量得到的碳化層表面粗糙度較低;碳化溫度較低時，碳化層的晶粒取向不明顯，隨著碳化溫度的升高，碳化層的晶粒尺寸明顯變大，且有微弱的單晶取向出現，但取向較差，同時，適中的碳化溫度可得到表面平整的碳化層;相比于c _ 2h _ 2 ，以ch _ 4作為c源氣體時得到的碳化層表面平整得多;比起si （ 100 ） ，選用si （ 111 ）作為基片生長的碳化層的晶粒取向一致性明顯更好。
  6. It can be noticed that both r and t specimens show initial hardening and subsequent softening at the strain amplitude higher than 0. 8 % and cyclic softening from the beginning to fracture under strain amplitude less than 0. 8 % at room temperature, and the cyclic flow stress was always lower in r specimen than in t specimen at the same strain range

    且在相同的應變幅下， t向試樣比r向試樣具有更高的循環流變應力。此外，對r向及t向試樣，低應變幅下呈現出循環軟化現象是因為晶粒旋轉導致循環軟化；而在高應變幅下發生循環硬化是由於孿晶作用的結果。
  7. The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed

    研究表明，採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料，軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數；試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著；超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比，斷裂強度和延伸率均有一定程度的增強；超細晶ly12的熱膨脹系數在550左右發生明顯的變化。
  8. Begin with the comparation of two widely used methods producing the strontium titanate, the oxalate decomposition method shows its advantage hi the microstructure and future performance. the effect of caco3 is studied, and so is the effect of the donor dopant, such as nb2o5, y2o3 and la2o3. the dopant of tio2 is also considered, which involve ti / sr ratio, sintering temperature, oxygen partial pressure, donor dopant, grain growth and future electric performance

    從對比草酸鹽分解法和固相合成法這兩種制備srtio _ 3主晶相的方法開始，在予合成料的制備過程中分析了施主nb _ 2o _ 5 、 y _ 2o _ 3 、 la _ 2o _ 3以及caco _ 3所產生的影響；在tio _ 2摻雜的問題上，綜合考慮了ti / sr比、燒結溫度、氧分壓、施主摻雜、晶粒的微觀生長與成瓷后的元件宏觀電性能等之間的相互關系。
  9. It is investigated in the paper the correlation between the microstructure and the mechanical properties, that is, the effect of the content of free carbon, free silicon, pore and granule size on the bending strength of the material. under 1800, we obtain material with a density of 3. 12 g / cm3, bending strength of 522mpa. it is considered that the increase of the bending strength of the material obtained upon the traditional rbsc material by 50 % is mainly owing to a higher density and a lower porosity than the rbsc material

    研究了高溫燒結材料中游離si含量，晶粒尺寸以及游離c和氣孔對材料強度的影響，對比了所得材料與傳統rbsc材料的顯微結構和力學性能的差別，在高溫燒結下制備了密度為3 . 12g / cm ~ 3 ，強度為525mpa的材料，比傳統rbsc材料提高了50 ，材料中更低的氣孔率和更高的密度是強度提高的主要原因。
  10. The effects of the fabrication conditions on the crystal structure, grain size, micromorphology and electrochemical performance of these materials have been studied in depth. the reaction mechanism of the low - heating solid - state reaction method has also been investigated. in addition, a novel electrochemical method ( rpg method ) based on the concept of " ratio of potentio - galvano - charge capacity " has been for the first time developed to determine the diffusion coefficient of lithium - ion within insertion - host materials on the basis of the spherical diffusion model

    本論文較系統地考察了低熱固相反應法合成鋰離子電池正極材料的可行性問題，研究了工藝條件對材料的晶體結構、晶粒尺寸、微觀形貌及電化學性能等的影響，探討了低熱固相反應的機理，並通過引進「恆壓-恆流充電容量比」的概念，給出了一種測定鋰離子嵌入脫出固相擴散系數的新方法。
  11. Presents the microstructure evolution in aluminum a nd copper after deformation by cold rolling in the strain range of 10 to 50 % red uction using tem and points out three types of dislocation structures are typica l and two of them are common for both materials and these two common types are f ound in non - cube grains and can be distinguished by crystallographic orientatio n of dislocation boundaries in the grains and the third type of structure is obs erved in cube grains, and concludes that grain orientation is important in deter mining the structure type but some other metallurgical parameters also have a ro le to play

    採用tem對冷軋多晶銅與多晶鋁的形變顯微組織演變進行了對比研究.結果發現：多晶銅及多晶鋁形變顯微組織中均含有三類典型的位錯結構類型，其中的兩種結構特徵在兩種材料中是相似的，這兩種類型結構存在於非立方取向晶粒，可通過晶粒中位錯邊界的晶體學取向加以區別，另一類型結構存在於立方取向晶粒；晶粒的晶體學取向決定了其形變顯微組織類型，但其它冶金學因素對顯微組織也有影響
  12. 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、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良，因而sps燒結樣品的臨界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，自場下的臨界電流密度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燒結樣品的臨界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，臨界電流密度值仍大於104a / cm2 。
  13. Using continuous compacting progress dy2o3 / zro2 materials can be sintered at low temperature. 98. 8 % of theory density was obtained for ultrafine dy2o3 / zro2 ceramic power sintering at 1200, which is 400 lower than the sintering temperature of the common ceramic power. it studied the influence of sintering temperature on the crystalline grain of power by sem

    採用二次成型常壓燒結法對氧化鋯/氧化鏑的納米粉體進行燒結，在1200左右燒結得到燒結密度為理論密度的98 . 8的陶瓷體，其燒結溫度比常規陶瓷粉末的燒結溫度低四百度左右，通過掃描電鏡研究了燒結溫度對燒結體晶粒大小的影響。
  14. Through strength tests and xrd tests for cemented stone, the paper presents action mechanism of the nanometer materials in the cement hydration and hardening process : pozzolanic effect, filling effect, acceleration action for the cement hydration, and improving action for microstructure. from the four aspects, the modified mechanism of the nanometer silica fume and ordinary silica fume in cement paste are compared. the analysis results show that the particular properties of the nanometer silica fume include particle fineness, crystal structure and surface hydroxy, etc. a serial of laboratory tests are performed to study physical and mechanic properties of the clay with the addition of the nanometer silica fume

    結合水泥石強度試驗和xrd試驗，從火山灰效應、填充效應、水泥水化促進作用和微結構改善作用等方面探討了三種納米礦粉在水泥水化硬化過程中的作用機理；從這四個方面出發，對比分析了納米硅粉和普通硅粉作用機理的異同點，分析表明，納米硅粉的優異特性主要表現為顆粒細度、晶體結構、表面羥基等特性。
  15. Abstract : the crystal structures obtained by static solidification and vibration solidification were compared. it was showed that, in the case of vibration solidification, the orientation growth of the columnar crystal was not obvious, the equiaxial crystal appeared more early. the grains of both types of crystals were quite fine, hardness in the full section was relatively high, and the hardness distribution was uniform. in the former case, the solute segregation in dendritical austenite more severe, and there were lumps of distortion inclusion

    文摘:對球鐵金屬型靜凝固與振動凝固的結晶組織對比表明：後者柱狀晶方向性生長較弱，等軸晶出現較早，且兩者的晶粒均較細，全斷面硬度較高且分佈均勻；前者枝晶奧氏體內溶質偏析大，有畸變夾雜團塊。
  16. The contrast experiment of chemistry reducing process and hydrothermal treatment were studied. the results showed that the crystallinity of copper powders prepared by hydrothermal method clearly increased, and the grain size distribution became narrow comparing with the copper powder prepared by reducing process

    通過化學還原法與水熱法制備銅粉的初步對比試驗，證明水熱處理過的銅粉粒度分佈變窄，結晶度提高，從而具備了還原法所不能比擬的優良性能。
  17. For adapting to the need of industrialization and improving the properties of materials, the method of mechanical activation has introduced on the basis of traditional calcinations at high temperature. the stardard spinel limn204 is prepared by the mechanical activation - high temperature solid synthesis method. the thermodynamic property, the physical - chemistry performance and the producing techniques of. battery have been studied by means of thermogravimetry ( tg ), differential scanning calorimetry ( dsc ), x - ray diffraction ( xrd ), scanning electric microscopy ( sem ) as well as various electrochemical analysis methods. studies show that synthesis temperature, calcinations time, recipe of raw materials, heat treatment and particle size of products are main factors affecting the performances of limn204 cathode materials. with the increment of synthesis temperature and time, the structure and crystal of products are getting to perfect

    隨著合成溫度和時間的增加，產物的結構和晶型越趨于完善，但在1100得到的產物有燒結和晶粒增大的現象，恆溫時間超過24h后對材料的性能影響不是很大； li mn比在0 . 95 1 . 05 2的條件下都可得到標準的尖晶石limn _ 2o _ 4 ，尤其當li mn比為1 . 05 2時，所合成的材料具有較好的電化學性能；通過兩段合成法制備的產物性能要比一段合成法法制備的產物性能好，而兩段間隔合成法比兩段連續合成法處理的材料性能更佳；顆粒的粒度隨著球磨時間的延長而減小，比表面昆明理工大學碩士學位論文摘要卻增大，粒度小且分佈范圍窄的材料有利於鏗離子的擴散。
  18. In the process of making 95 alumina ceramics, selected five kinds of alumina powder and studied the influence of different alumina powder on the sintering properties and mechanic properties of 95 alumina ceramics, moreover, selected the most agreeable alumina powder according to the apparatus for granularity analysis and scanning electron microscope ( sem ). the influence of different sintering temperature on the sintering mechanic properties, the microstructure of 95 alumina ceramics were investigated by adding y2o3 and la2o3 as two kinds of rare earth additives in alumina ceramics. the results indicated that the additive of la2o3 could improve the properties of 95 alumina ceramics more effectively and could get fine grain and tabular alumina that can enhance the strength of the material

    選用了五種al2o3粉料，研究了其對95al2o3瓷燒結性能和力學性能的影響，並結合粒度分析儀sem對al2o3粉料進行優選；通過添加y2o3 、 la2o3兩種稀土添加劑，研究了不同燒成溫度對95al2o3瓷的燒結性能、力學性能及顯微結構等的影響，結果表明：添加la2o3可以有效提高95氧化鋁瓷燒結性能和力學性能，形成細晶和板狀氧化鋁瓷的顯微結構；通過對比不同氧化鋁粉料制備氧化鋁瓷燒成溫度曲線與燒結性能的關系，確定最佳的燒成溫度范圍為1570 ~ 1600 。
  19. Abstract : it was studied by us that new technologies using strong pulsed magnetic field and electric current were applied to refine metal ' s solidified structure. these technologies improved remarkably the solidified structure of ly12 aluminum alloy and made the solidified grains more equiaxed and apparently finer compared with that of the normal sample, which is of more dendrite grains. the stronger the strength of the pulsed electromagnetic field, the better the improvement effect was. the refinement mechanisms of the new technologies were analyzed theoretically. new phenomena and problems occurred in our experiments were also pointed out in this paper

    文摘:提出了用強脈沖磁場和電流細化金屬凝固組織的新工藝.與未經磁場或電流處理的凝固樣品相比，強脈沖電磁場能夠顯著地改善ly12鋁合金的凝固組織，使晶粒明顯細化、球化，電磁場的強度愈強，這種改善效果愈明顯.對該新工藝的細化機理進行了理論分析，同時，指出了實驗中的新現象和新問題
  20. In this paper ， first, the author drew some important conclusions by analyzing several technical factors and experimental conditions which would have great influence on the quality of diamond thin films during mpcvd process ， including gas proportion ， the power of microwave ， the plasma ' s location, the nucleation technique, etc. finally ， the author has successfully deposited nanocrystalline diamond thin films with 300nm crystal particles on the slick surface of silicon by using ch4 / h2 gases in the mpcvd system ， and the nanocrystalline diamond thin films was proved to have good field emission performance. all these researches will make the foundation for the field emission cathode of diamond films

    本論文中，作者分析了mpcvd方法中氣源成分比、微波功率、等離子體球的位置、成核技術等各種工藝條件對金剛石薄膜質量的影響，並總結得到了一些有意義的結論；同時，在自行研製的mpcvd沉積系統上，於4 - 7kpa 、 1000左右的熱力學條件下，採用ch4 / h2氣源氣氛在光滑的硅襯底上制備出了晶粒尺寸在300納米以下的納米晶金剛石薄膜，測試得到了較好的薄膜場致電子發射性能，為金剛石薄膜場致發射冷陰極的研究工作打下了實驗基礎。
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