晶粒粒度控制 的英文怎麼說

中文拼音 [jīnglìlìdùkòngzhì]
晶粒粒度控制 英文
grain size control
  • 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）
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 控 : 動詞1 （告發;控告） accuse; charge 2 （控制） control; dominate 3 （使容器口兒朝下 讓裏面的液體慢...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
  1. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  2. 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。
  3. The main intention of this study is to investigate 95 alumina substrates by tape casting process, which will be used as ceramic packages in kinds of integrate circuit ( ic ). high bending strength and fine surface were required as the basic properties of ceramic substrates. in this thesis, based on the research of the tape casting used in ceramic substrates at home and abroad

    本文綜述了國內外研究現狀，著重研究細晶氧化鋁的制備和流延工藝參數的控制，以及細晶95al2o3瓷的制備，研究al2o3原料（包括種類和粒度） 、摻雜改性劑、流延漿料、有機配方等對95al2o3瓷基片性能的影響，獲得最佳流延配方，流延基片綜合性能良好，成功制備了細晶氧化鋁瓷基板。
  4. Automatic temperature coutrol can precisely control the crystalization temperature to ensure grain structure, mechanically controlled casting die speed is used to ensure the density of material

    自動溫控系統對結晶溫度實施準確控制以確保晶粒結構（金相）符合要求。機械控制恆定的鑄造結晶速度以保證材質的緻密性。
  5. The results show that under the same lapping conditions the si3 n4 ball has the lowest material removal rate and the best roundness and roughness, followed by zro2, al2o3, and sic ball

    結果表明：在相同的研磨條件下，具有長柱狀晶粒的氮化硅陶瓷球加工速率最低，但圓度和表面粗糙度最容易控制；氧化鋯和氧化鋁陶瓷球表面質量次之，碳化硅陶瓷球加工速率最高，圓度和表面粗糙度最難控制。
  6. In this article the chelating precipitation method and the converting precipitation method were chosed to synthesis zno nanoparticles on the basis of the theory of synthesis of nanoparticles by precipitation. uniform and dispersed zno nanoparticles were prepared by the two methods because zn2 + of conformation crystal was flee slowly and the supersaturation was well controlled. the problem which zno nanoparticles are wide size and agglomerative was solved

    本文根據均相沉澱法合成納米粒子的原理，採用絡合沉澱法和沉澱轉化法合成納米氧化鋅。這兩種方法利用溶液中的構晶陽離子zn ~ （ 2 + ） ，緩慢地釋放出來，有效地控制了溶液中的過飽和度，可以得到粒徑均勻、分散的納米氧化鋅，解決現有制備工藝中納米氧化鋅粒徑分佈寬、易團聚的問題。
  7. The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate

    採用pld技術進行了碳氮化合物薄膜沉積，得到了含氮量為21at的cn薄膜；研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響，給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因；引入脈沖輝光放電等離子體增強pld的氣相反應，給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑；應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ，得到了含n量為56at的晶態cn薄膜；探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系，證明了- c _ 3n _ 4薄膜沉積為滿足動力學平衡條件的各種反應過程的競爭結果；採用光學發射譜技術對cn薄膜生長過程進行了實時診斷，得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律，給出了cn薄膜沉積的主要反應前驅物，揭示了cn薄膜特性和等離子體內反應過程之間的聯系；採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性，揭示了si原子對薄膜生長過程的影響，給出了si基表面碳氮薄膜的生長模式；在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉積，證明了通過控制材料表面動力學條件可以改變碳氮薄膜結構特性，並可顯著提高晶態碳氮材料的生長速率。
  8. The parameters of impregnation are as follows : ph is about 3, the range of temperature is from 20 to 45, and the time is about 2 to 6 hours. after the necessary treatments, zirconia cloths had the optimal strength when the diameters of zirconia fibers were controlled in 4um to 7um, and the sizes of zirconia grains were in 50nm to 100nm. the affec - ting factors were discussed and the liner regression analysis of the cloths was made, from w hich they show that the diameters and grain sizes have the significant influences on zirconia cloths. the obtained zirconia cloths have been accepted for use in nickel - hydrogen batteries by practical use

    研究結果表明：粘膠類纖維布最適合制備氧化鋯纖維布的前軀體；鋯液濃度以飽和溶液為宜；浸漬工藝參數為ph值3左右，溫度20 45 ，時間2 6小時；多餘鋯鹽的去除、浸鋯液后纖維布的整平處理及平燒施應力燒成有利於氧化鋯纖維布的柔軟及平整; 200 600燒成溫度段應緩慢燒成，控制氧化鋯纖維直徑在4 7 m ，氧化鋯晶粒尺寸50 100nm時氧化鋯纖維布的強度最好。
  9. The affiliation controls the depth by thesuction size and intricate carvings tube thick degree of fineness, comparatively does not have the irritating quality, after theoperation is not easy to have puzzle the wound attendance, also is noteasy to have the pigment to precipitate or the skin blushes thepuzzle, also when operation cannot have the crystal pellet to deflect, the residual question, the entire process is very clean, safe

    藉由吸力大小與微雕管粗細度來控制深度， ，較不具刺激性，操作后不易有傷口照顧之困擾，也不易有色素沉澱或皮膚發紅之困擾，且操作時不會有晶體顆粒飛散殘留的問題，整個過程很乾凈，安全。
  10. The result indicated that the crystlal type of film convert to anatase after 500 c treatment for 1 hour, the particles size on the film surface and film ' s thickness can be adjust in some extent by properly control the technics conditions

    結果表明，在500熱處理后， tio _ 2晶型從無定性態轉變為銳鈦礦結構，且通過適當控制工藝條件，可在一定范圍內調控tio _ 2薄膜表面粒徑大小和薄膜厚度。
  11. 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，觀察到與傳統細晶超塑性特徵區間相反的行為：較高應變速率下，動態再結晶使晶粒細化，促進了晶界滑移，亞晶界控制的晶內位錯蠕變是晶界滑移的主要協調機制。
  12. 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。
  13. Crystal structure and ceramoc microstructure of powder samples are examined by xrd and tem. the mean grain size of the materials ranges from 10nm to 50nm by controlling the reaction concentration and annealing temperature

    採用化學沉澱法成功地制備了納米晶zno粉體，根據不同反應物濃度和熱處理溫度的選取，晶粒尺寸控制在10 ? 50nm范圍內。
  14. By using x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ), differential scanning calorimeter ( dsc ) and optical microscopy, mechanical activation is investigated. and during the study, two new innovative processes or thoughts, " dual activation reactive milling " and " in situ synthesis in salt bath activated by ma " has been presented for the synthesis of nanometer - sized powder. the phase transformation and oxidation control of cu - cr system during ma is also investigated

    在採用x射線衍射分析（ xrd ） 、掃描及透射電子顯微鏡（ sem tem ） 、能譜分析（ eds ） 、熱分析（ dsc ） 、激光粒度測試等試驗手段對ma過程機械激活作用的研究中，發現並提出了「雙重激活反應研磨」和「機械激活鹽浴合成」兩種創新工藝思路；同時，對cu - cr難互溶體系在機械合金化過程中飽和固溶體、氧化物非晶的形成以及氧化現象的控制進行了探討分析。
  15. The synthesis was realized by the reduction of agno3 or haucl4 with na3c6h5o7 respectively in the presence of sdsn as a capping agent. this non - template and non - seed method has its unique advantage that control the particle ' s shape and size by changing the reductant concentration

    它最鮮明的特點在於不需要任何模板和種子誘導，僅通過控制還原劑的濃度就可以實現對納米粒子的尺寸和形狀控制，而包裹劑的主要作用是防止粒子聚集和得到更好晶型結構。
  16. 6. the melting of the grain boundary is the reason of the semi - solid grain globalization, and its control factors were the atomic diffusion velocity and the liquid - solid interface curvature

    6 、半固態晶粒球狀化的基本原因是晶界熔化，其控制因素是因液界面處原子擴散遷移的速度和界面曲率。
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