晶粒流變 的英文怎麼說
中文拼音 [jīnglìliúbiàn]
晶粒流變
英文
grain flow-
Based on the principle of mechano - chemistry, the strong shock and crashing mechanical force produced by ls - 250 pulverizer can act to the surface of superfine carbon and white carbon particles during the process. the result of the experiment indicated that distortion and amorphism change occur to the surface crystal lattice of carbon particles, and the phenomena are prick up as the action time of mechano - chemical force
依據機械化學原理利用ls一250型流能粉碎機高速旋轉的動齒工作過程中產生的強烈沖擊、碰撞機械力,使其作用於超細石墨及白碳黑顆粒表面,檢測表明,石墨粒子表面晶格發生畸變及無定形化,且隨著機械力作用時間的延長而加劇。By infrared spectrum study, the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite, and the hematite is another colorating mineral in the red jadeite. the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water. the iron ion came from the effloresced and eroded rocks, and formed fe ( oh ) 3 colloid reacted with the surface water
周圍礦床的風化蝕變為表生水提供了鐵質,形成弱酸性的含fe ( oh ) _ 3膠體的水溶液,表生水流經翡翠礦石時, fe ( oh ) _ 3膠體附著在巖石的表面,經過脫水結晶和吸附,形成褐鐵礦膠體,褐鐵礦膠體沿裂隙或鬆散的礦物顆粒進入翡翠巖石中,逐漸累積沉澱,形成次生色層。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。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。The process parameters of preparing nanosized titanium dioxide powders were systematically studied by electrochemical synthesis experiments at room temperature. the rutile phase and anatase phase powders were obtained in the sizes of 9. 7nm and 9. 2nm respectively, and the complete crystal powders were formed after calcined at 400 for two hours. in the process of experiments it was observed that the low current density resulted in rutile phase powders, while the addition of little amount of ions of sulfate promoted the formation of anatase phase powders
在本實驗條件下,小的電流密度有利於金紅石相的生成,而少量硫酸根離子的引入對生成銳鈦礦相粉體有利,調整電流密度大小和引入硫酸根離子的量,可以得金紅石型和銳鈦礦型的混合混體;研究無定型粉體,銳鈦礦相粉體以及金紅石型粉體隨溫度的粒徑變化情況時發現,粉體在400以前晶粒長大相對緩慢, 400以後晶粒粗化現象嚴重。Spiral gate is a powder, grain materials, particulate matter and the small volume of material throughput of the main control equipment widely used in the metallurgy, mining, building materials, food, chemical and other industries control the rapid flow changes or cut off
螺旋閘門是一種粉料、晶粒料、顆粒料及小塊物料的流量或輸送量的主要控制設備,廣泛使用在冶金、礦山、建材、糧食、化工等行業控制流量變化或迅速切斷。The results are as follows : ( 1 ) bst thin film prepared by pulsed laser deposition is well crystallized. the average grain size is 100nm and the surface roughness is about 10nm. when the electric field intensity is 3v /, the tunability of the thin film is about 30 % and the loss tangent is about 20 % under room temperature
研究結果如下: ( 1 )採用脈沖激光沉積法制備的bst薄膜結晶良好,晶粒尺寸在100左右;表面粗糙度約為10 ;室溫下,當直流電場為3v /時介電系數變化率約為30 % ,介質損耗約為20 % 。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。The crystal pvc was crashed by jet - mill to prepare nanocrystal pvc. the crash, degradation and the change of morphology and crystalline structure changes of pvc was studied by ftir, sem, dsc, tem
用氣流磨對結晶pvc進行粉碎,制備了納米晶pvc ,研究了在高速氣流作用下pvc的破碎降解、顆粒形態和微晶結構變化。The crystal pvc is crashed by jet - mill to prepare nanocrystal pvc. the crash, degradation and the change of morphology and crystalline structure changes of pvc is studied by ftir, sem, dsc, tem. the self - plasticization of nanocrystal pvc is studied, too
用氣流磨對結晶pvc進行粉碎,制備了納米晶pvc ,研究了在高速氣流作用下pvc的破碎降解、顆粒形態和微晶結構變化,研究了納米晶pvc對pvc的增塑作用。Xrd measurements showed that tio2 in the composites was anatase nano - crystallite with 5 - 10 nm size. sem images showed that some of the tio2 nano - crystallites coated on the surface of the mmt and some of them plugged into the gap between flakes of mmt. combining xrd result with sem images, it was clearly that the mmt and tio2 nanocrystallites formed a netlike nanocomposite structure
用改性的溶膠凝膠法制備了一種mmt tio _ 2復合電流變顆粒, xrd , sem分析證實tio _ 2是以納米晶的形式沉積于mmt的片層結構之間及顆粒表面,形成了一種網狀包覆的納米復合結構。The flux of n2o greatly affected the film ' s microstructure. as the n2o flux was increased, the content of anatase decreased and rutile increased gradually. the size of rutile became smaller with increase of the flux of n2o
摻雜劑n _ 2o的流量對薄膜的結構有很大影響,隨著流量的增大,銳鈦礦相tio _ 2逐漸向金紅石相轉變,金紅石晶體的顆粒尺寸也不斷減小。The resulting semi - solid mixture then flows homogeneously, figure 1, behaving as a thixotropic fluid with viscosity depending on fraction solid, morphology, shear rate and time
這樣最終形成的半固態混合物會均勻地流動(圖表1 ) ,並依據固體粒度、晶形、剪切速率及時間而形成粘性觸變液體。To investigate the effect of different laminar cooling patterns on the microstructure and mechanical properties of plates in rolling process, the changes in temperature and microstructure of plate in such cooling process were calculated simulatively by coupling finite difference method with microstructural evolution models, thus predicting the ferrite grain size and phase composition under different cooling patterns
摘要為了研究層流冷卻方式對中厚板組織和性能的影響,用耦合有限差分和微觀組織演變模型模擬計算了中厚板層流冷卻過程中的溫度和組織變化,預測出了不同冷卻方式下的鐵素體晶粒尺寸和相組成。Some successes have been achieved through microfabrication techniques, but the pursuit of a microscopically ordered pbg in the visible range was still a challenging endeavor. colloidal self - assembly has been utilized as a process to form 3d periodic structures because of its simplicity
電磁流變技術的發展為廉價、簡便地形成三維有序結構以制備光子晶體提供了一條新的途徑,而這種方法的關鍵在於制備粒徑適當的電磁響應性微粒。The results showed that the accuracy and the repeatability for online concentration acquisition could not be assured with this approach even though the obtained electroconductivity curves were essentially consistent with those of hlozny ' s, because the electrode constant will be changed in the crystallization operation
但由於懸浮晶粒及其在強流體場作用下對測試電極產生的沖刷破壞作用,致使電極常數改變,影響測定結果的準確性和重現性,難于實現濃度的在線測定。分享友人