相體積分數 的英文怎麼說

中文拼音 [xiāngfēnshǔ]
相體積分數 英文
phase volume fraction
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  1. High piezoelectric constant and dielectric constant piezoelectric ceramic grain which used as functional element were selected, and mixed with polymers in 60 - 70 % volume percent

    選擇具有高的壓電常和介電常的壓電陶瓷顆粒作為功能,並以60 70與聚合物共混。
  2. The particles distributed hi the matrix of grey cast iron, but some contact each other. the composite layer extend gradually into the substrate. when volume fraction of wc is 36 wt % and 27 wt %, the matrix of the composite is high chromium cast iron, consist of white carbide bars and the austenite. wc particles distributed uniformly, retaining approximately quondam granular form in the composite layer which has an evident interface area with the substrate, with good bonding strength

    對不同碳化鎢的灰鐵和低鉻鑄鐵基復合材料的微觀組織結構析表明:碳化鎢為52時,復合層內基為灰口鑄鐵組織,顆粒直接佈在灰鐵基上,部碳化鎢顆粒有互接觸的現象,基材與復合層之間沒有明顯的過渡;碳化鎢為36 、 27時,復合層內基為高鉻鑄鐵,由面塊狀的奧氏和白條狀碳化物組成,碳化鎢顆粒表面固溶於基組織中,粒形基本保持完整,佈均勻,與基構成冶金結合,基材與復合層之間存在一個明顯的平緩過渡區。
  3. It is firstly found that for alloys in metastable region, with enhancement of atomic interaction energy, volume fraction and density of " phase particulate are increased, size and nucle ' ation rate of ordered phase raised, decline pace of composition in disordered matrix around the order phase is accelerated, composition order parameter and long range order parameter of ordered phase increased, i. e. process of clustering and ordering are accelerated

    首次發現,隨著原子間互作用勢的增加,亞穩區合金中有序和顆粒密度有所增加,有序的尺寸和形核率有所提高,有序周圍的無序基濃度的降低有所加快,有序內的成序參和長程序參有所提高,即促進了原子簇聚過程和有序化程度。
  4. The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available. these results pointed out the direction to develop rams ". according to the radar - absorbing model, the optimized design of rams with thin - layer, light - weight, broadband and strong - absorbing is available by the simple genetic algorithms, which can effectively conduct the research work of rams to the detail. small but completely, the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up, the object function has been constructed which conform to the involved goals, the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage, the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness. when decoding, the variable restricting conditions of thickness are dynamically traced, so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient. similary, of thickness and absorber - volume - percentage, of light - weight multiple - layer multiple - ingredient. also, the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function

    作為遺傳演算法的具實施:根據本實驗室近來研製的吸波材料,建立了吸波材料的據庫;構造了能真實現「薄、輕、寬、強」優化目標的目標函;根據材料的實際量以及塗層厚度精度要求、吸收劑精度要求,建立了能動態擴展應碼長的自適應編碼方法;首創了通過動態跟蹤變量的約束條件來控制塗層總厚度的解碼技術,以此實現了在不弱化寬頻、高強的吸波性能目標的同時,兼顧到薄層、輕質的使用性能要求;在解碼時通過動態跟蹤厚度變量的約束條件,實現了多層單組吸波塗層對重量輕的要求;通過動態跟蹤厚度變量的約束條件和吸收劑的約束條件,實現了多層多組吸波塗層對重量輕的要求;使用權重系變化法,實現了吸波塗層的頻段吸波性能要求。
  5. According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions

    進而導出了非均結構電流變液在外電場與光場交互作用下旋光角與(入射線偏振光振動方向與外加電場方向間夾角)及參(為外加電場e 、散顆粒介電常、絕緣油介電常、位置矢量( ? )等量的函)的西北工業大學應用物理系碩士學位論文摘要理論表達式。
  6. The results show that the composites were more wear resistant than the matrix, contributing to the " volume effect " and " size effect ", the wear resistance increases with the particle content and size. the composite shows better wear resistance than high chromium cast iron material especially in low load and fine abrasive test condition. the results also indicate that the composite strengthened by ageing treatment was more wear resistant than as - cast composite

    磨損試驗結果表明,鑄造碳化鎢顆粒增強cu - ni - mn合金基復合材料具有比較高的抗磨料磨損能力,而且其耐磨性隨著鑄造碳化鎢顆粒及尺寸的增大而提高,表現出了強烈的「效應」及「尺寸效應」 ,尤其是在低載荷、細磨料磨損條件下,復合材料表現出更好的而寸磨性,即使與高鉻鑄鐵( cr28 )比也有很大程度的提高。
  7. Advanced technical ceramics - monolithic ceramics - general and textural properties - determination of phase volume fraction by evaluation of micrographs

    高技術陶瓷.整陶瓷.一般的和表面結構特性.通過顯微攝影圖評估測定相體積分數
  8. Either the boron nitride ( bn ) thin films with different cubic phase content were deposited on n - type si ( 111 ) and fused silica substrates by radio frequency ( rf ) sputtering using two - stage deposition process. the films were characterized by fourier transform infrared ( ftir ) spectroscopy. the transmittance te ( ) and reflectance re ( ) were obtained as a function of incident photo wavelengths and the thickness of films was measured by alpha - step. the absorption coefficient was calculated from te ( ) and re ( ). the optical band gap ( eg ) of the films was determined by effective medium form of formula containing eg

    本文還研究了立方含量與光學帶隙的關系,在n型si ( 111 )片和熔融石英片上沉出不同的立方氮化硼薄膜,薄膜的成由傅立葉紅外吸收譜標識;用紫外-可見光光度計測量了沉在石英片上的bn薄膜的透射光譜te ( )和反射光譜re ( ) ,薄膜的厚度用臺階儀測得。
  9. In the discrete process the mostly used method, the control volume method, is used. in the study of gas - particle flows numerical simulation, the gemchip arithmetic is often adopted. but it cannot be used directly in the investigation of clean room because of the low volume occupancy ( its volume fraction orde r is 10 - 10 below )

    採用控制法對氣粒多流的控制方程進行離散,在gemchip演算法基礎上,由於室內懸浮顆粒的量級在10 ~ ( - 10 )以下,無法直接求解,在研究中通過直接求解顆粒密度,不直接求解顆粒的對離散方程進行了求解。
  10. With the increase of volume fraction of sic particles, the flow stress of composites increases. from the compare of the experiment result and the analysis result, the constitute equation of mmcs is given. the penetration experimental equipments and technologies are also introduced

    隨著sic顆粒的的增加,復合材料流動應力應增加,並將實驗結果與理論計算結果進行了比較析,得到反映顆粒增強金屬基復合材料性能的本構方程。
  11. _ incremental form of evolution law of domain switching is developed by taking the volume fraction of domains as key intrinsic factors. the main factors that have great influence on domain switching are material parameters, domain wall motion, domain volume fraction and the interaction energy between inclusion and matrix. inclusion and its neighbors could be addressed in the description as well

    ? ?建立了以電疇翻轉時的增量為中心的,基於鐵電疇壁運動特性的剩餘應變及電位移的增量形式的演化方程,在其中包含有材料參、疇壁運動、電疇形式、電疇及基與夾雜、夾雜與夾雜等互間能量作用等影響因素。
  12. The precipitation sequence in instable region is as follows : supersaturated solid solution congruent ordering spinodal decomposition stoicheometric phase it is found for the first time that with the increase of compositions, congruent ordering is enhanced, incubation period is shortened, spinodal decomposition is decreased, and volume fraction of ordered phase is increased

    失穩區合金沉澱序列為:過飽和固溶( ? )非化學計量比有序( ? )化學計量比等成有序化也需要孕育期,首次發現隨初始濃度的增加,孕育期縮短,等成有序化速度加快,而失穩解的速度對減慢,有序相體積分數增加。
  13. Erosive resistance of grey cast iron matrix composite has been investigated, on the condition of different volume fraction of wc and erosive angles and volume fraction of. the results showed that, the erosive resistance of composite with volume fraction of 27 wt % was the best ; volume abrasion rate of composites with different erosive angles was maximum at 50 angle, but volume abrasion rate was less at 0 and 70 angle ; on condition of the same volume fraction of wc and larger size of quartz sand in slurry, volume abrasion rate increased

    結果表明:碳化鎢為27的灰鐵基復合材料的耐沖蝕磨損性能最佳;不同沖蝕角下復合材料的碳化鎢顆粒增強鐵基表面復合材料及其沖蝕磨損性能研究摘要磨損量在50 「沖蝕角處最大,在0 」和70 」沖蝕角處較小;在碳化鎢顆粒同的情況下,當漿料中的石英砂粒度大時,其磨損量增大。
  14. Effects of rhenium on and ' microstructure characteristic, partitioning behavior of the alloying elements and volume fraction of ' in high temperature single crystal ni base superalloys were investigated

    通過對標準熱處理后合金試樣掃描電鏡和透射電鏡的觀察、測量和析,研究了錸含量對熱處理合金、 '尺寸、佈、以及合金元素在兩間的配行為的影響。
  15. By using this model, the contribution of the thermal volume expansion of the matrix to the ptc transition of the composite is quantitatively estimated. the theory and experiment revealed that the conductive mechanism of abrupt resistivity increase at ptc transition region was equivalent as abrupt resistivity increase at the percolation curve close the critical volume fraction

    可以利用這個模型,對基膨脹對ptc轉變的貢獻進行了定量析,表明ptc轉變區的電阻突變與滲流曲線在臨界附近的電阻率突變在導電機制上是同的。
  16. Based on these parameters, the performs with the outer diameter 1200mm, the inner diameter 600mm and thickness 100mm were prepared. composition and microstructure homogeneity combined with fine primary silicon grain and uniform distribution of sic reinforced particles of 15 % were achieved

    並在此工藝參下,制備出了不同硅含量的鋁基復合材料環坯,其尺寸為1200 600 100mm ,沉坯的組織均勻、初晶硅細小,增強sic顆粒的佈均勻,約為15 % 。
  17. Method for statistically estimating the volume fraction of phases and constituents by systematic manual point counting with a grid

    通過系統人工格點計統計估算位和成方法
  18. 3 ) a novel martensitic transformation kinetics model for sma is proposed based on the phenomenological description of the martensitic transformation heat flow - temperature curve and on the linear relationship between the partial derivatives with respect to the temperature of martensite fraction and of gbbis free energy. numerical simulations by utilizing the proposed model are closer to experimental results than those from other models

    3 )基於對馬氏變熱流-溫度實驗曲線的唯象模擬,以及馬氏與熱力勢對溫度偏導之間的線性關系,建立了一種新的馬氏變動力學模型,並與其他模型及實驗結果進行了比較。
  19. _ the phenomenon of saturation or " lock up " when all of the grains have transformed, is described in a rattier simple form through domain volume fractions by the proposed model, in which domain switching in ferro - electrics is analogous to that of dislocation movement on crystal slip planes in metals

    ? ?依據晶塑性理論,將鐵電材料中的電疇翻轉類比于晶位錯滑移面上的滑移系,定義鐵電材料中應的電疇反轉系;採用電疇的表述電疇翻轉的變化量,得到了電疇翻轉的飽和特性的簡單描述。
  20. Remarkably, the temperature must be limited between softening point and solidification value, at which the bond can get perfect fluidity and stickiness. effects of bond content and pressure on magnet product during heating - pressing process are the same with effects during common - pressing process. fourthly, it is more than 250 hours before magnet is eroded when it is coated with lacquer by way of cathode electrophoresis

    溫度對溫壓效果影響明顯,應當選擇在粘結劑軟化點以上、固化反應前的某一點,保證粘結劑具有適當的粘度和良好的流動性;與普通壓制工藝同,溫壓工藝制備的粘結磁密度和磁性能均隨壓制壓力的增大而提高,磁性能和磁粉隨粘結劑含量變化的規律一致。
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