面膨脹系數 的英文怎麼說

中文拼音 [miànpéngzhàngxìshǔ]
面膨脹系數 英文
superficial expansivity
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 膨 : 動詞（物體的長度或體積增加） expand; swell
  • 脹 : 動詞1. （膨脹） expand; dilate; inflate 2. （脹大） swell; distend; bloat
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 膨脹 : expand; swell; dilate; inflate; puff; bulge; inflation; expansion; dilatation; buckling; swelling...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. It is found that the ca ( no3 ) 2 - po ( oh ) x ( oet ) 3 - x - c2h5oh system with cf3cooh added gives out much gas during heat - treatment which will result in films with many c

    Fha薄膜較純ha薄膜有較好的與基板的結合強度，這得益於兩方面：一方面fha熱膨脹系數較ha小，與
  2. The heat expansion coefficient of casting nylon materials is about 10 times larger than steel, so the internal dia shrinks caused by the expansion. it will influence the connection gap of the abrasive surface

    鑄型尼材料的熱膨脹系數約比鋼材大10倍左右，所以軸套在運行時由於摩擦熱所造成的膨脹變形使內徑縮小，影響摩擦面的配合間隙。
  3. In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat

    本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧，討論紅外系統中雜散輻射的抑制，並詳盡分析經緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題，認真討論和分析影響主鏡的面形精度的各種可能因素。並指出：在靶場環境下影響經緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化，這種情況可通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。
  4. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  5. Thermal expansion and its evolution of c / sic composites have been studied by such analytical methods as thermal dilatometer and sem, based on thermal stress and micro structure evolution in c / sic composites. the influence of perform structures, heat treatment and interphase thickness on thermal expansion of c / sic composites has been analyzed

    本文採用熱膨脹儀和掃描電鏡（ sem ）等分析手段，從材料界面熱應力的變化和微結構改變的角度，研究了c sic復合材料的熱膨脹系數及其隨溫度的演變規律，分析了其演變機理，以及編織結構、高溫處理工藝和界面層厚度等對復合材料熱膨脹行為的影響。
  6. The influence of the raw materials on the expansion coefficient of the glazed brick

    原料對釉面磚膨脹系數的影響
  7. Standard test method for linear shrinkage and coefficient of thermal expansion of chemical - resistant mortars, grouts, monolithic surfacings, and polymer concretes

    耐化學腐蝕的灰漿薄漿整體面層和聚合物混凝土的熱膨脹系數和線收縮性的標準試驗方法
  8. Ltd. a coupled vibration method on suspended free poles is employed to determine the initial young ' s modulus at elevated temperatures, also the thermal expansion coefficients of fire - resistant steel

    通過高溫下的恆溫加載拉伸試驗，得到不同溫度下耐火鋼的屈服強度、極限強度、延伸率、面縮率和應力應變關系，並測定高溫下耐火鋼的熱膨脹系數，採用懸絲耦合共振法測定高溫下耐火鋼的初始彈性模量。
  9. The ha coating is easily broken off from the substrate because of the interface corrosion, caused by the body fluid, and the cycle load. the preparation of the bg / ha bioactive graded coating on the surface of ti6a14v is an effective way to alleviate the heat stress

    在鈦合金表面制備生物玻璃（ bg ） ha梯度塗層，來緩和因熱膨脹系數不匹配而造成的塗層內部過高的熱應力是解決以上問題的有效途徑之一。
  10. 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的界面連接是ofc與93w中w晶粒的連接以及ofc與93w中ni - fe粘接劑的連接共同作用的結果； ofc與tc _ 4連接界面的形成是由於ofc與tc _ 4之間發生反應擴散，並由此在二者接頭處生成了cu - ti金屬間化合物的中間相； tc _ 4 - al的連接與al - mb _ 2的連接則分別是其基體元素ti 、 al之間和al 、 mg之間元素互擴散的結果，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。
  11. Three different aspects of anisotropic deformation including lateral strain, relative proportional relation of lateral strain and strain in load direction, and train increment induced by unit stress increment in load direction will be delicately analyzed. the stress strain relationship in different principal stress load direction can be reflected in the anisotropy of tangent elastic ratio or strain increment in load direction induced by unit stress increment in load direction

    側向變形可以從側向應變、側向應變與加荷向應變之間的相對比例關系或側膨脹系數以及加荷向單位應力增量所引起的側向應變增量三個不同方面深入細致地分析研究；不同主應力加荷向的應力應變關系各向異性可以反映在切線彈模以及加荷向單位應力增量引起的加荷向應變增量的差異中。
  12. In this paper, finite element software ansys is used to simulate the thermal conductivity and pressureless infiltration technique is used to produce aluminum infiltrated silicon carbide composite with high volume fraction of sic. the influence of interfacial thickness and temperature on thermal conductivity and cte have been investigated and analysed

    本文採用有限元軟體ansys對鋁滲碳化硅復合材料的有效熱導率進行了數值模擬，用無壓浸滲法制備了高體積分數的鋁滲碳化硅復合材料，研究了界面層厚度和溫度等對鋁滲碳化硅復合材料的熱導率和熱膨脹系數的影響，並進行了分析。
  13. However the study of metal - oxide hetero - interface is relatively less because the properties of metals and oxides usually differ extremely from each other. contrary to metals, the oxides are usually very brittle, elastically stiffer, insulating and exhibit less thermal expansion and their crystal lattice constants are different from metals. moreover, the preparation of specimen of metal - oxide interface is very difficult, the observation of searching a suitable interface under the electron microscope is also a tedious work

    然而，對金屬-氧化物界面結構的研究卻相對少一些，這主要是由於金屬與氧化物之間的性質相差非常大，與金屬相反，氧化物通常很脆、絕熱、熱膨脹系數小，晶格常數也不同於金屬，有的甚至相差很大，而且，制備金屬-氧化物界面比較困難，在電子顯微鏡下全面地觀察一個合適的界面也是一項令人乏味的工作。
  14. It is shown that cte of the composites decrease gradually with pyc interphase thickness increasing when it is in a certain thickness range ( about 70 ~ 220nm )

    結果表明，當界面層厚度處於一定范圍（約70 220nm ）內時， c sic復合材料的熱膨脹系數隨熱解碳厚度的增加而逐漸降低。
  15. Adding sic can decreases sintering temperature of al2o3 efficaciously, but also can make the al2o3 crystal growth as flake, strengthen the coalescent of the al2o3 crystals, and the residual sic during sintering can strengthen the al2o3 ceramics. because the reaction between sic and al2o3 begins from the surface of samples, there is a compact protecting field on the surface of the samples to restrain o2 enter into the samples, and leave more pore in them to decrease the thermal expansion coefficient and increase their the al2o3 ceramics " thermal shock resistanc e times

    引入sic的樣品在燒結過程中，首先在樣品的表面產生sic與o _ 2及al _ 2o _ 3的反應，形成一層緻密的保護層，阻礙o _ 2進入材料內部，在材料的內部留下較大的氣孔率，可以降低其熱膨脹系數，並使材料在受熱過程中有一定的空間進行結構調整，能夠顯著的提高al _ 2o _ 3陶瓷材料的抗熱沖擊次數。
  16. When the substrate is fr4, the surface shear stress and normal stress difference is at a low level and near zero during curing process and build up during cooling down because of the mismatch of ctes of silicon and substrate

    對于fr4基板，在固化過程中，晶元表面的剪切應力和正應力的值很小，其數值在原點上下很窄的范圍內波動。在降溫過程中，熱膨脹系數的失配隨著溫度的降低而越來越顯著，引起應力的積聚。
  17. Which has high strength, good ductility, impact bearing, erode - bearing, besides, its linear expanding coefficient is almost equivalent to concrete, and it has excellent performance - price ratio etc. this paper is related to 8 rc - poles wrapped by gfrp ( sgfw430 ) and rc - poles are compressed axially, in order to analyze the influence of different stick layer over the pole ' s work performance and the influence between three type axial compress ratio ( 0, 0. 8, 1. 1 ) with one layer gfrp with the contrast poles about limit load - bearing capability, failure state, ductility, section stiffness, restrict losing owing to stress - difference

    其具有強度高，延性好；抗沖擊、耐腐蝕；線膨脹系數與混凝土接近；性能價格比高等多個特點。本文通過8根外包單向gfrp （ sgfw430 ）的rc組合柱，以及混凝土對比柱在軸心荷載作用下的試驗為基礎，具體詳細地分析柱子在粘貼不同層數的高性能玻璃纖維和在不同的軸壓比（ 0 、 0 . 8 、 1 . 1 ）下粘貼一層的高性能玻璃纖維后混凝土組合柱相對對比柱在極限承載能力、破壞形態、延性、截面剛度、應力差帶來的約束損失等方面的變化情況。
  18. The mechanism of physical damage of carbon fibers was clarified firstly. the precursor which attached on carbon fibers changes to inorganic ceramic under high temperature with large volume shrinkage which appearing at cracks with fiber traction and the cracks are mainly vertical to fiber axis. because of mismatched coefficients of thermal expansion, carbon fibers suffer multiple thermal stresses and are damaged

    首次探明了碳纖維熱應力物理損傷機制，即碳纖維表面附著的先驅體在高溫下無機化形成陶瓷體，同時伴隨著大的體積收縮，在碳纖維的牽引下，基體的體積收縮以開裂形式出現，裂紋的取向以垂直於纖維軸向為主，由於碳纖維與基體熱膨脹系數失配，致使碳纖維在降溫過程中受到復雜熱應力，引起碳纖維損傷。
  19. It is shown that heat treatment increases thermal stability and affects thermal expansion behavior of the composites by changing thermal stress and micro structure of the materials

    結果表明，高溫處理可提高材料熱膨脹的高溫穩定性，並通過改變復合材料內部結構及界面熱應力，對熱膨脹系數產生影響。
  20. In this paper i have done several worksuch as : coefficient of thermal expansion of frp sheet is larger different thanthat of the concrete. the interface of frp sheet reinforced concrete will producetemperature stress under the circumstance of temperature difference. i n order todesign the reinforced structure and evaluate safely, it is very significant toanalyse the interface temperature stress and to find the changing law of interfacetemperature stress

    本文重點分析了frp片材補強混凝土梁界面溫度應力分佈理論，解決補強方面的一些工程問題，主要完成了以下幾個方面的研究工作:首先， frp片材的熱膨脹系數與混凝土的熱膨脹系數相差較大，在環境溫差作用下， frp片材補強混凝土界面將產生界面溫度應力，正確分析界面溫度應力和界面應力變化規律，對補強結構設計和安全評價具有重要的意義。
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