過共晶體 的英文怎麼說

中文拼音 [guògòngjīngtǐ]
過共晶體 英文
hyper-ectectic alloy
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 共 : 共動詞[書面語]1. （圍繞） surround2. （兩手合圍） span with the hand
  • 晶 : Ⅰ形容詞（光亮） brilliant; glittering Ⅱ名詞1. （水晶） quartz; （rock） crystal 2. （晶體） any crystalline substance
  • 體 : 體構詞成分。
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  1. 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。
  2. It is indicated that the improved model can calculate the fraction of ferrite and pearlite more accurately, and can specially reflect the effect of both undercooling during the eutectoid transformation and the amount of graphite nodules formed during the process of eutectic reaction on the fraction of pearlite

    結果表明，改進的模型可以更準確地預測球鐵中鐵素體和珠光體的數量，能夠準確地體現共析階段過冷情況和共晶球墨數對珠光體數量的影響。
  3. Explain the characteristics of piezoelectric crystals and the factors relating to the resonant frequencies of a piezoelectric crystal, and the procedure of the pulse - echo method

    說明壓電晶體的特性和與壓電晶體的共振頻率有關的因數，以及脈波回波法的過程。
  4. Inorganic anti - cracking reinforced chemical additive, called wj, generates some tittle expansive crystals in hydration process in concrete to reduce the porosity and improve the distribution of pore size. the expansive power is process in common to tumefaction that petty crystalloid aft suck water and pressure to concrete pores that aft crystal gather volume. its adding weight was 8 % - - 12 % in cement, its restrained expansive ratio was about 0. 02 % - - 0. 06 %, and relevantil brought self - stress 0. 2mpa ?. 6mpa

    無機增強抗裂材料wj摻入普通混凝土中，在水化硬化過程中生成一定量的微膨脹結晶體，降低空隙率，改善混凝土中孔結構分佈。其膨脹驅動力是凝膠尺寸的晶體鈣礬石吸水腫脹和結晶狀鈣礬石對孔隙產生膨脹壓的共同作用。當wj摻量為8一12兒在鋼筋和鄰位的限制下，使混凝土產生0
  5. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  6. The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied. it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains. the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice. however, the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene, but different with that of low molecular weigh linear polyethylene. kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight. it may be attributed to the existence of short branched chains

    研究了金屬茂催化的低分子量支化聚乙烯和線性聚乙烯的結晶及熔融行為，發現支化聚乙烯的結構與線性聚乙烯相同為正交結構，但晶格略有膨脹.支鏈的存在對熔融行為影響不大，兩種聚乙烯的熔點均隨結晶溫度的升高而非線性增加，表現出低分子量樣品的共同特徵.但支鏈的存在對結晶行為卻有很大的影響，主要是由於支鏈的存在降低了晶體的結晶速率從而影響結晶過程，使得低分子量的支化聚乙烯的結晶行為與高分子量線性聚乙烯的結晶行為相似而與低分子量的線性聚乙烯不同.動力學分析表明，低分子量的支化聚乙烯的結晶生長方式的轉變溫度比同等分子量的線性聚乙烯降低了約20
  7. By home analyzing the experiment result, we think that the covalent bond is more than the electrovalent bond in y - fe _ ( 2 ) o _ ( 3 ) crystallites. it is the dominating reason that the dependence of y - fe _ ( 2 ) o _ ( 3 ) crystallites grin size on lattice constant is differ from one of the ionic crystallites

    通過對實驗結果的進一步分析，我們認為其主要原因是在丫一fezo3中原子之間結合的共價性超過了離子性，因而導致了它們的晶格常數隨晶粒線度的變化趨勢和離子晶體正好相反。
  8. During this precess, using the technology of optimizing the widths of both common source mosfet and common gate mosfet under a fixed power, we obtained a compromised result of power consumption and noise figure

    設計過程中，在限定功耗的前提下，主要針對共源晶體管和共柵晶體管的柵寬，對電路的性能進行了優化，使得設計的lna的噪聲系數最小。
  9. The growth morphology of cu - cr eutectic are studied. during the process of eutectic growth, ( + ) growth is clinging to a phase. because cu - cr eutectic have very good coupling relation, the configuration of eutectic holds crystallography structure, and the influence of the direction of heat flow is not distinct

    2揭示了cu - cr共晶的生長形態，發現其在共晶生長過程中，共晶體（ + ）依附在相上生長； cu - cr因有較好的共格關系，其共晶形貌按照其結晶結構學特點生長，定向凝固下熱流的方向影響不顯著。
  10. Because of the effect of sip porous skeleton, the primary si and the eutectic si were separated on the surface of sip porous skeleton under slow cooling conditions, and there were no typical eutectic microstructures in the al - alloys phase of the composites. 6

    處于si相顆粒間隙的過共晶al - si合金液在緩慢冷卻凝固時，初晶si和共晶si會附著在si多孔體骨架上析出，在最終的復合材料中沒有典型的al - si共晶組織。
  11. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。
  12. The maximal power outputs of 37. 0 mw / cm2 and 30. 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained, which are about 2. 5 and 3. 0 times those of - fesi2. chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190. it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface

    發現： 1 ）疊層材料具有明顯優于均質材料的熱電性能，在490溫差下， p -型和n -型疊層材料的最大輸出功率分別達到37 . 0和30 . 0 （ mw / cm ~ 2 ） ，是同類型均質- fesi _ 2的2 . 5和3倍； 2 ）在焊接過程和190長時間退火處理過程中，焊接過渡層合金和基體半導體（特別是bi _ 2te _ 3 ）之間存在明顯的元素相互擴散，從而在過渡層中形成一些低熔點共晶體和脆性化合物，這是導致疊層材料破壞的主要原因； 3 ）焊接過渡層合金與半導體基體之間的潤濕性是影響界面層電性能的主要因素。
  13. Hyper - ectectic alloy

    過共晶體
  14. The effect of pump beam ' s walk - off and the group - velocity - mismatch in bbo crystal is discussed, the group - velocity - mismatch can be compensated by non - collinear phase - match when the angle between signal and idler beams equals to 14. 4

    當下轉換光與抽運光夾角達到13 . 4度時，非共線相位匹配基本可以消除晶體中群速失配對下轉換過程的影響。
  15. With excellent mechanical properties, a majority of metallocene polyethylene was used as films. however it is difficult to manufacture metallocene polyethylene in common blown - film machines. by blending and filling, this paper investigates different systems " rheological and crystallization properties, also films " mechanical strengths are researched

    茂金屬催化聚乙烯具有優異的力學性能，大部分應用在薄膜領域，但是在普通的吹膜設備上單獨加工有一定的困難，本論文通過共混、填充的方法，研究了不同體系的流變性能和結晶性能，以及吹塑薄膜的力學強度。
  16. We analyze the generation of external cavity frequency - doubling with knbo3 crystal theoretically. in order to get the second - order nonlinear conversion from 858nm to 429nm with knbo3, we use non - critical type - i phase - matching to avoid the walk - off effect the corresponding optimum focusing condition is as followings : double refraction parameter b = 0, focus parameter = 2. 84, optimum phase mismatch parameter = 0. 574. based on the theoretical analysis and numerical calculations, we obtain the ideal nonlinear conversion coefficient about 1. 45 % / w with crystal length of 7mm and 2. 07 % / w with crystal length of 10mm at the phase - matching temperature around 23. 50c

    根據對其倍頻原理及性能的分析討論，在用該晶體完成波長從858nm到429nm的二階非線性轉換時，採用非臨界相位匹配條件（此時無離散效應，對應的雙折射參數b = 0 ，共焦長度為= 2 . 84 ，最佳相位失配因子為= 0 . 574 ） ，在相位匹配溫度約為23 . 5時，理論上通過計算得到理想情況下非線性轉換系數約為1 . 45 / w （長度為7mm ） ， 2 . 07 / w （長度為10mm ） 。
  17. In order to get single - photon state and reconstruct its wigner function, the two aspects, spdc of pulse pumped nonlinear phase match type i bbo crystal and reconstruction of wigner function of quantum state, are studied in this thesis. 1

    本文是單光子態制備及其wigner函數重構課題中的部分內容，主要包括兩個方面內容，即脈沖抽運的類非共線相位匹配bbo晶體的自發參量下轉換過程和利用量子層析攝影術重構光量子態的wigner函數。
  18. Influenced by the alternating current field, except that a little of eutectic iron - phase still is the acicular structure, the most of eutectic iron - phase of the al - 20si - 5fe - mn alloy is refined into tiny particles which is segregated

    Al - 20si - 5fe - xti合金通過交流電場作用，共晶組織全部呈細小的顆粒狀均勻分佈於- al基體上。
  19. Corresponding soluble salts have been chosen as raw materials and ammonia as precipitator. the optimum ph value is 8. 5 - 10 and higher concentration is helpful for crystal growth. the perovskite phase plzst can be synthesized at 750 by solid state reaction

    合適的工藝條件為：選擇以各離子的可溶性鹽為原料，以氨水為沉澱劑，通過共沉澱得到白色無定型前驅體，最佳的ph值范圍為8 . 5 10 ，溶液的濃度越高越有利於固相反應合成中晶體的形成，適當的沉澱后處理過程如水洗、干磨能促進plzst晶體的生成。
  20. This shows, on the course of growth, the directional ability of the primary ( cr ) phase is not manifest, and must influence the morphology and distribution of the a phase and eutectic, gravely breach the continuity of the base

    由此可見，初生相在其長大過程中，定向效果不明顯，這將影響相和共晶體的形貌和分佈，不利於獲得具有純cr纖維強化相。
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