si-mn 中文意思是什麼

si-mn 解釋
硅錳
  • si : n. 【音樂】長音階的第七音。Si ＝【化學】 silicon.
  • mn : MN ＝ magnetic north 磁北。Mn ＝ manganese 【化學】錳。
  1. The intense eluviation and weathering of soil with groundwater and run - off result in the enhancing of capacity of transference of some elements, such as si, al, fe, mn. the chemical reactions of the colloid particles in the soil water make those crannies or holes filled by some epigenetic clay minerals and quartz. then a great deal of white reticulate clay comes into being in the quaternary laterite of the dongting basin

    地下水和地表水強烈的淋溶作用使土壤中硅鋁鐵錳等元素的遷移能力增強，土壤膠體粒子之間的化學反應，使得這些孔隙空間在後期逐漸被次生黏土礦物和石英所充填，最終，在洞庭盆地第四系紅土地層中形成大量的蠕蟲狀和根狀白色網紋。
  2. Effects of elevated content of mn and fein hypereutectic al - si alloy on tensile strength of an alloy

    高錳鐵含量過共晶鋁硅合金的力學性能
  3. The 3d electrons increased with the content of mn doping increasing, and the electrical property increased accordingly as the electron transport path improved. it is confirmed that all the orthorhombic perovskite phase which is formed initially at the heat treatment temperature of about 600c and thoroughly above 850c are observed in the lcmto thin film deposited on si ( 100 ) substrate by rf magneto - controlled sputtering

    確認了採用射頻磁控濺射法于si （ 100 ）基板上生長的薄膜至多在600熱處理已開始形成晶相，形成的晶相全部是正交晶系鈣欽礦相，提高熱處理溫度，薄膜中晶相含量相對增大，高於850后晶相基本形成完畢。
  4. The time taken to reach maximum hardness decreased and the corresponding maximum hardness decreased with increasing aging temperature. the better properties of al - mg - si - mn - cr alloy were obtained after 8h at 175 ' c. the al - mg - si - mn - cr alloy resembles al - mg - si alloy in the way of the age hardening mechanism

    在同一溫度下，隨著時效時間的延長，合金硬度逐漸上升，在達到時效硬度峰值后又逐漸降低，隨著時效溫度的升高，中南大學碩士學位論文川mg st mn cr合金組織與性能的研究合金達到時效硬度峰值的時間縮短，而相應的時效硬度峰值在減小。
  5. But when heavyly loaded, the former is far better than the latter. the wear resistance of za27 alloyed with mn is no obviously better than that of common za27 alloy. under the sliding friction conditions, the wear resistance at high temperature of za27 is improved by alloyed si and reaches the highest level when the content of si is 1 - 3wt. %

    裂紋主要始於脆性相si相和mn相，裂紋沿晶界擴展；在滑動摩擦條件下（常溫） ，含si的za27合金在載重較小時，耐磨性與普通za合金相比沒有明顯提高，但在載荷較大的情況下，其耐磨性遠高於普通za27合金材料；加mn的za27合金與常規za27合金相比，耐磨性沒有明顯提高；在滑動摩擦條件下， si的加入提高了za27合金的高溫摩擦性能。
  6. Characteristics of martensitic transformation in fe - mn - si alloy during thermal cycles

    合金熱循環時馬氏體相變特徵
  7. Alloys are melted in intermediate frequency furnace and graphite crucible respectively. si and mn are alloyed to improve properties

    試驗中，合金分別在中頻感應爐和石墨坩堝電阻爐中熔煉。
  8. In actual engineering applications, its wear resistance reduces due to the high temperature resulted from the continuous and heavy load service, which cannot fit the demand of engineering applications. based on the recent research throughout the world, in order to improve mechanical properties and wear resistance at high temperature of za27 alloy, si and mn are added to modify its microstructure. its microstructure and mechanical properties are tested and the sliding friction at ambient temperature and sliding friction at high temperature of znalsi and znaimn are studied

    本文研究了za系合金中應用最廣泛的za27合金，針對企業在工業應用過程中發現za27在中低速重載連續工作時，因溫升造成耐磨性下降，難以滿足工況要求的實際情況，為進一步提高其力學性能和高溫耐磨性，結合國內外研究現狀，在za27合金基礎上，添加si 、 mn合金元素調整合金的組織，通過顯微組織分析和常溫機械性能測試，以探索znalsi及znalmn合金常溫及高溫滑動摩擦條件下的摩擦特性。
  9. That the alloying element mn and ti substitutes the atom of fe in the rich iron - phase ( al, si, fe ) and resumes the part of the element si in primary phase refines the second phase. at the same time, the volume percentage of second phase is increased. at the course of solidification, the alternating current field changes obviously the microstructure morphology of the al - 20si - 5fe - x alloy and the number of particle eutectic structure is increased

    合金元素mn 、 ti通過占據富鐵相（ al ， si ， fe ）中鐵原子的晶格位置，同時消耗部分初生相中的si元素，形成四元富鐵相（ al ， si ， fe ， mn ） ，細化了合金中的第二相，同時提高第二相體積百分數。
  10. Method of quantitative electron probe microanalysis on low contents of si and mn in steels

    鋼中低含量si mn的電子探針定量分析方法
  11. Ethanol synthesis ; rh - mn catalyst ; active site ; si - oh

    乙醇合成銠錳催化劑活性位硅羥基
  12. Catalyst for ethanol synthesis. the results show that the reactive metals rh and mn are fixed on the catalyst surface by the interaction with si - oh, which can enhance the stability of highly dispersed metals. rh and mn interact with each other to form the acitve site with high ethanol synthesis activity. the surface si - oh was found to be of significance on the preparation of catalyst with high catalytic activity

    的性質，結果表明，活性金屬銠及錳經浸漬法擔載于載體上后即與表面羥基作用使金屬固定在氧化硅的表面上，保證了高度分散活性金屬的穩定性高度分散中的銠錳相互結合，構成了乙醇合成中的高活性位研究發現表面硅羥基在催化劑制備過程中起著重要作用。
  13. The transformation of the platelike ? - alfesi to spherical a - alfesi during homogenization is markedly accelerated by the addition of minor mn and cr in al - mg - si alloy, as well as the recrystalization of alloys during hot extrusion has been inhibited, and ? " strengthening phase improved to precipitate in the process of aging

    合金鑄錠均勻化處理過程中，形成含mn 、 cr的第二相al （ mnfe ） si和al （ mncrfe ） si等，這些顆粒加速長棒狀的b - alfesi相向尺度較小的粒狀的- alfesi相轉化，減少了粗大結晶相對合金性能的不利影響。
  14. Under the tensile stress, the fracture mode of za27 alloyed with si or mn is a mix type fracture - the plastic fracture and the brittle fracture are coexistence. cracks are mainly stemmed from brittle phases of si and mn and develop along the grain boundary

    適宜的加錳量為0 . 4 - 0 . 8 ；在拉伸應力作用下加入si或mn后的za27 ，合金的斷裂均為混合型斷裂，既有塑性斷裂，也有脆性斷裂。
  15. Standard grade for turning, drilling, milling, reaming, countersinking of hardened steels, white and grey cast iron light metals, plastics and synthetic materials, al - si - mn - cu - alloys, glass, ceramics, graphite

    對硬鋼、白鑄鐵、灰鑄鐵、輕金屬、塑料、合成材料、鋁-硅-錳-銅合金、玻璃、陶器、石墨等進行車削、鉆孔、銑削、鉸孔、穿孔等加工的標準牌號。
  16. Results show that the high aluminum zinc base alloy za27 alloyed by si has an overall higher hardness and tensile strength ; mn can improve alloy ' s hardness and at the same time reduce the elongation. when the content of mn is 1. 5wt. %, the hardness of the alloy is the highest but the elongation lowest

    試驗結果表明，加si的高鋁鋅基合金za27總體上硬度、抗拉強度均較高； mn的加入有助於za27合金硬度的提高，加1 . 5 mn時合金硬度最高；試驗條件下， mn的加入量超過0 . 8時，其延伸率下降，在1 . 5時達到最低值。
  17. 6013 aluminum alloys containing different main alloying elements minor alloying elements were designed and prepared by ingot - metallurgy processing. the tesile mechanical and aging properties of the studied alloys were tested ; the microstructure of those alloys were observed and analyzed using optical microscope ; the influence of main alloying element mg, si, minor alloying elements mn, cu and homogenization process on the structure and property of studied alloys were studied

    採用鑄錠冶金方法，設計並制備了不同合金元素含量的6013鋁合金，將鑄錠熱加工以後，測試了合金的拉伸力學性能和時效性能，採用金相顯微鏡觀察分析了合金的顯微組織結構，研究了合金中主合金元素mg 、 si ，微量元素mn 、 cu添加量、均勻化溫度和時間對合金組織和性能的影響。
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