過碳化物 的英文怎麼說

中文拼音 [guòtànhuàwù]
過碳化物 英文
percarbide
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 碳 : 名詞[化學] （非金屬元素） carbon （c）
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 碳化物 : carbide碳化物金屬陶瓷 carbide cermet; 碳化物耐火材料 carbide refractory; 碳化物陶瓷 carbide ceram...
  1. Carbon can promote the forming of carbide of fe3c mostly during the ma, while it seems that chromium makes amorphism easier. in addition, this paper also made a research on the milled powder forming technology, and presented some improvement methods

    機械合金化過程中，碳元素可以促進以fe _ 3c為主的碳化物的析出，鉻元素使粉末更趨向于非晶態轉變，並使材料出現超順磁現象。
  2. Progress of transition metal carbides in heterogenous catalysis

    過渡金屬碳化物的研究進展
  3. Effects of low level carbon monoxide on glutathione peroxidase in rats

    低濃度一氧化碳對大鼠谷胱甘肽過氧化物酶的影響
  4. The solid solutions all were supersaturated and metastable, and would dissolve each other with further milling, which was available for the achievement of multi - carbide composite

    球磨過程中，碳化物之間能夠互相固溶，可以用於高能球磨製備碳化物及納米復合材料的研究制備多元碳化物復合材料。
  5. 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

    對不同碳化鎢體積分數的灰鐵和低鉻鑄鐵基復合材料的微觀組織結構分析表明：碳化鎢體積分數為52時，復合層內基體為灰口鑄鐵組織，顆粒直接分佈在灰鐵基體上，部分碳化鎢顆粒有相互接觸的現象，基材與復合層之間沒有明顯的過渡；碳化鎢體積分數為36 、 27時，復合層內基體為高鉻鑄鐵，由面塊狀的奧氏體和白條狀碳化物組成，碳化鎢顆粒表面固溶於基體組織中，粒形基本保持完整，分佈均勻，與基體構成冶金結合，基材與復合層之間存在一個明顯的平緩過渡區。
  6. The experiments showed that wc and vc can dissolve mutually in the carbonizing reaction. when wc ' s content exceeds vc ' s, vc will dissolve into wc and make wc ' s crystal lattice bring aberrance and become wc1 - x, contrarily when vc ' s content exceeds wc ' s, wc will dissolve into vc and also make vc ' s crystal lattice bring aberrance. the surface cermet composite has high rigidity and well wear - resistance

    （ 7 ）採用鑄造燒結技術，通過加入毗顆粒和v班一vc的原位放熱反應成功制取了碳化物陶瓷質量百分數超過60 %的表面金屬陶瓷材料，實驗證實wc與高溫碳化反應生成的vc相互可以很好的固溶，當wc的含量超過vc時， vc可以固溶到wc中，使wc的晶格發生畸變，成為昵卜: ，反之當vc的含量超過wc的含量時， wc可以固溶到vc中，也會造成vc的晶格畸變。
  7. X - ray diffraction spectrum, empa methods and several tests including mechanical properties, electrochemistry, corrosion wear, on - site plate hanging, the microstructure of steel has been observed and analyzed, performance has been studied, and corrosion - abrasion, fragility mechanism, and microalloy application in ferritic stainless steel have been explored comprehensively. the test results of electrochemistry, corrosion wear and on - site plate hanging have been analyzed. the analytical result shows that crsomo has enough corrosion resistance in phosphoric acid slurry because it has high chromium and low carbon

    通過實驗室的電化學試驗、腐蝕磨損試驗和磷肥廠的現場掛片試驗結果分析，表明： cr30mo鐵素體不銹鋼高鉻低碳的配合，保證其在磷酸料漿中具有足夠的耐蝕性： cr30mo中（ fe ， cr ） _ 23c _ 6 、 （ fe ， cr ） _ 7c _ 3 、 mo _ 2c 、等碳化物硬質點從基體的彌散沉澱析出可提高鋼的硬度和耐磨性，使得鋼在磷酸料漿中具有良好的耐磨蝕效果。
  8. Since 1980s, taed is mainly used as bleaching activators of persalts in cleaning products. it can perform under low temperature and in less time than peroxides alone. a recent report shows that under different ph taed reacts with hydroperoxides differently

    自70年代以來， taed就主要作為低溫漂白活性劑與過酸鹽（如過硼酸鈉，過碳酸鈉）組合應用於洗滌產品中，這樣就可以清除因洗滌時間、溫度致使過氧化物無法洗凈的污物。
  9. It reacts with hydrogen peroxide in the solution and forms a stronger oxidant ( peracetate anion ). since 1970s, taed has been applied to detergents and washing powder as a bleaching booster of peroxides. it can remove the dirt that is difficult to be disposed of by peroxides alone

    自70年代以來， taed就主要作為低溫漂白活性劑與過酸鹽（如過硼酸鈉，過碳酸鈉）組合應用於洗滌產品中，這樣就可以清除因洗滌時間、溫度致使過氧化物無法洗凈的污物。
  10. Microstructure of the composite layer was analyzed with help of optical microscope, scanning electronic microscope ( sem ), electronic probe microanalysis ( epma ) and x - ray diffraction ( xrd ). the compacting of the billet and the forming mechanism of the carbide reinforcement were studied based on thermodynamics and kinetics of reaction, sintering theory and the result of dta. at the same time, the wear - resistance of the composite layer was studied under condition of dry sliding friction

    利用光學顯微鏡、掃描電子顯微鏡、電子探針以及x -射線衍射儀，分析了表面復合層的基體組織結構；運用反應熱力學、動力學、粉末燒結理論和燃燒合成理論，結合差熱分析結果，探討了表面復合層壓坯的燒結緻密化原理和碳化物增強相的形成機理；利用坯塊在真空燒結爐不同溫度下的燒結出來的顯微組織分析，模擬出坯塊的燒結過程中的化學反應過程。
  11. Abstract : a new simulating method is established for the calcul ation of the hardness profile of high - carbon - concentration deep - carburization, on the basis of analyzing this process and taking into account the influence o f carbide solution and dissolution, carbon - concentration and temperature on the diffusion behavior, and the influence of the environment factor on carbon trans fer through the gas - solid interface

    文摘:在對高濃度深層滲碳的特點進行分析的基礎上，考慮到碳化物的析出與溶解、溫度及碳濃度對擴散行為的影響，氣氛環境對相界面碳傳遞過程的影響，淬火烈度對滲碳層冷卻效果的影響，提出了一種新的模擬高濃度深層滲碳滲層硬度分佈的方法。
  12. The result shows that tempered martensite has apparent lath character when temper is between 740 ~ 780, and the hardness of welded joint is 264 ~ 237hv, which can get better performance of the welded joint the lath character of martensite in welded joint disappears, and the carbide in the tempered sorbite of the base metal will aggregate when temper temperature is above 780, and the hardness and plastic property will reduce obviously

    結果表明，在740 ~ 780之間回火，焊縫硬度為264 ~ 237hv ，回火馬氏體板條特徵明顯，可以獲得優良的焊接接頭性能；回火溫度超過780 ，焊縫板條馬氏體特徵消失，母材回火索氏體中碳化物產生偏聚，硬度、塑性明顯降低。
  13. Analysis which was based on the fracture mode of mould in wire - cutting processing, and the results show that the partial - quenched of mould, the non - uniformity of blank temperature and the carbide segregation inside the material are the main reasons of deformation and cracking

    摘要通過分析在線切割加工中模具的破壞形式表明：模具不完全淬火、坯料溫度的不均勻分佈、材料內部的碳化物偏析是模具變形與開裂的主要原因。
  14. According to the characters of transformations in solids, the ma process can be divided into three stages : physical fragment izing stage, diffusion and solid solution stage, and carbide forming stage

    根據相變特點將fe - cr - c三元合金的機械合金化過程分為三個階段：物理粉碎階段、擴散固溶階段和碳化物析出階段。
  15. Study on the supercooling austenite transformation diagram and carbide of s7 steel

    7鋼過冷奧氏體轉變曲線及碳化物研究
  16. The results showed that the fracture of the tooth - razor was brittle fracture, the material quality was normal, the main fracture reson was that the carbide in the microstructure of the tooth - razor was distributed as reticulation, the brittleness of the razor was increased and the toughness was decreased, so the tooth of the razor was broken by external force when it was working

    結果表明，該剃齒刀的斷齒屬于脆性斷裂，主要是顯微組織中的碳化物分佈不均勻（呈網狀分佈） ，使刀具的脆性增大而強度、韌性下降，導致刀具在使用過程中由於外力的作用發生斷齒。
  17. The action of the carbide of magnesium series, lanthenide series and the mixture of them on the grain refinement in magnesium alloys was studied. the mechanism of grain refinement of magnesium alloys was also discussed

    本文還研究了鎂系、鑭系碳化物以及二者混合物在鎂合金的晶粒細化過程中所起的作用，並對鎂合金的晶粒細化機理進行了探討。
  18. In this work, using elemental powders as starting reactant materials several carbide powders such as wc, sic, tic, zrc and corresponding alloys had been fabricated by ball - milling technique. x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ) and other measurement techniques had been used to monitor the structural changes of powders after some ball milling time and the properties of the cemented tungsten carbides. and the mechanism for the formation of matal carbides by ma has also been discussed

    本文主要對機械合金化（ ma ）技術在碳化物制備中的應用進行了研究，利用高能球磨，以元素粉末為原料，制備出wc 、 sic 、 tic 、 zrc的粉體以及wc基硬質復合材料，並利用x射線衍射、掃描電鏡、透射電鏡等方法分析和研究了球磨過程粉體的變化以及燒結后硬質合金的性能，對機械合金化制備碳化物的有關機理進行了研究和探索。
  19. It is the first time to study the mechanism of interfacial reaction in sic / ti composites by quantum chemistry computation methods. a suitable method to calculate titanium carbide and silicide was found and the thermodynamic and dynamic data involved in interfacial reaction of sic / ti composites have been obtained

    首次將量子化學計算理論運用於金屬基復合材料界面反應的研究中，運用gaussian98量子化學計算程序，找到了適合於研究過渡族金屬ti的碳化物和硅化物的計算方法，獲得了sic ti基復合材料界面反應的熱力學和動力學數據。
  20. Transition metal nitrides / carbides are sorted as interstitial compounds and known as " platinum - like metal " owing to their similar surface and catalytic properties to those of noble metals platinum and rhodium

    摘要介紹了過渡金屬氮化物碳化物獨特的晶體結構和電子性能及其與催化性能的內在聯系。
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