燒結程度 的英文怎麼說

中文拼音 [shāojiēchéngdù]
燒結程度 英文
degree of sintering
  • 燒 : Ⅰ動詞1 （使東西著火） burn 2 （加熱或接觸某些化學藥品、放射性物質等使物體起變化） cook; bake; hea...
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 程度 : 1. （知識、能力的水平） level; degree 2. （事物變化達到的狀況） extent; degree
  1. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。
  2. The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool

    同時，也不同程度地影響了磨具燒結體的微觀結構和性能； （ 2 ）可促進在燒結過程中莫來石的形成，降低結合劑的熱膨脹系數，加強了結合劑與磨料的匹配性，提高了磨具的抗折強度和抗沖擊強度； （ 3 ）在一定溫度范圍內還可防止碳化硅磨具出現黑心現象，拓寬了碳化硅磨具的燒結溫度適應范圍。
  3. For the ceramic materials, the effects of additives such as pbo, b2o3, co2o3, mno2, cr2o3, sb2o3 on the electrical properties of bismuth - free zno - glass varistor were studied. the glass phase formed mainly by pbo and b2o3 during sintering process could decrease the sintering temperature, improve grain uniform growth and inhibit grain second growth. nonlinear property could be improved by properly adding co2o3, mno2, and cr2o3

    對瓷料而言，系統研究了非bi系zno -玻璃料配方體系中pbo 、 b2o3 、 co2o3 、 mno2 、 cr2o3 、 sb2o3等添加劑對壓敏電阻電性能的影響規律，其中， pbo 、 b2o3在燒結過程中形成的玻璃相，可降低燒結溫度，促進晶粒均勻生長，抑制晶粒二次長大， co2o3 、 mno2 、 cr2o3做為非線性添加劑，適量添加可提高樣品的非線性， sb2o3做為改性添加劑，在燒結過程形成的尖晶石相可細化晶粒，抑制晶粒二次生長，改善樣品的綜合電性能。
  4. Begin with the comparation of two widely used methods producing the strontium titanate, the oxalate decomposition method shows its advantage hi the microstructure and future performance. the effect of caco3 is studied, and so is the effect of the donor dopant, such as nb2o5, y2o3 and la2o3. the dopant of tio2 is also considered, which involve ti / sr ratio, sintering temperature, oxygen partial pressure, donor dopant, grain growth and future electric performance

    從對比草酸鹽分解法和固相合成法這兩種制備srtio _ 3主晶相的方法開始，在予合成料的制備過程中分析了施主nb _ 2o _ 5 、 y _ 2o _ 3 、 la _ 2o _ 3以及caco _ 3所產生的影響；在tio _ 2摻雜的問題上，綜合考慮了ti / sr比、燒結溫度、氧分壓、施主摻雜、晶粒的微觀生長與成瓷后的元件宏觀電性能等之間的相互關系。
  5. This paper systematically discussed the fundamental, characteristics, research status and equipment of microwave sintering, and introduced the preparation and development of sintered ndfeb magnets, on the basis of which the effects of the parameters on the heating rate and sintering temperature were investigated. and by means of optical metallurgical analysis, x - ray diffraction analysis and the measurement of density and magnetic properties, the paper compared the properties and technology of ndfeb magnets sintered in microwave magnetic field with that of magnets sintered in conventional heating process

    本文系統論述了微波燒結基本原理、特點、研究現狀和燒結設備，介紹了燒結ndfeb制備工藝和發展，在此基礎上研究了微波磁場燒結ndfeb永磁材料過程中各因素對升溫速率、燒結溫度的影響，並通過金相顯微分析、 x射線衍射分析、密度及磁性能測試等手段，將微波磁場燒結的ndfeb磁體與常規燒結的磁體進行了工藝與性能的對比分析。
  6. Baseing on the request of low coercivity and high squareness in application, we had confirmed the main formulation of the lizn ferrite ; during the study of the conventional ceramic process, with the main formula foundation, we mainly studied the influence of ti4 +, co3 + on lowering coercivity and bi2o3, v2o5 on lowering sinter temperature. the results showed bi2o3 good characteristic on lowering sinter temperature and the sample which mixed with 1 % bi2o3 could reduce 40 % coercivity through slowing heating rate and extending the holding time

    在氧化物陶瓷工藝技術研究中，按實際應用中低矯頑力、高矩形比的要求，確定了lizn鐵氧體的主配方，在主配方基礎上進行了ti4 + 、 co3 +等離子對降低矯頑力的研究以及添加bi2o3 、 v2o5助熔劑對降低燒結溫度的研究，發現bi2o3具有優良的降低燒結溫度的特性，在添加bi2o3樣品燒結過程中，降低升溫速率，延長保溫時間可以降低40 %左右的矯頑力。
  7. The experimental data has been used to validate pdm and low temperature sintering mechanics. the advantage and disadvantage of pdm have been discussed also. for the first time, the pdm is used to study the low temperature sintering mechanics of uo _ 2, and the research results indicate : 1

    3 、基於燒結頸長大速率與緻密化動力學方程得出，影響二氧化鈾低溫燒結的因素有原始粉末粒徑、粉末堆積方式、坯塊原始密度、燒結溫度、燒結時間、燒結氣氛等;粉末壓坯一定時，燒結溫度、燒結時間和燒結氣氛就成為控制低溫燒結的關鍵因素。
  8. The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties

    微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。
  9. However, iron powder is liable to oxidation, which will reduce the surface activities of the powder and hinder the sintering process

    但是鐵粉很容易氧化，粉末表面活性降低，妨礙燒結過程的充分進行，使實際燒結過程難以達到理想的燒結程度。
  10. The experiment results show that the samples can not be sintered when the addition phases were in a very low level, and their strength and thermal shock resistance performance were neither, there were too much liquid phase created when the addition phases were in a high level, it can decrease the pore rate of the samples, and the space for structure adjusting during thermal shock, resulting in the decrease of their thermal shock resistance performance

    實驗發現，當外加劑含量較少時，樣品的燒結程度低，強度不理想，抗熱震性能不好。外加劑含量過多則生成過多的液相，使樣品的氣孔率大大減小，減少了材料在熱沖擊過程中的結構調整空間，從而降低了材料的抗熱震性能。
  11. During preparation added mgo etc as mineralization were added to decreases sintering temperature of al2o3, control the mineral composion and microstructure, optimize the performance of heat and mechanics, etc, resulting in its use in regenerative combustion field

    在制備過程中，引入mgo等礦化劑來降低氧化鋁的燒結溫度，促進氧化鋁陶瓷的燒結，調整材料的礦物組成，控制材料的顯微結構，優化材料的熱學性能和力學性能等，使其能夠應用於高溫蓄熱燃燒領域。
  12. With the temperature increasing, the grains of the lanio3 samples grew large steadily and the crystallinity became better

    隨著燒結溫度的升高， lanio _ 3樣品的晶粒尺寸變大，結晶程度提高，晶格在a軸方向上伸長，在c軸方向上收縮。
  13. Beginning with the analysis of the effects, which are brought by the application of only one kind of pore - former and some other operating factors ( such as sintering temperature, warmth retaining time and so on ), on the properties of the beads, e. g., porosity, strength, size distribution of the beads and pores size, etc., these effects are discussed in detail and the relationship between the factors is studied thoroughly. the use of mpf ( multi - pore - former ) is introduced for the first time, which is of the most importance and significance in this paper

    研究從造孔劑選用和燒結過程對顆粒的孔隙率、機械強度、孔徑分佈及粒度分佈的影響入手，找出了造孔劑的種類及含量、燒結溫度以及保溫時間等因素對最終所得產品顆粒的性能影響及它們之間的相互關系，並首次提出將造孔劑復配使用來對填充法加以改進，無需擴孔處理，即能直接制備宏孔徑、高強度、小粒度、比表面大的多孔玻璃載體顆粒。
  14. 2. the severe erosion is due to the bad skeleton intensity and isolated w particals, which results from the poor reduce of w surface oxidation. when the arc works, the capillary iv is poor, so cu is splitting greatly

    （ 2 ）嚴重燒損是由於w粉表面的氧化膜在燒結過程中不能很好的還原，致使骨架的燒結強度不高，大部分w顆粒以孤立的狀態存在，毛細作用微弱， cu很容易噴濺，在反復的開斷后， w顆粒剝離造成。
  15. Sintering speed increased greatly with the help of great quantity of heat of the molten iron, the great quantity of heat sent out from the carbonizing reaction and a little quantity of liquid, this sintering type is an instantaneous sintering, the sintering compacting can carry completely in a few minutes, the degree of sintering compacting is very high. ( 6 ) the vc - fe surface composite has high rigidity, it ' s rigidity exceeds 60hrc, under condition of dry sliding friction and overloading

    鑄造燒結時，過熱鐵水的巨大熱流密度沖擊、粉料壓坯中的碳化反應的放熱以及壓坯中少量液相的產生使壓坯的燒結速度大大提高，此時屬瞬間液相燒結，在十幾分鐘內燒結過程即可完成，可達到很高的緻密化程度。 （ 6 ）鑄態下vc一fe表面復合材料具有很高的硬度，其鑄態硬度） 60hrc 。
  16. After extensive conditional experiments such as reactant concentration, acidity ph, temperature and time of reaction have been done, and the factors influencing the sol stability such as washing method, drying temperature and roasting temperature and time have been discussed, the best conditions in this work are given

    通過考查超細粉體制備過程中反應物濃度、 ph值、反應時間與溫度、影響溶膠穩定性的因素、洗滌方式、乾燥溫度、燒結溫度與時間對產品性能影響的大量實驗，給出了本實驗的最佳參數。
  17. It was found that the introduction of ca2 + enhanced the sinterability of the material. the relative density of sintered specimens increase with the content of ca2 + in the composition range of 0 < x < 0. 3. it was confirmed that a high relative density can be obtained at relatively low sintering temperatures by using uniform, high surface area la1 - xcaxcro3 powders, which modifies the crystalline structure and microstructure of ceramic specimens

    研究結果表明， a位ca ~ （ 2 + ）的引入在一定程度上能夠降低材料的燒結緻密化溫度：細小、均勻、高比表面積的粉料能夠有效降低材料的燒結緻密化溫度；燒結溫度的降低可以減少la _ （ 1 - x ） ca _ xcro _ 3中液相含量和鉻氧化物的揮發，有利於材料晶體結構、顯微結構的改善。
  18. The study of phase formation of the polycrystalline la1 - xagxmno a series of polycrystalline la1 - xagxmno3 samples with x range nominally from 0. 05 to 0. 45 were investigated, and found that the critical phase temperature has close relation with the content of silver in the sample. and pointed out in the case of agl + doped in lamno3, when x achieved a fixed value ( x = 0. 15 ), ag would separate out, ag - rich phase appeared, samples became compound phase

    並且當銀含量達到一定程度時會有單質銀析出，我們認為這是因為銀離子在溶膠?凝膠的過程中被還原成單質，以銀團簇的形態存在於樣品中，隨著燒結溫度的提高，銀原子逐漸被氧化成銀離子，取代la ~ （ 3 + ） ，進入晶格，形成鈣鈦礦結構。
  19. Physics capability such as density, conduct and mechanics capability such as tensile strength, hardness and stretch ratio were tested during technical course. photograph analysis and empa analysis were carried out. the influence factor on materials physics and mechanics capability were investigated, which induced by powders synthesis technique, pressure and sinter temperature

    在制備銅基復合材料的工藝過程中，對材料進行密度、電導率等物理性能和抗拉強度、布氏硬度、延伸率等力學性能的測試，進行金相分析和empa分析，研究了粉末合成工藝、壓制壓強、燒結溫度等對材料物理、力學性能的影響，探索了材料密度、布氏硬度、電導率、抗拉強度、延伸率等之間的關系。
  20. Sintering temperature, type and amount of rare earth were found. 2

    比較上述因素的影響程度，優選出最佳燒結溫度、最合適的稀土種類及添加量。
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