過低熔的 的英文怎麼說
中文拼音 [guòdīróngde]
過低熔的
英文
hypereutectic-
The results show that there is anomalistic crystal whose size reaches nanometer grade in fine pvc ; the crystal structure is damaged by jet - milling, which induces the melting point of nanocrystal pvc decreases from 210 to 128. the nanocrystal pvc induces the decrease of plasicizing time and equilibrium torque and the increase of maximal torque, which show that the nanocrystal pvc have self - plasticization in pvc composites
通過sem 、 tem 、 ftir和dsc測試表明:氣流粉碎制得的pvc微粉中具有不規則納米晶體;氣流粉碎破壞了pvc的晶體結構,使納米晶pvc的熔點從210下降到128 ;納米晶pvc使體系塑化時間、平衡轉距的降低、最大轉距升高,具有自增塑作用。In order to prepare low dielectric constant glass powder, we use sio2, boracic acid etc as raw material to prepare glass powder. the result of testing is : its dielectric constant is about 4. 0, and it is suit for our experiment
作為低介常數的玻璃粉料,採用sio2 、硼酸等為原料,通過熔融、研磨製得了玻璃粉料,其介電常數約為4 . 0 ,介質損耗為10 10 4 。By the methods of epn ( electronic probing needle ) 、 sem and xed, the formation mechanisms of the wear - resistant composite layer are studied, the results indicated that, molten iron has infiltrated into the alloying layer under capillary action. this caused ht powder, whose fusion point is low relatively, to be surperheated and formed a surface composite layer
利用電子顯微鏡及x射線衍射等試驗方法,研究了復合層形成機理,研究表明,復合層是在毛細力作用下,鐵液被吸入合金層中,致使低熔點ht粉過熱熔化而形成的,並與母材是冶金結合。The result shows that all these system are simple eutectic, at the same time, the entropy of phase change of every system in the eutectic point is determined by using differential scanning calorimetry ( dsc ) on the basis of experimental research, through the improved one - parameter margules equation by introducing a new variable temperature, the improved equation was designed to compute solid - liquid equilibrium
測定結果表明,這幾組體系均為簡單低共熔體系;同時利用差熱掃描量熱法( dsc )對上面各組體系低共熔點處的相變焓進行了測定。在實驗研究的基礎上,通過改進單參數margules方程並引入新的變量溫度,達到了將此方程用於固液平衡計算的目的。And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates
通過對測試數據的分析與綜合研究,並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比,得出本區花崗巖類巖石具有以下特徵:屬磁鐵礦-型或同熔型花崗巖,其巖漿物質具殼幔混源特徵:主要由熔融態巖漿經結晶分異作用,通過多期變速上侵而形成;其分異演化程度較低;寄主巖基和包體具有同源性;巖石的形成溫度范圍約為500 - 700 ,壓力大約為2 . 50gpa - 4 . 35gpa ,氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ;該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期,為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。The difference of reactive mechanisminduced the difference of their structure. v _ 2o _ 5 product prepared by melting - cooling showed more notable undefined structure. after heat - treating under300, particle size becomes smaller, and aggregate to globate grain, showesbetter electrochemical performance at low charge - discharge rate
熔融淬冷法合成的樣品其無定型結構更明顯,前驅體經過300熱處理后,材料的粒徑變細,團聚成球狀的顆粒,球狀特徵更顯著,在低倍率下具有較好的電化學性能。Some other defects in castings are well - defined cracks and hot tears that develop during solidification, under combination of stress concentration from uneven contraction and the metal ' s low strength at near - melting temperatures
鑄件內部的其它一些缺點是,凝固過程中,在不均勻收縮造成的應力集中和接近熔點溫度下金屬的低強度的綜合作用下,出現的清晰裂縫和熱撕裂。The s - l - e experiment data for the eight binary condensed systems of fatty alcohol / fatty acid were treated by using the improved equation, and the equation was examined with experimental data. at the same time, we used ideal model to predict the tenary s - l - e of n - octadecane / lauric acid / stearic acid system, and we got an accurate result of the simple eutectic temperature. the relative error is 0. 51 % comparing with the experimental result, so we will offer a method of prediction for quickly obtaining multicomponent system phase change materials this article calculated the pcms quantities and energy saving effect in theory, designed the experimental apparatus to measure the energy saving effect, and analyzed the temperature equalization action of the pcms by comparing experiment
利用這種方法,建立了適合醇-羧酸等系列二元體系的單參數margules方程,本文對醇-羧酸系列等8個二元凝聚體系的單參數margules方程的參數進行回歸,並利用整個實驗數據對模型進行了檢驗,另外,本文利用理想狀態模型對一個三元體系18烷-月桂酸-硬酯酸相圖進行預測,通過與實驗數據進行比較,預測的低共熔溫度與實驗測定溫度較為吻合,其相對誤差為0 . 51 ,這將為快速獲取多元體系的相變材料提供預測方法。The cause is mostly due to the fast activation of the injection speed, air inside the mold cavity cannot be squeezed out by the melting plastic materials and hence air is mixed inside the plastic materials. it causes uneven shininess of surface and colour, affecting the outlook and the strength
射紋的形成一般是由於射速啟動過快,使模腔內之空氣無法被熔融膠料壓出,空氣混合在膠料內,使得製品表面光澤及顏色不均,因而影響外觀及降低機械強度。The high vacuum encapsulation of field emission display was realized with low - melting - glass encapsulation technology and high - temperature sintering process
摘要通過採用低熔點玻璃封接技術和高溫燒結工藝,實現了穩定可靠的場致發射平板顯示器高真空封裝。Mainly made of super - fine three - dimensional staple fibers and mixed with some polyester staples of low melting point and finished products scarcely containing glue materials. after being calenderized and ironed, the product get smooth surface, silk - like glittering effect, light and exquisite hand feeling, softness, heat preservation, good washing endurance, no distortion and leaking. it feels like down but with fine tenacity and is the best among all spray bond padding products
用超細三維中空短纖維為主要原料,配以部分低熔點滌綸短纖,成品含膠量極少,經過軋光燙平后,仿絲綿表面平整、有絲光、輕薄、手感細膩、柔軟、保溫好、耐水洗性極強、不易變形、不會跑毛、手感似羽絨,具有質地纖細、表面如蠶絲、有拉力、柔軟等特點,是噴膠棉中最高擋的產品。This kind of hepa filter can reduces pressure loss from two aspects. on the one hand, it chooses melt - blown tiny polypropylene electret filtration medium
它主要從兩方面來降低高效過濾器的阻力:一是選用了熔噴型超細聚丙烯駐極體濾料。The closed insulating system enabled by the upward pressing movement guarantees outstanding firing results in the high and low - melting range
通過向上壓制運動而實現的隔離系統是實現高熔點區和低熔點區具有優異焙燒結果的保證。The specific heat on undercooled liquid state is linear with temperature, and it is the prolongation by extrapolating the curve of the specific heat on stable liquid to lower temperature. in the vicinity of the melting point, no uncontinuity is found
過冷狀態下熔體的比熱與溫度呈線性關系,且為過熱熔體比熱曲線向低溫方向的延伸,在熔點附近未發現比熱的不連續性。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。The method combined the electroplating at low temperature wiht metallurgy using metal powders which have low melting first, a lot of compunf slices by electroplating. and then we link a number of slices together by metallutgy
該復合片作為金剛石圓鋸片刀頭的骨架與磨料,再通過低熔點金屬粉末粘結製成金剛石圓鋸片刀頭。Typical temperature is 800 - 1000 in cvd diamond process, while the high temperature limits its application in optical window and coating such as gaas, zns etc. low temperature can not only make diamond crystal nucleus finer, reduce surface roughness of diamond films and lessen light dispersion, but also eliminate thermal stress
化學氣相沉積金剛石膜過程中,襯底的典型溫度為800 1000 ,這么高的溫度限制了其作為gaas 、 zns等低熔點光學材料窗口和塗層的應用。低溫沉積金剛石膜不僅可以使晶粒細化,降低表面粗糙度,減小光的散射作用,而且可以消除熱應力。In this paper, the structure of fed, operation principle of fed and the manufacturing process were presented at first. emphasis of this paper was put on the investigation in low melting - point glass sealing technique and gas exhausting technique
本文首先對fed平板顯示器的結構、工作原理、製造工藝過程進行論述,重點論述了對fed平板顯示器件的低熔點玻璃封接及除氣工藝的研究。The advantage of al is its applicability to non - conducting substances and also to low - melting - point metallic materials. due to the fact that the levitation capability of single - axis acoustic levitation ( saal ) is comparatively weak and its applications are mainly limited to low - density substances, this paper aims at enhancing the levitation capability of saal and realizing the containerless solidification of those materials with low melting temperature and high density
本文針對當前單軸式聲懸浮能力較弱,而且主要應用於低密度材料無容器處理的研究現狀,以提高聲懸浮能力、實現低熔點高密度材料的聲懸浮無容器凝固為主線,採用理論和實驗相結合的方法,對單軸式聲懸浮過程及其主要影響因素進行了較為系統、深入的研究,主要取得以下幾方面的研究結果。The result of the xrd, sem and tem analysis show that the densification process was controlled by the mechanical of liquid phase sintering with the addition of mgo and ce02 as the sintering aid. the mgo - ceo2 would react with the sio2 which was on the surface of the silicon nitride particles to from silicate liquid phase to accelerate the densification
通過xrd 、 sem 、 tem等測試結果表明,由於同時添加了mgo和ceo _ 2作為助燒劑,其緻密化過程為液相燒結,由燒結助劑和si _ 3n _ 4表面的sio _ 2反應形成低熔點的硅酸鹽相,促進燒結緻密化,冷卻后,在晶界形成玻璃體。分享友人