結晶石墨 的英文怎麼說
中文拼音 [jiējīngdànmò]
結晶石墨
英文
kish- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 石 : 石量詞(容量單位, 十斗為一石) dan, a unit of dry measure for grain (= l00 sheng)
- 墨 : Ⅰ名詞1 (寫字繪畫的用品) china [chinese] ink; ink cake; ink stick2 (寫字、繪畫或印刷用的顏料) ...
- 結晶 : 1 (析出晶體) crystallize2 (晶體) crystal 3 (成果) crystallization; fruit; product; quintess...
- 石墨 : black lead; graphite: [礦]plumbago石墨棒 graphite rod; 石墨電極 graphite electrode; 石墨潤滑劑 aq...
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The structures and characteristics of several graphite samples are measured by means of powder x - ray diffraction ( xrd ), brunauer - emmer - teller ( bet ) surface area measurement, inductively coupled plasma ( icp ) spectroscopy, particle size analysis and electrochemical measurements. the effects of origin, structure, impurity, particle size, specific surface area of carbon materials on the electrochemical characteristics are studied. a synthetic graphite with abundant resources, low cost and favorable performance is determined as the raw material for modification of graphite
採用xrd 、 bet 、 icp 、激光粒徑分析及電化學性能測試等方法,對國內外多種典型石墨樣品的結構與性能進行比較,研究石墨材料的來源、晶體結構、雜質含量、顆粒大小、比表面積等因素對其充放電性能的影響,確定一種性能較好、價格低廉、來源廣泛的普通人造石墨粉作為熱處理與摻雜改性、以及復合結構炭材料研究的原材料。The acquired stm images exhibit that tryptophane can form a uniform adsorption layer at room temperature. two kinds of structures were observed : two - dimensional stripe structure and two - dimensional monoclinic lattice
實驗發現,在室溫下色氨酸分子可以在石墨表面形成均勻的吸附層,並形成二維條狀結構和二維單斜晶格兩種有序結構。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明:所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求;聚四氟乙烯樹脂熱分解溫度超過400 ,但在ptfe中加入無機填料會使復合材料吸水率提高,熔融溫度及分解溫度降低,且伴有氧化分解反應;碳纖維表面含有c = o及c - o - c等極性基團,有利於提高其與其它組分的相容性,提高層間剪切強度;均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系,擬合曲線基本能表示各配方的摩擦系數發展趨勢;配方中不加銅粉或不加石墨,其摩擦系數均較高,說明銅粉和石墨應該配合使用;當銅粉15份、石墨60份時,銅粉30份、石墨30 - 40份時,銅粉60 、石墨15 - 30份時,摩擦系數均具有較低值;純聚四氟乙烯樹脂在空氣冷卻時結晶度最大,磨損量也是三者中最大的;同時,固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的:不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副,在金屬表面均可形成潤滑轉移膜,從而減少金屬摩擦副表面間的直接接觸,大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。The pyrolysis process of the cmf aerogel was investigated firstly by means of ir technique. the results showed an infrared active vibration occured in the temperature range of 400 - 600 " c, which was corresponding to the tubstatic graphitized structure formed hi these aerogels
採用ir分析技術跟蹤c _ mf氣凝膠的熱解過程,發現400 600之間樣品中出現石墨化結構的紅外活性振動,表明炭氣凝膠的微結構中開始有亂層石墨化微晶出現。The sand, which is formed by dark green crystals called olivine, is brought to the surface by volcanic activity
這片綠沙由稱為橄欖石的墨綠色結晶體形成,被火山活動帶到地表。Isothermal and non - isothermal crystallization experiments conducted for the nanocomposite showed that addition of graphite nanosheets significantly changes the crystallization behaviors of the nylon 6 resin
復合材料體系的等溫及非等溫結晶實驗顯示,石墨納米薄片的加入顯著改變了尼龍6的結晶行為及結晶機理。Graphite ) and the special viscoelasticity of polymer, interlayer exfoliation of the filler and its nanocompounding with polymers can be realized in the shearing force field of pan - milling, through the effects such as deformation, dislocation, tension - sliding and shearing exfoliation of graphite, the tension - thinning, pulverization of pp, as well as the imbedding, mixing and dispersion of graphite flakes in pp powder etc. the results show that the interlayer exfoliation of graphite and nano - compounding with pp proceeded stepwise, caused by a combination of friction, squeezing, stretching, and shearing in three - dimension during pan - milling
石墨片層的受限空間影響i一pp / yep25o復合材料中pp結晶行為,進入石墨片層間的pp分子一部分擇優取向,形成沿( 040 )晶面法線方向擇優生長的a一晶,另一部分相對分子質量較小、運動活性較高的pp分子則受到石墨片層的擠壓和限制而轉化為y -晶,在i一pp廳ep250復合材料中, y -晶相對含童達34 . 8 % 。It was found that in the case of non - isothermal crystallization, the onset and maximum crystallization temperatures of the nylon 6 of the nanocomposites are increased, while the crystallinity and crystallization growth rate is reduced
在非等溫條件下,尼龍6石墨納米薄片復合體系的結晶起始溫度以及最大結晶速率時的溫度均比純尼龍6有明顯的提高,但結晶度以及結晶速率卻出現下降。The results indicate that phosphate film forms at first at the boundaries between ferrite and graphite
結果表明,磷化膜晶核首先在鐵素體石墨界面等處形成,是一個不均勻形核過程。A solid - state shear compounding technology based on pan - milling ( s3c ) has established, by which the graphite with weakly combined structure are exfoliated and then compounded with pp at nanoscale. the obtained pp / graphite nanocomposites have greatly enhanced electrical and thermal conductivity. their structures and properties were characterized by analysis of particle size and distribution, sem, tem, xrd, the electrical conductivity, the thermal conductivity and heat - decomposition temperature etc. by taking advantages of the layered inorganic fillers with a weak interaction between layers ( e. g
磨盤碾磨剪切力場使pp分子鏈斷裂,相對分子質量減小,石墨的導熱和潤滑性能抑制pp的降解和粉碎,使pp / yep250 (膨脹石墨250倍)復合粉磨盤碾磨固相剪切復合技術及導電導熱pp /石墨納米復合材料的制備與性能體中, pp分子運動活性提高,結晶能力增強,為pp在熔融加工中進一步向己剝離的石墨片層間擴散,形成納米復合結構創造了條件。The charging - discharging curves look like the letter " v " and have no flat plateaus due to the different sizes of the micropores. increasing the httmax, the micropores in ant samples become fewer and smaller, therefore the charging - discharging capacities decrease. when httmax = 2100, the charging - discharging capacity reaches the minimum since the number of the micropores reaches the minimum and the size of them become very small, the number of graphite crystallite in ant samples is still few and the size of them is also small
在htt _ ( max ) 2100的范圍內, ant試樣屬于亂層結構,石墨微晶尚未出現或數量很少,貯鋰機制為「孔隙貯鋰」 ,由於孔隙的大小不一,插鋰時克服阻力所需的電位也不同,因此充、放電曲線呈「 v 」字形,無平穩的充、放電電位平臺;隨著htt _ ( max )的增大,試樣中孔隙逐漸變小、變少,充、放電容量也逐漸變小。The re - suits demonstrate that the carbon fibers which have serious skin - core structure, few graphite layers which intricately piled up have low mechanical properties
結果表明,造成碳纖維力學性能低的直接原因可以歸結為嚴重的皮芯結構、芯部組織疏鬆或有孔洞出現、晶相少且無明顯取向、石墨層排列紊亂。High - performance carbon fibers must have few voids, few score region, and they also have more graphite layers which regularly piled up and highly oriented
提高碳元素的含量,提高結晶度,減少甚至消除皮芯結構,減少孔洞,從微觀上提高石墨層的取向和堆疊程度是獲得高性能碳纖維的必要條件。As the temperature and the soak time increasing, crystallite size, graphitic degree and average particle size of the graphite increase, while specific surface area decreases. the electrochemical performance of modified graphite is improved with the change in structure and surface characteristics
結果表明,隨著熱處理溫度的升高和恆溫時間的延長,石墨材料的石墨化度、石墨微晶尺寸l _ c及l _ a逐漸增大,比表面積減小,平均粒徑增大,充放電性能得到改善。分享友人