聚晶的 的英文怎麼說
中文拼音 [jùjīngde]
聚晶的
英文
polycrystalline-
Nor could i pass unnoticed the suggestion of the bleak shores of lapland, siberia, spitzbergen, nova zembla, iceland, greenland, with the vast sweep of the arctic zone, and those forlorn regions of dreary space, - that reservoir of frost and snow, where firm fields of ice, the accumulation of centuries of winters, glazed in alpine heights above heights, surround the pole and concentre the multiplied rigours of extreme cold
還有些地方我也不能看都不看,一翻而過,那就是書中提到的拉普蘭西伯利亞斯匹次卑爾根群島新地島冰島和格陵蘭荒涼的海岸。 「廣袤無垠的北極地帶和那些陰凄凄的不毛之地,宛若冰雪的儲存庫。千萬個寒冬所積聚成的堅冰,像阿爾卑斯山的層層高峰,光滑晶瑩,包圍著地極,把與日俱增的嚴寒匯集於一處。 」Studies on the liquid crystalline characters and phase transition behaviors of a poly ester imide copolymer
聚酯酰亞胺共聚物的液晶特性和相轉變研究Ajs20, the precursor contained 20wt % alunina sol seeding, was calcined at around 1000 to get free - aggregation nano - sized a - alaos powders with a median particle size of 70nm. and, calcining ajs2, the precursor contained 2wt % alumina sol seeding, at hoo ' c, we get a - alaos nano - sized powders with a particle size of loonm and good dispersion by tem. this paper also gives the proper mechanisms of these factors " influences on the transformation to alpha phase
研究結果顯示,含有20wt膠體籽晶的前驅體ajs20在1000左右煅燒就可獲得平均粒徑為70nm 、無團聚的納米- al _ 2o _ 3粉體;而含有2wt膠體籽晶的前驅體ajs2在1100即可獲得粒徑在100nm左右、幾乎單顆粒分散、有少量「樹枝狀」微結構的納米- al _ 2o _ 3粉體。Presently pdcs are usually manufactured by hp - ht means. domestic pdcs are inferior to foreign products. domestic pdcs exhibit lower impact resistance, are more susceptible to delaminating, chipping and breakage
國內聚晶金剛石復合片的性能與國外先進產品有較大差距,主要表現在抗沖擊性能較低、易分層、崩刃、破裂等方面。Jiye pcd die blanks for drawing wire can always be trusted ; your dies always get excellent polishing quality, producing wire with flawless surface finish
基業cd聚晶金剛石拉絲模坯擁有非常了的拋光質量,能確保拉線的表面光潔度。The result showed that with increasing of hard segment content, the crystallinity of copolymer increased, thehard se gment content and the molecular weight of polyether were influence on the mechanical properties of copolymers
結果表明,共聚物的結晶度隨聚酯硬段含量的增加而增加,而其力學性能則受聚酯硬段含量和聚醚分子量的影響。Through the research on the crystallite of the composites modified with silicone coupling agent and pp - g - mah, research showed that the size of the crystallite and oriented crystallization had obviously influence on the mechanical performances. the sem results showed that nano - sio2 was dispersed well in pp, which promoted the matrix undergo shear yielding rather than brittle fracture
通過對硅烷偶聯劑?馬來酸酐接枝聚丙烯共聚物作為界面改性劑改性pp微晶的研究,表明微晶尺寸變化與復合材料的力學性能有關;在界面附近形成擇優取向的結晶層,促使基體發生屈服變形,提高了復合材料的韌性。Wear mechanism of cubic boron nitride tool in cutting austenitic manganese steel
聚晶立方氮化硼刀具切削高錳鋼的磨損機制Porous formtion mechanism was additional discussed, and it was considered that micro - fibrils were pulled out of the ribbon - like crystallines of ptfe resin particles while nodes were the agglomeration of un - stretching ptfe particles
另外探討了微孔膜形成機理,認為纖維是從帶狀結晶的樹脂顆粒中被拉出的,而結點是未被拉伸的樹脂聚集在一起形成的。Where the dreamland of butterfly built, full, of flowers, spreades a love story of the butterfly lovers. there is only romantic hearthorb full of the room after all prosperities have gone, flying in the space of jinduo titles like butterflies gathering on crystal jade
那一片花事盛開的地方,構築著蝴蝶的夢鄉,傳頌著化蝶的情事,靜待一切繁華落盡,只留下滿室的浪漫柔情,在金舵化蝶聚晶玉的空間里飛舞。Ii. the direct diamond - diamond bonding between granules in domestic pdcs are poor. accordingly more catalyst metal are left over, this weaken the strength of the whole pdc
國內聚晶金剛石層中晶粒之間直接連接的共價健( c - c健)比例少,催化劑金屬含量過高,導致宏觀強度低,應採取如下措施: 1The influence factors to electrochemical deposition and gradient distribution of pmgcf, such as the predrying extent of the swelling cathode film, the excessive power voltage of the cathode, the ph value of electrochemical reduction medium solutionn, the microstrucure of polymer matrix, were majorly invested in this thesis
本文著重討論了了溶脹陰極膜的預乾燥程度、陰極過電位、電解質溶液的ph值、聚合物基體的結構等因素對金屬銅在溶脹陰極膜中的沉積分佈以及結晶的形態的影響。2. reduce the content of catalyst metal to prevent it from blocking the direct bonding of diamond granules and improve the thermal stability of pdcs
減少催化劑金屬加入量以避免其隔斷金剛石晶粒之間的直接健合,同時提高聚晶的熱穩定性。The apparent activation volume calculated by the model is about 2500a3, which was ten times larger than that of usual amorphous alloy and was at the same range of the amorphous polymer. the model shows the main deformation mechanism of nanocrystalline ag is grain boundary sliding, which in some extent declares the similar forms of equation with amorphous alloys. with the ananlysis to the hrem of nanocrystalline ag, the discrepancy of the apparent activation volume between the nanocrystalline ag and amorphous alloys is interpreted by the loss of atoms participating in grain boundary sliding without enough reconstruction by the movement of atoms under the low temperature
運用晶界滑移的熱激活理論對壓縮實驗結果進行了數值擬合,擬合曲線與實驗數據符合很好,得到了晶界滑移的表觀激活體積(熱激活基本單位體積與局域瞬態應變的乘積) ,約為2500a ~ 3 ,先當于幾十個原子體積大小的瞬態變化,約為非晶合金的10倍以上,與非晶高聚物的表觀激活體積相當。Study on the spherulites of polypropylene
聚丙烯球晶的研究The main points of this dissertation consist the following points : l. this dissertation has summarized basal theory and app. l ication prospect of ferroelectric liquid crystal, ferroelectric liquid crystal polymer and chiral additive. a kind of chiral additive of liquid crystal and two kinds of polyacrylates were designed here. 2
本論文在緒論中總結了小分子鐵電性液晶、高分子鐵電性液晶及手性添加劑等液晶的基本理論與應用前景,並設計了一種液晶手性添加劑,兩種丙烯酸酯型聚合物。With plating time going on, the nano - polycrystal gathering grows in two dimensions, and the new nano - polycrystal layer appears simultaneously on the formerly formed nano - polycrystal surface. because the boundary and defect densities in quenched and tempered 45 steel is higher than those in annealed steel, the nano - polycrystal gatherings formed at its surface at the beginning of electro - deposition are more concentrated, and then their size is smaller. the microstructure of the ni - p alloy coating has closed relation with its phosphorus content with the increase of phosphorus content, the microstructure of coating turns from nano - crystalline to the amorphous
隨著施鍍時間的延長,納米晶聚晶體在橫向二維生長的同時,在納米晶聚晶體的表面上也進行著三維方向的新的一層聚晶體的生長;在調質態45鋼表面,由於其具有比較高的晶界和缺陷密度,因此在沉積初期,納米晶聚晶體的成核密度也較大,從而在二維方向聚晶體的尺度較小,鍍層沉積初期表現為緻密細小的鱗片狀組織。On the surface of annealed 45 steel, as the pearlite in it contains cementite phase and has high crystal boundary density, the nucleation and growth of deposits prefer to occur at the pearlite at the beginning during depositioa the coating exists in form of nano - polycrystal layers composed by gathering of nano - sized crystals
在退火態45鋼表面,由於珠光體組織中含有滲碳體相且具有比較高的晶界密度,因而在沉積初期鍍層優先在此處形核和生長;鍍層在基體表面是以納米尺度的晶粒聚集在一起形成的聚晶體形式存在的。Polymer networks have been produced in a variety of liquid crystal phases in cells without surface treatment. the liquid crystal / monomer mixtures are prepared using a ferroelectric liquid crystal and a diacrylate monomer. the polymerisation of the monomer is carried out by uv curing the mixture when it was kept in a specific phase which can be obtained by controlling the temperature of the ferroelectric liquid crystal. both the monomer and the polymer network will depress phase transition temperatures. the effects of the polymer network on the packing arrangement of the ferroelectric liquid crystal molecules are examined by means of optical microscopy. the molecular packing arrangement of the ferroelectric liquid crystal in a specific mesogenic phase is frozen on the formation of a polymer network in the ferroelectric liquid crystal in that phase. the existence of the diacrylate based polymer network can improve the electrooptical switching of the ferroelectric liquid crystal
在灌裝于未經表面處理的樣品盒內處于不同狀態的液晶中制備聚合體網路.液晶/單體混合物由鐵電液晶和雙丙烯酸單體製成.單體的聚合通過維持該混合物處在一定的液晶態的條件下經紫外線固化來完成.不同的液晶態可通過控制鐵電液晶的溫度來獲得.雙丙烯酸單體或聚合體網路的存在會導致鐵電液晶載體的相變溫度降低.通過光學顯微鏡可觀察聚合體網路對鐵電液晶分子組合排列的影響.結果發現:在某一液晶態中鐵電液晶分子的組合排列可被在該液晶態中聚合而成的聚合體網路所穩定,雙丙烯酸基聚合體網路的存在可改良鐵電液晶的電光開關特性V. improve the material of substrate to improve its adaptability to polycrystalline diamond
改進硬質合金基體的材料,使其與聚晶層的硬度和熱膨脹系數具有更好的適配性。分享友人