細晶化 的英文怎麼說
中文拼音 [xìjīnghuà]
細晶化
英文
fragmentation of grains-
Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys
開創性地用預燒結? ?酸洗工藝制備了相同粒度、不同beo含量的鈹粉,從而開展了beo含量單獨對鈹材_ ( mys )影響的研究,得出一些新的結果:與beo含量相比, beo在鈹中的分佈狀態對_ ( mys )的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用,使_ ( mys )即較高;如果beo較粗大地成簇狀聚集在晶界,反而對_ ( mys )有不良的影響。Based on the principle of mechano - chemistry, the strong shock and crashing mechanical force produced by ls - 250 pulverizer can act to the surface of superfine carbon and white carbon particles during the process. the result of the experiment indicated that distortion and amorphism change occur to the surface crystal lattice of carbon particles, and the phenomena are prick up as the action time of mechano - chemical force
依據機械化學原理利用ls一250型流能粉碎機高速旋轉的動齒工作過程中產生的強烈沖擊、碰撞機械力,使其作用於超細石墨及白碳黑顆粒表面,檢測表明,石墨粒子表面晶格發生畸變及無定形化,且隨著機械力作用時間的延長而加劇。2. 4 affymetrix moe430a genechip analysis of expression pattern differences of undifferentiated escs and neural induced cells. 2. 5 telomeric repeat ampliation protocol ( trap ) assays
2 . 4採用月升metrixmo以30a小鼠表達譜晶元進行未分化及分化后第4 、 10天細胞基因表達譜差異的分析。This is a high magnification of the aortic atheroma with foam cells and cholesterol clefts
高倍顯示動脈粥樣硬化時的膽固醇結晶和泡沫細胞。This high magnification of the atheroma shows numerous foam cells and an occasional cholesterol cleft. a few dark blue inflammatory cells are scattered within the atheroma
圖示:動脈粥樣硬化高倍鏡顯示多量泡沫細胞,偶見膽固醇結晶(棱狀空隙) 。一些暗藍色的炎細胞散在分佈於粥樣硬化病灶內。The crystalline structure changes of pp induced by pan - milling were characterized by x - ray diffraction and raman spectroscopy. xrd analyses show that when pp was co - milled with uhmwpe, crystal transformation of pp occurred, its crystallinity and crystallite size decreased, whereas, only slight reduction of crystallinity and crystallite size were observed and no crystal transformation was found when pp was co - milled with wtr chips, and amorphization of pp was strongly enhanced by co - milling pp with iron
採用x -射線衍射研究了聚丙烯碾磨粉碎過程微觀結構變化, uhmwpe存在下pp發生晶型轉變、結晶度降低和晶粒尺寸減小;彈性材料wtr抑制pp塑性變形,碾磨導致分子堆積有序區域膨脹,晶面間距增大,結晶度下降;剛性材料金屬鐵與pp產生強烈摩擦,加快晶粒細化,晶格破裂導致非晶化。The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed
研究表明,採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料,軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數;試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著;超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比,斷裂強度和延伸率均有一定程度的增強;超細晶ly12的熱膨脹系數在550左右發生明顯的變化。All main ways of metal strengthening including grain refining strengthening, dislocation strengthening, grain boundary and substructure strengthening, second phase strengthening, solid solution strengthening, as well as trip strengthening and so on, have totally found expression in the adi
金屬強化的幾種主要方式:細晶強化,位錯強化,晶界與亞結構強化,第二相強化,固溶強化,細晶強化以及trip強化等都在等溫淬火球鐵中得到了體現。The lath martensite nanometer structure can play the role of fine - particle strengthening and dislocation strengthening as well as coordinate the distribution of dislocation. it is hopeful that the strength and toughness of material with this structure can be increased at the same time
板條馬氏體組織納米化結構,可起到納米晶粒的細晶強化與位錯強化的聯合作用,並可協調位錯分佈,有望使具有這種組織的材料強度和韌性同時得以提高。The main intention of this study is to investigate 95 alumina substrates by tape casting process, which will be used as ceramic packages in kinds of integrate circuit ( ic ). high bending strength and fine surface were required as the basic properties of ceramic substrates. in this thesis, based on the research of the tape casting used in ceramic substrates at home and abroad
本文綜述了國內外研究現狀,著重研究細晶氧化鋁的制備和流延工藝參數的控制,以及細晶95al2o3瓷的制備,研究al2o3原料(包括種類和粒度) 、摻雜改性劑、流延漿料、有機配方等對95al2o3瓷基片性能的影響,獲得最佳流延配方,流延基片綜合性能良好,成功制備了細晶氧化鋁瓷基板。As one ascends the etheric, the biology begins to transmute itself gradually over time to a new cellular structure that is known as “ crystalline ”, which is also a cellular structure that one ' s ancestry knew at an earlier time in human history upon earth
當他提升時,則以太層、生物層開始逐漸變異到新的分子結構中,也就是所稱的「水晶化」 , (注:看到其它譯法如晶體化,舍利子化)這也是他的祖先在地球人類歷史早期就了解的細胞結構。We apply the system to the ultra - fine grain steel welding, the simulated mean grain size in cghaz agreed well with the corresponding independent experimental data. in this paper, three factors influencing the grain growth, the steep temperature gradient in haz. the grain boundary liquid and the precipitates particle, were studied specially using mc technique
研究表明溫度梯度造成的「熱釘扎」現象和晶界液化現象都對靠近熔合線附近的晶粒長大有明顯的阻礙作用,對最終的晶粒大小分佈有重要的影響:而800mpa超細晶粒鑰中的tin粒子山于溶解溫度高,抑制奧氏體晶粒長大的效果十分顯著。The alloy strengthening mechanisms of solid - solution strengthening, distortion strengthening, fine - grain strengthening and deposition strengthening have been reviewed
摘要簡要介紹了固溶強化、形變強化、細晶強化和沉澱強化的強化機理。The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains. intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases. the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms
原始晶界上產生少量液相,形成薄的固液共存粘性層並包圍細化的晶粒,沿晶斷裂主要發生在無粘性層的細晶粒間;而在較低應變速率下,三叉晶界位錯攀援?蠕變協調機制鬆弛晶界滑移產生的應力集中,晶界上產生較多液相,有利於晶界滑移進行。In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料,通過超塑性拉伸和超塑性壓縮試驗,對ti - 1023合金的超塑性進行系統研究,研究坯料細晶組織制備方法,優化超塑成形工藝參數,為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。From an examination of the tensile behavior of cz ly12 alloys under different temperature and strain rate, two kinds of deformation and intergranular fracture behaviors were observed that were opposite to the characteristic strain rate range in fine - grained superplasticity. the mechanisms are described as follows. the high ductility achieved at high strain rate is generally attributed to the dominant role of gbs accommodating mechanisms, which is considered as dislocation creep within grains controlled by subgrains
研究選用自然時效淬火態的ly12鋁合金,進行了一系列不同溫度和應變速率下的單軸拉伸試驗, 480下,觀察到與傳統細晶超塑性特徵區間相反的行為:較高應變速率下,動態再結晶使晶粒細化,促進了晶界滑移,亞晶界控制的晶內位錯蠕變是晶界滑移的主要協調機制。A : last, the mechanical characters of materials with refined structures are tested. it proves that both plasticity and the strength are improved
最後對獲得的細晶材料進行力學性能(抗拉強度、抗壓強度和延伸率)測試,與未加細化劑的合金進行比較,證明塑性和強度都有所提高。In the process of making 95 alumina ceramics, selected five kinds of alumina powder and studied the influence of different alumina powder on the sintering properties and mechanic properties of 95 alumina ceramics, moreover, selected the most agreeable alumina powder according to the apparatus for granularity analysis and scanning electron microscope ( sem ). the influence of different sintering temperature on the sintering mechanic properties, the microstructure of 95 alumina ceramics were investigated by adding y2o3 and la2o3 as two kinds of rare earth additives in alumina ceramics. the results indicated that the additive of la2o3 could improve the properties of 95 alumina ceramics more effectively and could get fine grain and tabular alumina that can enhance the strength of the material
選用了五種al2o3粉料,研究了其對95al2o3瓷燒結性能和力學性能的影響,並結合粒度分析儀sem對al2o3粉料進行優選;通過添加y2o3 、 la2o3兩種稀土添加劑,研究了不同燒成溫度對95al2o3瓷的燒結性能、力學性能及顯微結構等的影響,結果表明:添加la2o3可以有效提高95氧化鋁瓷燒結性能和力學性能,形成細晶和板狀氧化鋁瓷的顯微結構;通過對比不同氧化鋁粉料制備氧化鋁瓷燒成溫度曲線與燒結性能的關系,確定最佳的燒成溫度范圍為1570 ~ 1600 。We specialize in the production of fine chemical compounds. these includes many pharmaceutical intermediate compounds, liquid crystal compounds, electrochemical, photosensitive materials, photo - chromic material and other related specialty light sensitive compounds
我司是一家能生產幾十種醫藥中間體及液晶化學品,電子化學品,感光及光質變色材料,光司發劑等特殊精細化學品的生產基地。In this paper, the crystallization mechanism of synthesizing nanocrystal titanic in liquid media at low temperature is reviewed in detail
詳細介紹了晶態納米二氧化鈦低溫液相合成的晶化機制。分享友人