高鋁顆粒 的英文怎麼說
中文拼音 [gāolǚkēlì]
高鋁顆粒
英文
a- grain-
Al self - oxide powder, al2o3 - al blending powder and sic - al blending powder extrusion wires obtained by experiments had high tensile strength as well as high conductibility
實驗所得的鋁粉末自氧化擠壓線材及用al _ 2o _ 3和sic顆粒強化所得的線材具有高的抗拉強度和良好的導電性能。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。The equipment could mill all kinds of material which could be milled on traditional pulverizer, but also could mill powder which strictly prescribe the maximal diameter and size distribution is confined, such as kaoline, talcum powder, copycat powder, coating, mica, hormones, alumina etc
設備都能超細加工在普通粉碎機上能夠被粉碎的物料，尤其適合加工那些嚴格規限最大顆粒井要求粒度分佈狹窄的產品，比如高嶺土、滑石粉、復印機粉、塗料、雲母、生長素、氧化鋁等。This paper emphasizes the effect of the dissolution of aluminosilicate during diagenesis may provide more radiogenic strontium which would result in a high content of strontium in carbonate rocks. so we should avoid the vein of carbonate and select the samples with less terrigenous clastic, less grain content and lacking calcite cementation collected as analysis samples. the microcrystalline limestone and micro - to fine - crystalline dolomite are rather fairly whole rock samples
作者還強調了成巖過程中由長石等鋁硅酸鹽溶解提供殼源sr所造成的碳酸鹽礦物成巖蝕變可能表現為較高的sr含量；因此，在用全巖樣品進行旨在反映海水組成的各種分析時，應迴避碳酸鹽脈，選擇含陸源碎屑低、顆粒數量少、缺乏方解石膠結物的樣品，微晶灰巖或微?粉晶白雲巖是較為理想的全巖樣品。The grain consists of calcium - aluminum minerals that could have formed only at the high temperatures extremely close to the sun
這顆塵粒包含有鈣-鋁礦物質，而這些物質只能在距離太陽非常近的高溫環境下形成。The optimum technic conditions have been gotten in in preparaing high dispersive a1 ( oh ) 3 colloid by controlling reactant concentration, ph value, reaction temperature, matured time. they are the prereguisite to prepare nanopoder of a - a1203. this paper entirely and systematically studies the following three kinds of drying stages : oven drying, dehydration with alcohols and azeotropic distillation stage
本文採用逐步逼近法進行了氫氧化鋁膠體的沉降實驗，對膠體形成的體系反應物的初始濃度、體系的ph值、反應溫度和膠體的陳化時間進行了系統優化，並獲得了制備高分散氫氧化鋁膠體的最佳工藝參數；此膠體經過過濾、 80下烘乾后所得樣品，在掃描電鏡下直接觀察其粒徑為50nm ，且分佈范圍窄，顆粒的表面清潔，為球形。The result of experiment showed that the reaction between ti and c is a thermodynamic course, when 2 wt % mg is added to melt, it can restrain the formation of fragility phase al3ti, and gained al matrix composite which contained tic reinforced particles only. because mg reacts with the forms a micro - high temperature field around the oxide around the graphite particles and the oxygen gas which is brought by the immersion bell, and the reaction gives out a lot of heat energy, thus forms many high micro - fields in melt, which prompt the reaction between the al and ti
加入適量的mg （ 2wt ）可以抑制tic al復合材料中的脆性相al _ 3ti的產生，生成僅含tic的鋁基復合材料；由於活化劑鎂在體系中與石墨顆粒周圍的氧化物、以及外來的氧反應放熱，在熔體中形成微高溫區，促進al - ti反應，同時， al - ti反應也是放熱反應，因此體系中的內能急劇增大，促使al _ 3ti分解以及ti朝c顆粒擴散，縮短反應的孕育時間。Abstract : the investigations of high temperature plastic behaviors of al2o3 - based oxide ceramic particle composites and al2o3 - based non - oxide ceramic particle or whisker composites since 1980s are reviewed respectively
文摘:介紹了自80年代以來人們對氧化鋁基氧化物陶瓷顆粒復合物以及氧化鋁基非氧化物陶瓷顆粒或晶須復合物高溫變形的研究。Many researches have showed that the mechanical properties of al2o3 - matrix ceramics in which ti ( c, n ), tic or tin was dispersed could be improved a lot, which might be widely used in the field of machining. al2o3 - matrixed ceramics were fabricated by gas pressure sintering ( gps ) and gps with post - hip based on current techniques in this experiment. for al2o3 - ticn composite ceramics, the densitification process was controlled by the mechanism of solid phase sintering.
大量研究表明：採用ti （ c ， n ） 、 tic或tin作為第二相彌散顆粒所制備的氧化鋁基復相陶瓷相對al _ 2o _ 3單相陶瓷而言，性能有了顯著的提高這類復相陶瓷性能優良，在機械加工領域有著廣泛的應用前景本實驗採用氣壓燒結（ gps ）以及gps結合熱等靜壓（ hip ）后處理兩種工藝制備氧化鋁基復相陶瓷。Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。The conclusions are drawn as following : 1. regularity of fabrication in aluminum matrix composite ring - shaped performs with large dimensions and effects of parameters were investigated, based on the novel crucible movable spray deposition technology and equipment. the optimal parameters are that the diameter of the delivery tube is 3. 8mm, spray gas pressure is 0. 8mpa, spray height is 200mm, and transferring pressure of sic is 0. 5mpa
通過系統的實驗研究得到如下結論: 1 .基於新型的移動坩堝自動化控制噴射沉積環坯制備技術及裝置，研究了大尺寸鋁基復合材料環坯的制備規律，討論了噴射沉積工藝參數對沉積坯形成過程的影響，得到了最佳工藝參數:導流管直徑d = 3 . 8mm ，霧化氣體壓力p = 0 . 8mpa ，噴射高度h = 200mm ， sic顆粒輸送壓力p送= 0 . 5mpa 。The results showed that sic particles dispersed uniformly in the composites, that the composites " hardness increased with the increasing volume fraction of sic particles, and that the composites had the outstanding wear resistance properties that were superior to the matrix alloy
結果表明， sic顆粒在復合材料中分佈均勻；復合材料的硬度隨sic顆粒體積含量的增加而增加，且比基體合金的硬度高； sic顆粒增強鋁基復合材料具有優良的耐磨性能，且優于基體合金。And the microstructure, the hardness and the wear resistance properties of complicated parts had also been studied and analyzed. the results showed that under the same experiment condition, the semi - solid flow and deformation properties of the composites increased with the increasing of the sic particles " volume fraction which below 12 %, that he composite reinforced with different volume fraction of sic particles were die - cast into complicated parts successfully, that sic particles dispersed even more uniformly in their complicated parts, and that he complicated parts " hardness was better than the composites "
結果表明，在sic顆粒體積含量低於12的情況下， sic顆粒含量越高，復合材料的成型性能越好； sic顆粒增強鋁基復合材料能夠用壓鑄的方法制備復雜壓鑄件； sic顆粒在壓鑄件中分佈更為均勻，且呈單顆粒；壓鑄件的硬度比復合材料鑄錠的硬度高； sic顆粒增強鋁基復合材料的壓鑄件耐磨性高於復合材料鑄錠。The results of the hardness test showed the composites " hardness increased with the increasing volume fraction of sic particles. results of the wear tests showed the composites had the outstanding wear resistance properties, especially in lubricated sliding case, the wear resistance properties of the composites were superior to the matrix alloy over one or two orders of magnitude
結果表明，復合材料鑄錠中， sic顆粒分佈均勻；材料的硬度隨sic顆粒體積含量的增加而增加； sic顆粒增強鋁基復合材料具有優良的耐磨性能，在油潤滑條件下，復合材料的耐磨性能比基體合金高一至兩個數量級。And the quality control system was developed for ddmbac. the coagulating property of ddmbac was discussed and the interaction model between ddmbac and colloidal particles was developed. the influence of ddmbac on coagulation using aluminum sulfate ( as ) or polyaluminum chloride ( pac ) was also investigated based on analytical method and interaction model
本文探討了ddmbac對高嶺土顆粒的混凝除濁性能，提出了ddmbac與膠體顆粒間的相互作用機理模型;在已有的研究成果基礎上，分析研究了不同混凝條件下ddmbac對硫酸鋁、聚合氯化鋁混凝效果的影響規律和機理。Tic particle possesses high hardness, wear - resisting property, high temperature stability, high melting point, high young ' s modulus. as reinforced phase, it can remar improve the wear - resisting property, strength and high temperature stability, and it become one popular research way
Tic顆粒具有高硬度、高熔點、高模量等特性，作為增強體對提高復合材料的耐磨性和高溫性能有顯著的提高，因此tic顆粒增強鋁基復合材料成為金屬基復合材料領域的熱門課題。Thin films with thickness of 0. 31m and 0. 36m respectively on si substrate, have been successfully prepared by a sol - gel spin coating method. cubic nanocrystals can be obtained at relatively low sintering temperature with an average grain size of about 47 nm and 51 nm respectively. the aluminia - doped scsz thins film are the same dense as the scsz thin films. however, there are a small amount of pinholes found in the microstructure of the titania - doped scsz films
0 . 70固體電解質納米晶薄膜。燒結實驗結果表明，兩種薄膜均在650以上開始晶化，溫度越高，晶化越完全，在800可完全晶化所得納米晶顆粒呈純的螢石結構立方相鋁和鈦摻雜的納米晶顆粒的平均大小分別為47和51nm 。The technique require simple process and equipment, so the cost is low, it ' s a promising method for fabricating mmcs. the mmcs made by the method offer high strength and modulus as well as good high - temperature properties, when compared to corresponding monolithic alloys and they are promising materials for automotive and aerospace industry applications
其工藝設備簡單，成本低，制備的顆粒增強鋁基復合材料具有高強度和彈性模量及好的高溫新能，與單一的鋁合金相比，是一種在航天工業和汽車工業中有應用前途的材料。During the latest course of reaction, the formed tic diffuses to melt with quicker speed as the tic / al + mg, and the nucleation rate is increased
稀土ceo _ 2凈化鋁熔體和顆粒的表面，改善了增強體與熔體的浸潤性，提高復合材料的綜合性能。分享友人