密緻材料 的英文怎麼說

中文拼音 [mìzhìcáiliào]
密緻材料 英文
dense material
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 材 : 名詞1 （木料） timber 2 （泛指可以直接製成成品的東西; 材料） material 3 （供寫作或參考的資料） ma...
  • 料 : 名詞1 （材料; 原料） material; stuff 2 （喂牲口用的穀物） feed; fodder 3 （料器） glassware 4 （...
  • 材料 : 1. （原料） material 2. （資料） data; material 3. （適于做某種事的人才） makings; stuff
  1. We also attainted mosi2 / sic composite by using melting mosi2 infiltrated sic body which shaped by sic powder. the result show that the diameters of sic particle and shaping methods have effect on the composite ' s microstructure and properties

    另外，嘗試了用mosi _ 2在2050下浸滲直接由sic粉體成型的坯體制備mosi _ 2 / sic復合材料。採用sic顆粒的級配有利於提高坯體密度，但是降低燒結體的緻密度。
  2. The results show that " the frame - pack rolling " technology can increase the densify, avoid cracking during rolling, and effectively improve the deformability and mechanical properties of the spray deposited porous aluminum alloy sheets

    結果表明：外框限制軋制工藝提高了噴射沉積多孔材料的緻密度，避免了軋制過程中裂紋的形成，有效地改善了噴射沉積板坯的軋制性能及材料的力學性能。
  3. Cyclic pressing is a new kind of densification processing, which is introduced to densify as - deposited ring of al - 20 % si / sicp. this paper includes the densification result and rule of this technics. the research shows that this technics can be successfully used to densify spray - forming porous material and can be availably adopted to improve mechanical performance and microstructure. this technics is characterized by simple equipment 、 small expense and flexible process, and these characters will make it come true to producing spray - deposited rings less costly

    本文採用一種新型緻密化工藝?楔壓工藝?對噴射沉積al - 20 % si / sicp大環進行了緻密化加工，採用密度硬度分佈、抗拉強度變化和檢測顯微組織變化的實驗研究方法對其緻密化效果及該工藝規律進行了研究，通過研究表明了楔壓工藝可以成功地用來緻密化噴射沉積多孔材料，該工藝有效地提高了噴射沉積大環件的緻密度和抗拉強度並改善了組織。
  4. In this dissertation, al - si / sicp composites brake rotor with diameter of 1200mm was firstly fabricated by a novel spray deposition technology, and simultaneously coupled brake pad was prepared by a novel dry - powder processing route, termed as two - step pressing process. a wedge pressing technology was developed to densify the as - produce al - si / sicp composite brake rotor

    本文首次採用噴射沉積技術制備了直徑達1200mm的al - si / sicp制動盤，同時採用二次壓制工藝制備出了配套的合成閘片，研究了制動盤的楔壓緻密化技術、機理，復合材料摩擦磨損性能及機理。
  5. As an advanced materials preparation technology, spray - deposition has shown remarkable superiority in producing large - sized alloys and metal matrix composites. however, the spray deposeted preforms usually contain a certain quantity of porosity. besides, the oxide films on the surface of the particles lead to week metallurgic conjunction between the particles. in order to obtain an ideal structure and performance, the porous preforms need further densifying and plastical forming. in this paper, a new technology named wedge pressing was used to densify spray - deposeted 5a06 aluminium alloy, in which the large deformation can be obtained through the sum - up of local deformation and multi - step small deformation. this method can also solved the problems in traditional processing and greatly decreased the producing cost. what ’ s more, the reserch on the wedge pressing desification rules about the large - sized spray deposeted preforms was significant it was vital not only to the further densification of the prefoums but also to the further research on plastical deforming the research was also benefit to the industrialization an the application of the spray deposeted porous materials

    坩堝移動式噴射沉積技術作為一種先進的材料制備新技術，在制備大尺寸合金及金屬基復合材料方面具有顯著的優越性。然而噴射沉積坯件特別是大型坯件通常存在一定量的孔隙，顆粒表面存在一定量的氧化膜，顆粒之間未能完全達到良好的冶金結合狀態，因此需要進行后續緻密化和塑性變形才能獲得理想的組織和性能。本文採用一種新型的楔形壓制工藝，即通過局部變形、多道次小變形累積實現大變形的緻密化加工方法，對噴射沉積多孔坯料進行后續緻密化和塑性變形，很好地解決了傳統加工工藝的難題，大大降低了生產成本。
  6. The formation of new phase such as mullite and gahnite by solid - phase reaction in multiphase materials can benefit the sintering of materials at 1700, decreased apparent porosity to less than 5 %. reducing atmosphere inhibited the synthesis of mullite and gahnite, played a negative role in the densification of multiphase materials

    固相反應生成的鋅鋁尖晶石和莫來石具有較高的活性，使復相材料在1700燒后顯示出更好的燒結性能，其顯氣孔率降低到5以下；還原性氣氛阻礙了莫來石和鋅鋁尖晶石的生成，不利於復相材料的燒結和緻密化。
  7. Study on the synthesis of corundum - mullite - gahnite multiphase materials by one - step sintering process using high purity raw materials showed that the more the content of gahnite in multiphase materials, the high the volume expansion would be introduced in the system, which resulted in the sintering difficulty of the multiphase materials. while the content of gahnite was controlled about 30wt % and the content of mullite was about 70wt %, the densified multiphase materials can be obtained after fired at 1600 or 1700

    採用高純原料一步合成剛玉?莫來石?鋅鋁尖晶石復相材料研究表明：復相材料中鋅鋁尖晶石含量越高，則合成鋅鋁尖晶石時產生的體積膨脹越大，燒結性也就越差；當鋅鋁尖晶石含量為30wt ，莫來石含量較高為70wt左右時，在1600或1700燒后都能得到顯微結構較為緻密的復相材料。
  8. Also, make sure outwear is made of water resistant and tightly neat ( knit ) material

    並且，確保外套式防水的且是使用緻密材料製成的。
  9. W - cu composites prepared from the precipitation w - cu powder have higher sintered density, better mechanical and physical property, more homogeneous and finer microstructure than those prepared from w - cu powder by the balling - reduction method. in chapter 5, a combination of homogeneous precipitation and ball - milling process, namely the mechano - thermochemical process was employed to prepare ultra - fine w - cu powder

    其中，球磨w一cu復合粉（ hp一m ）壓坯在1150下燒結30min后，可獲得相對密度大於99 %的幾乎全緻密的超細晶粒w一cu復合材料， w的顆粒度小於0 . 5林m 。
  10. Abstract : basic stuff of sinter flyash ceramisite is flyash and clay as agglomerant. the si nter flyash ceramisite is of dense in structure, low porosity which can improve t he mechanical properties of the material. it has properties such as high strong a nd low absorption of water and better stability. it is a new type ofbuliding mate rial

    文摘:燒結型粉煤灰陶粒的主要原料是粉煤灰和作為粘結劑的粘土，文中所述燒結粉煤灰陶粒結構緻密，孔隙率低，能較好地改善了材料的力學性能，具有高強、吸水率低、穩定性好等特點，是一種新型建築材料
  11. Before 900 c, ti reacts with al to form tial intermetallics ; above 900 c, c reacts with remain ti to form tic triggered by the exothermal reaction of ti and al ; tial reacts with tic to produce dense tial / ti2alc composites

    間的放熱反應引發c和未反應完全的ti反應生成tic ; tiai金屬間化合物和tic反應併合成緻密tiai / tizaic復合材料。通過保溫階段， tizaic長成層狀多品結構，同時復合材料緻密化。
  12. The thickness of film is frequent non - uniform, and factors are a good many. in practice, the production of uniform - thickness coatings from geometric position in the vacuum chamber

    研究表明，使用等離子體源輔助沉積的光學薄膜折射率明顯提高，更加接近於塊狀材料，膜層結構比傳統沉積手段更加緻密，附著力也很高。
  13. But it also includes two fatal disadvantages : first, at is difficult to be sintered and its density is low, which causes its lower strength ; second, in the temperature range of 1023 - 15 73 k, at can decompose into al2o3 and tio2 easily, which can cause the stress concentrated and raise the heat expansion rate

    但是該材料本身存在的兩大致命的缺點，在很大程度上限制了它的廣泛應用： （ 1 ） 、鈦酸鋁難以燒結，燒結體的緻密度低，因而強度不高； （ 2 ） 、在750 1300的溫度范圍內易分解成氧化鋁和二氧化鈦，造成材料內部應力集中，並使材料的熱膨脹率升高。
  14. Cementitious capillary crystalline waterproofing coating ( abbreviated ccwc ) is a new type of cement - based waterproofing materials, which is characterized by its very good adhesive performance and impermeability to water, self - rehabilitating ability, permanent waterproofing effect, good aging resistance and corrosion resistance, simple construction method and harmless to hunman etc. ccwc consists of ordinary portland cement, quartz sand and reactive substances and other supplementary ingredients, whose reactive substance can permeate into the internal part of concrete structures through water and produce insoluble crystals filling capillary pores or crack of the concret through reaction with cement hydrates and unhydrates

    水泥基滲透結晶型防水材料是以硅酸鹽水泥或普通硅酸鹽水泥、石英砂等為基材，摻入活性化學物質而組成的一種新型防水材料。摻入的活性化學物質以水作載體向混凝土內部滲透，與混凝土中未水化的水泥及部分水泥水化產物發生結晶反應，生成不溶於水的結晶體，堵塞毛細孔道，使混凝土緻密、防水。這種防水材料具有粘結力強、抗滲性能好、自愈合能力強、防水效果持久、耐老化、耐腐蝕、易施工、對人類無害等特點。
  15. The results show that, composite could be fabricated on the complicated surface by means of sodium silicate sand mold combination with vacuum infiltration process. when the substrate was 10 mm, composite layers reached 3 mm to 5 mm in thickness with high strength interface and less casting defect. microstructures of grey cast iron and low chromium cast iron matrix composites with various volume fraction has been analyzed

    結果表明：用水玻璃砂型（芯）加負壓鑄滲的工藝能夠實現復雜表面（曲面）顆粒增強復合材料的制備，澆注方式簡單可靠，基材厚度在10mm時，復合層厚度能達到3 5mm ，且復合層鑄造缺陷少，復合效果好，界面緻密而且結合強度高。
  16. Combining the characteristic of the fabrication of fgm by particle co - sedimentation, the densification of fgm has been designed from three aspects : the densification mechanism, the correlative parameters of the additives and the sintering schedule. subsequently, the densification of the w - mo - ti system composites has been investigated

    結合共沉降法制備功能梯度材料的特點，從緻密化的機理選擇，燒結劑種類、含量和粒度的確定，燒結機制的確定等三個方面對其緻密化思路進行了設計，並對論文選用的w - mo - ti體系的復合材料的緻密化進行了初步研究。
  17. In this paper, nanosized al2o3 ceramic particles were chose as reinforcing phase. enhanced with ultrasonic wave the particles were covered with copper using method by electroless plating, the copper - matrix composite was developed by hot - press sintering process of the composite powder. the composition, microstructure, hardness, density and dry sliding wear property of the new material have been studied

    研究路線為：選用納米級al _ 2o _ 3陶瓷顆粒作為增強相，在超聲波的環境中用化學鍍的方法完成對納米al _ 2o _ 3陶瓷顆粒表面的金屬銅包覆，採用熱壓燒結成型技術以復合粉末為原料制備成納米al _ 2o _ 3陶瓷顆粒增強銅基復合材料，研究分析復合材料的成分、組織結構、硬度以及緻密度，對試樣進行了干滑動摩擦磨損實驗。
  18. Based on nanometer powders, cajc cvbased oxides were synthesized by constant sintering, cold isostate pressure and hot pressure methods. it can be found that sintering methods have a great influence on thermoelectric performances : the sample synthesized by hot pressure method is most dense and has the best thermoelectric performances. the microstructures and thermoelectric properties of cascog - based oxides doped by four dopants have been investigated

    採用不同的后續工藝制備最終的熱電材料，研究不同工藝對熱電性能的影響發現：熱壓燒結制備出的熱電材料最緻密，其熱電性能也最好；先冷等靜壓成型后常壓燒結方法次之；直接常壓燒結法燒出的樣品氣孔最多，性能也最差。
  19. The research on the properties of the copper nanoparticles / paraffin thermosensitive composite materials reveals : the thermal sensitivity and the thermal expansion are " aried by the cempress moulding in heat condition with the change in density ; the thermal sensitivity is varied by the mechanical milling with the change in particle shape and particle dimension ; the mass ration of copper and paraffin in the composite materials also affects the thermal sensitivity, the thermal expansion and the thermal stability with the change in copper nanoparticles and paraffin interface

    對復合顆粒進行壓力成型后制備的復合材料進行性能測試分析表明：熱壓成型工藝通過改變復合材料的緻密度來影響材料的熱敏性和熱膨脹性。高能球磨工藝主要通過改變球磨時間使銅粒形狀和粒徑發生變化來影響復合材料的熱敏性，以及改變銅粉和石蠟的質量比使納米銅粒和石蠟的復合界面發生變化來影響材料的熱敏性、熱膨脹性和熱穩定性。
  20. The research history of fullerene and cnts was short, but their characteristics have great value in practical application. metallic nano - particles have different crystal orientation with different synthetical techniques. their special mechanical, optical and electrical properties will drive the development of magnetic materials, electronic materials and optical materials et. al

    納米金屬粒子在不同的制備工藝下具有不同的結晶形態，而且其具有的特殊的力、熱、光、電、磁的性質，引起了在磁性材料、電子材料、光學材料、高緻密度材料等方面的應用。
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