金屬化通孔 的英文怎麼說
中文拼音 [jīnzhǔhuàtōngkǒng]
金屬化通孔
英文
plated-though-hole-
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。It is obvious that, in general, guard rings should be on both sides of the pcb with plated - through holes
顯然，一般情況下，在pcb的上下表面都應設計保護環，二者通過金屬化孔相連。Metallic coatings - porosity tests - porosity in gold or palladium coatings by sulfurous acid sulfur dioxide vapour
金屬鍍層.孔隙試驗.通過亞硫酸二氧化硫蒸氣的金和鈀鍍層的孔隙度We suggested one kind of planar metamaterials with periodic patterns tiled by two resonant components, which consist of triangular and pentagonal patch arrays and a metallic ground plate interconnected by via arrays together
摘要設計了一種由兩種不同諧振單元套構而成並按周期排列組成的平面型異向性材料，該平面結構由三角形和五邊型的金屬貼片周期平鋪構成上表面，並通過金屬化導孔與下底板的金屬底板連接。A composite electrode material comprising carbon nanotube and transition metal oxide may meet both the powerand the energy requirements. the properties of supercapacitor utilizing carbon nanotube as electrode material are studied
通過充分利用其較大的比表面積和適宜的孔徑，可望得到大容量、高功率的超級電容器，與過渡金屬氧化物復合更能提高其綜合性能。( 3 ) the free - standing porous silicon films with continuous porous structure were prepared on single crystal silicon wafer by the method of anodic oxidation and electrochemical etching - electropolishing, and firstly used as the anode materials for lithium ion secondary batteries. the capacities of lithium ions storage and the process of charge and discharge of this nano - silicon anode materials as well as the influence of the structure of ps on behavior of storing lithium ions were inspected at length. on the other hand, through the process of charge and discharge in cells, the lithium of light metal element could be electrochemically doped into ps at different doping levels
胡勁松河北師死大學碩士學位論文（ 3 ）利用陽極氧化法在單晶硅基底上制備了多孔硅自支撐膜，並首次將這種具有連續多孔結構的硅材料用作了理離子電池的陽極材料，考察了這種納米級硅陽極的儲鉀性能和充放電過程，分析了材料結構對其儲理行為的影響；另一方面，利用這種電池充放電過程在多孔硅中電化學引入了不同點綴程度的輕金屬鉀元素，考察了鉀點綴對多孔硅自身結構，及至性質所帶來的影響，提供了一種通過電化學方法插入埋離子從而連續調整多孔硅發光性質的有效方法。Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode
採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極，用掃描電鏡對陽極塗層顯微形貌進行分析，通過強化電解壽命試驗、開路電位測試、消耗率試驗及循環伏安曲線研究了金屬氧化物陽極的電化學性能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成不同，塗層顯微形貌表現出很大差異，這種差異直接影響陽極電化學性能.電化學性能試驗結果表明銥鉭鈦金屬氧化物陽極在酸性介質和海水中具有良好的電化學穩定性和電化學活性.此外，銥鉭鈦金屬氧化物陽極在海水中的消耗率很低，屬于不溶性的陽極材料，作為外加電流陰極保護用輔助陽極具有廣泛的應用前景The multiwalled carbon nanotube array was fabricated by chemical vapor deposition ( cvd ) in the template of porous alumina in the presence of a catalyst such as cobalt and the carbonaceous source of c2h2
以多孔氧化鋁為模板，金屬鈷為催化劑，乙炔為碳源，通過化學氣相沉積法制備出多壁碳納米管陣列。Carbon nanotubes were separately synthesized by a new pulsed laser ablation ( pla ) for in - situ growth method and cvd support method in this paper. ft - ir, uv - vis, xfs, laman, tem, xrd, bet methods were used to characterize the sol, carbon nanotube and other products in the experiment. in the pla method, the sols containing carbon nanotubes were successively obtained by using 1064nm pulsed laser to ablate the interface of fe / c, or ni / c targets and ethanol under common temperature and pressure, and then carbon nanotubes were directly acquired by evaporating the ethanol
脈沖激光轟擊原位生長法是在常溫常壓下使用1064nm波長的脈沖激光轟擊目標靶與乙醇流動相的固液界面來連續制備含有碳納米管的溶膠，進而除去乙醇相得到碳納米管，其中目標靶為石墨與fe 、 ni等金屬催化劑混合壓製成的靶片； cvd基體法是使用自製的六方介孔mcm - 41多孔材料為基體，負載fe催化劑活性組分，通過cvd法催化裂解c2h2來生長碳納米管。分享友人