電化學鍍層 的英文怎麼說
中文拼音 [diànhuàxuédùcéng]
電化學鍍層
英文
electrochemical plating-
The photograph of sem showed that its surface have homogenously coated with nickel, although the hollow glass beads were crashed by agitation and heating. after pretreatment and nickel plating, the dispersity of mica powders evidently improved and the infrared emissivity decreased from 0. 85 to 0. 43, and has certain wave absorbability of radar
對雲母的化學鍍鎳工藝研究中,發現經過預處理后雲母表面獲得了鎳層,通過掃描電鏡分析,鍍鎳后雲母的分散性提高,表面狀態發生了較大的變化,法向積分發射率顯著降低,由0 . 85降低為0 . 43 。Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability
闡述了鍍液中各組分的作用:絡合劑能有效地改變銅、錫的電位,促使初期的置換反應順利進行;還原劑能加快化學反應速度,對反應動力學有積極的促進作用;抗氧化劑能有效地防止鍍液中sn ~ ( 2 + )的氧化;添加劑a能提高鍍液的穩定性,添加劑b對鍍層能有細化和光亮作用,擴大了鍍層光亮區的范圍;添加劑c作為平滑劑,不僅能增強鍍層表面的平整性,而且能提高鍍液的分散能力;表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題,提高了鍍層的表面質量和鍍液的穩定性。The zircondri filin wtut rirconia wa prepared and the removing technology of the zirconia on the zirconium sdrices was obtalned. the methods of chemistry and magnetron sputtring plating were used in order to platc a palladium film, which is characteristic of self catalysis for hydrogen and the sole h - permselectivity on the clean rirconium sdrices prepared by the methods of electrochemitw and ( or ) high temperatur vacuum hydrgenization, which was firstly studied. the plating tedrilogy was obained and the surface modified zirconium membran was prepared
在利用電化學法和真空高溫除氧加氫法去除了鋯表面氧化膜的基礎上,分別採用化學法、磁控濺射法兩種鍍膜技術在其表面上鍍上了一層對氫具有自催化分解、唯一選擇滲透性的金屬鈀膜,首次獲得了鋯基材膜表面上鍍鈀的制備工藝,成功制備了鋯表面改性選擇滲氫膜。( 1 ) first, metallizing abs plastics surface by chemical coarsing, metal ion absorption, metal ion reducing and chemical copper - plating. then, the copper - coating was thickened by electroplating in order to improve adhesion between following - coating and plastics matrix, and nickel was preplating. finally, ni - sic composite was plated
( 1 )通過反復實驗,確定工藝流程:首先通過粗化、敏化、活化和化學鍍銅,使塑料表面金屬化,再電鍍銅加厚銅鍍層,增強后續鍍層與塑料基體的結合力,然後預鍍鎳,最後電鍍ni ? sic復合鍍層。As an initial stage on the process of foamed nickel preparation, a layer with low phosphorus content nickel deposit is applied on polyurethane foam substrate as a conducting layer
在制備泡沫鎳材料的過程中,首先要求在聚氨酯海綿基體上低磷化學鍍鎳制備導電層。On the basis of electroplating and immersion plating tin, and through large numbers of experiments, a new process of electroless plating tin in acid chloride bath solutions including sncl2 2h2o, nah2po2 h2o, special complexing agent, additive agent, stabilizing agent and antioxidant, was established. continuous self - catalyzed deposition of tin on copper substrate was achieved successfully, and half - bright and silvery - white tin deposits with excellent properties were obtained
本文是在電鍍錫、浸鍍錫工藝配方的基礎上,通過大量的試驗,確立了一種以氯化亞錫、次亞磷酸鈉和特定的絡合劑、添加劑、穩定劑,抗氧化劑為基本鍍液組成的酸性氯化物化學鍍錫體系,成功地在銅上實現了錫的連續自催化沉積,獲得了性能優異的半光亮銀白色錫鍍層。The electrode potential of zinc was less than that of ndfeb magnetic powders. ndfeb magnetic powders were protected because zinc had been the anode through the electrochemistry corrosion
金屬鋅鍍層比基體ndfeb電極電位更負,在發生電化學腐蝕作用時,可起到犧牲陽極保護基體的作用。Electroless plating nickel is a kind of electroless deposition process with extensive applicaton. compallng with electro - depositon process, the process has a lot of advamages, such as easy operation, low process condition, uniform electroless plating film
化學鍍鎳是一項已獲得廣泛應用的無電沉積方法,同電沉積相比,它有操作簡便、設備條件要求低、鍍層均勻等優點,其發展勢頭迅猛,前程未可限量。The main experiments and their results or conclusion are as follows : 1. zn, in, sn and their alloys are electroless deposited on the surface of current collector of copper and zinc alloy successfully. this method has not been reported on reference
用化學方法成功地將金屬鋅、錫、銦沉積到集電體表面,特別是用化學鍍方法在電池集電體上沉積鋅銦、鋅錫、錫銦雙層合金和單層金屬鋅尚未見文獻報道。The corrosion test, performed in 5wt % salt fog or with the electrochemical calculation of anodic polarization in 50, g / g potassium chloride aqueous solution, indicates the coatings densification corresponds with their corrosion protection to uranium. the denser the coatings are, the more effective their protection to uranium is. compared with the al coatings produced at - 300v bias voltage and al _ ( 2 ) o _ ( 3 ) coatings produced with ps technique, the al coatings at - 100v and al _ ( 2 ) o _ ( 3 ) coatings with rms and to techniques are denser thus providing a better protection for uranium
電化學參數計算或鹽霧腐蝕結果表明,鍍層的緻密程度與其對鈾基體的保護性能呈現了較好的一致性:鍍層越緻密,其保護性越好,即- 100v偏壓下的鋁鍍層和rms 、 to法制備的al _ 2o _ 3鍍層;鍍層越疏鬆,其保護性越差,即- 300v偏壓下的鋁鍍層和ps法制備的al _ 2o _ 3鍍層。The process of copper metallizing of carbon powder was investigated. the hydrophilicity, sensitization, activation and reduction were also studied. the copper deposit could be made thicker by electromagnetic agitation
摘要研究了在碳粉表面電鍍銅的工藝。首先對碳粉表面進行親水、敏化、活化和還原處理,然後在其表面化學鍍銅,形成導電膜,再採用電磁攪拌的方法電鍍銅,使鍍層加厚。Aerospace process - chemical conversion coating for aluminium alloys - general purpose
航空航天工藝.鋁合金電化學轉換鍍層.一般用途From the results of the weight - loss method and electrochemical corrosion experiment, it was founded that the potential of the cnt composite coating is more positive than that of the pure nickel coating, and the corrosion resistance of the cnt composite coating is better than that of the nickel coating, indicating the corrosion resistance of the cnt composite coating was improved due to the addition of the carbon nanotubes
失重腐蝕實驗和電化學實驗結果則表明:碳納米管的存在可使復合鍍層電位變得更正,有效地提高了復合鍍層的耐腐蝕性能。在同等腐蝕條件下復合鍍層的耐腐蝕性能較之鎳鍍層要高。It was pointed with the experiment methods of electro - chemistry, metallographic analysis, weighing, spot count and bending that : the additives play an important part in getting high quality coating. however, the effect of different kinds of additives on performance of electrolyte and coating and the part of same additive in different electrolyte are varied. each additive is selective to electrolyte
通過電化學方法、金相組織分析、重量法、斑點法、彎曲法等試驗方法研究指出:添加劑對鍍層質量起著至關重要的作用,但不同類型的添加劑對鍍液和鍍層性能的影響並不相同,同一添加劑在不同鍍液中所起作用亦有差異,各種鍍液對添加劑具有選擇性。Mechanisms of delamination, void defects in electroless plating and nonuniformity in electroplate were introduced
重點介紹了鉆孔中分層、化學鍍銅中的氣泡缺陷、電鍍中的鍍層不均勻等缺陷產生的機理。Electrochemical corrosion behaviors of electroless ni - w - p pr2o3 coatings
3鍍層腐蝕電化學行為The morphology, chemical compositions, crystal structures and some properties of these obtained nanowires were systemically characterized. < wp = 6 > because of their novel properties and unique structures, one - dimensional nanostructrue semiconductor materials have generated a tremendous amount of interests in fundamental and potential promising applications in electronic and photoelectronic devices. we fabricated cdse, te and cdte nanowires by direct current ( dc ) electrodeposition in porous anodic aluminum oxide ( aao ) templates
本論文採用電化學模板合成法制備出了幾種新型的納米線,並對它們的形貌、組成、晶體結構及其他一些性質進行了表徵;發展了一種用紫外可見光分光光度法分析電沉積在導電玻璃上的ni - fe合金鍍層的方法;用模板脈沖電沉積法制備了fe20ni80 / ag多層納米線,並對它的形貌進行了初步表徵。( 6 ) the study of electroplating ni ~ co coating on silica fiber showed that a special pretreatment must be preformed before electroless nickel because of the smooth surface of silica fiber. ( 7 ) a ni - co coating was acquired by means of eletroless and electroplating
( 6 )石英光纖表面電沉積ni - co合金鍍層的研究表明,石英光纖化學性質穩定,表面光滑,化學鍍前必須經過特殊的預處理工藝:脫脂,粗化,敏化,活化,烤烘等。The research on the phenomenon of magnetization of the ions in bath show that under the influence of electromagnetic field the speed of electroless deposition is much faster ; the coating thus obtained is compact in texture, contains less phosphorus that those from conventional baths ; and the physical properties of the coating are also improved to a greater extent
摘要通過對溶液中離子磁化現象的研究,在電磁場作用下,化學鍍沉積速率加快,所得鍍層結構緻密,鍍層中磷含量比常規化學鍍探液的降低,鍍層的物理性能也得到了較大的改善。Aerospace - test methods for surface protection - part 6 : chemical and electroplated coatings ; inactive for new design
航空航天.表面保護的試驗方法.第6部分:化學鍍層和電分享友人