硼化作用 的英文怎麼說
中文拼音 [pénghuàzuòyòng]
硼化作用
英文
boronation-
Using bf3 - et2o as a catalyst, the title compound was synthesized from allyl alcohol and epichlorohydrin by a series reaction included addition and cyclization
烯丙醇和環氧氯丙烷在三氟化硼乙醚絡合物的催化作用下進行加成和環化反應制得標題化合物。Isopropylidene glycerol is prepared by condensation of acetone with glycerol, thereafter it was esterified with octanoyl chloride in pyridine as catalyst, and finally the latter was decomposed with boric acid
摘要以甘油和丙酮為原料制得異丙叉甘油,其與辛酰氯在吡啶催化下酯化,再經硼酸作用下分解得到單辛酸甘油酯。Ndfeb magnet is mainly made of neodymium iron and boron, with excellent magnetic property abundant raw material and reasonable prices, ndfeb magnet can be used as an ideal magnet in mini - motor permanent magnetic resonance sound device magnetic suspension system, magnetic transmission machine and iatrical apparatus and etc. for ndfeb, its surface is usually treatd with some special methods. the surface treatment method include zine nickel tin silver gold plating phosphor and spray epoxy resin etc
其主要應用在微特電機、永磁儀表、電子工業、汽車工業、石油化工、核磁共振裝置、音響器材、磁懸浮系統、磁性傳動機構和磁療設備等方面。釹鐵硼磁鐵容易生銹、氧化,所以對釹鐵硼磁鐵,其表面通常需作電鍍處理,如鍍鋅、鎳、銀、金等,也可以做磷化處理或噴環氧樹脂來減慢其氧化速度。Upwards of 1273k, b2o3 will volatilize gradually and lose the protection to the interphase
而在1273k以上氧化硼揮發,喪失了對界面相的保護作用。If use jinke taed as activators, the application scope of sodium perborate will be widen by improving oxidation even at low temperature
如果相應地應用金科taed作活化劑,則更能在低溫下發揮氧化作用,大大提高了過硼酸鈉的應范圍。As a mild oxidant, sodium perborate has been widely ( used ) in detergent, paste, issue bleach, hair care products due to its good stability and the high speed of oxygen delivery
過硼酸鈉作為一種溫和的氧化劑,憑其較高的穩定性,快速的放氧速度,被廣泛地應用於洗滌劑、牙膏、織物漂白和美發產品中。Taed is often used with sodium perborate and sodium percarbonate to form a good bleaching system. the main bleaching agent in this system is peracetate anion, which can increase whiteness and remove dirt, e. g., stains, tea stains, juice, and wine stains
Taed與過硼酸鈉或過碳酸鈉組合使用作為洗滌過程中的氧化物漂白系統,它們在水中反應後生成的過乙酸陰離子是該系統中的主要漂白劑,起增白、去污(如咖啡、茶、紅酒、咖哩、果汁和蔬菜等污漬)和抗微生物作用。Target material was hexagonal boron nitride ( hbn ) and working gas was pure argon
用射頻濺射法在si襯底上制備立方氮化硼,靶材為hbn , 。工作氣體為氬氣。The results indicate that submarine hot water deposition is the main ore - forming process of the uranium - bearing vonsenite deposit, and that the economic deposit was formed on the basis of further enrichment of boron and iron through the superposition and transformation by regional metamorphism and migmatization
研究表明,該礦床的成礦作用主要表現為海底熱水沉積成礦,區域變質混合巖化作用對礦床進行了強烈的疊加改造,使硼鐵進一步富集而形成工業礦床。The function of c2h1obn in ni - w - b alloy electrodeposition has been studied by means of cyclic voltamxnetry ( cv ), the deposition mechanism of ni - w and ni - w - b alloy studied by potentiostafic step and their structures before and after heat treatments investigated by xrd and dsc. the effects of bath compositions and deposition conditions on the structure and properties of ni - w - b alloy and ni - w - b - ptfe composite coatings were explored
本文主要以ni - w - b合金為研究對象,運用循環伏安方法研究二甲基胺硼烷在ni - w - b合金電沉積過程中的作用、階躍電位研究ni - w合金和ni - w - b合金電結晶機理、 xrd和dsc方法研究ni - w合金和ni - w - b合金電沉積層的結構以及合金在熱處理過程中的結構變化。A large number of attempt and painstaking experiment have been done in this paper according to existing project. we also do lots of chemical and electrochemical etching research in material of lab6, and find out three kind of methods to produce the field emitting cold cathode including reactive ion etching ( rie ) with oxygen, wet process etching and electrochemical etching. through produce some field emitting cold cathode single tip including lab6 field emitting cold cathode, molybdenum field emitting cold cathode, tungsten field emitting cold cathode, tungsten rhenium field emitting cold cathode, molybdenum covered with lab6 film field emitting cold cathode
而且,目前可借鑒的參考文獻較少,圍繞著前人做過的方案,本文做了大量工作,在已有文獻介紹的基礎上,結合原有的理論和實踐基礎,摸索出了包括高溫氧作用反應離子( rie )刻蝕法、濕法腐蝕法和電化學腐蝕法在內的三種制備工藝,運用電化學腐蝕工藝成功制備了單尖的六硼化鑭場發射冷陰極尖錐、鉬場發射冷陰極尖錐、鎢場發射冷陰極尖錐、鎢錸合金場發射冷陰極尖錐以及有六硼化鑭薄膜覆蓋的鉬場發射冷陰極尖錐。In the growth of c - bn films, the bombardment of particles with high energy plays a vital role
在立方氮化硼的形成過程中,高能粒子對薄膜的轟擊起著至關重要的作用。The borohydride reducing reagent supported by the strong acid cation exchange resin was prepared by the strong acid cation exchange resin reacting with sodium borohydride. the reductive ability of the resin reducing the carbonyl compounds is strong, so the yields are generally pretty high ( 51 % ?
用強酸型離子交換樹脂與硼氫化鈉作用制備了強酸型離子交換樹脂支載的硼氫化還原劑.探討了在不同溶劑中制備的還原樹脂的還原能力;應用於還原羰基化合物時有良好的產率( 51 % ?Lab6, as one kind of better material, is so perfect that it is important to research its chemical etching in the arts and crafts to be used in the preparation of emitting cathode, we simply state the chemical etching technical research in material of lab6 and have gainded graphics surface of lab6
而對六硼化鑭的化學腐蝕在以其為陰極的陰極發射體制備工藝中起著至關重要的作用,本文簡述了對材料的化學腐蝕工藝的初步研究,並得到了圖形化的六硼化鑭表面。Theoretical calculation of interaction between hmx and b - containing compound
與含硼化合物相互作用的理論計算4. the machining mechanism was investigated. it is comprehensive outcome of melting, gasification, oxidation and surface graphitization
研究了電火花加工摻硼金剛石膜的去除機理,它是熔化、汽化、氧化、表面石墨化等綜合作用的結果。This is not good news if the goal is to use mgb2 in magnets, which are meant to produce a strong field
如果我們打算用硼化鎂來製作可以產生強磁場的磁鐵,這可不是一件好事。Chapter 15 micronutrients and micronutrient fertilizers. boron, copper, mo, mn and their physiological roles and deficiency symptoms. their forms and their availability in soil. common iron fertilizers and effective usage
第十五章微量元素肥料主要講授微量元素硼、銅、鉬和錳等的生理功能和營養作用,缺素癥狀;土壤中4種微量營養元素的形態、轉化及其有效性;微肥的合理施用。Having very high hardness and excellent wear resistance, the abrasive materials diamond and cubic boron nitride have many applications in the processing of hard brittle materials for instance sintered - carbide tooling, patterns, pottery, glass, stone and semiconductors as well as many others. these abrasives are long lasting at extremely high speeds and have a significant cost - saving impact on the processing of ordinary steel materials
金剛石和立方氮化硼cbn磨料因其高硬度和優良的耐磨性能,不僅在硬質合金工具模具陶瓷玻璃石材半導體等硬脆性材料加工中有廣泛應用,而且作為半永久性及超高速磨具在一般鋼材的加工中發揮著日益突出的作用。The experimental evidences indicated that three deposition parameters, i. e., energy density of laser, rf plasma power and substrate negative bias played key roles in the growth of the c - bn films at room temperature. on this basis, the explanation of formation process and mechanism of c - bn film was given
通過分析各個沉積參數在薄膜生長中的作用,證明三個沉積參數:激光能量密度、射頻功率和基底負偏壓是室溫下生長立方氮化硼薄膜的關鍵因素,並在此基礎上初步解釋了立方氮化硼薄膜的形成過程及機理。分享友人