precipitation method 中文意思是什麼

precipitation method 解釋
沈澱法
  • precipitation : n. 1. 猛然摔下,落下。2. 猛沖;急躁,輕率,魯莽。3. 【化學】沉澱(作用);降雨(量);(雨、雪等的)降落。
  • method : n 1 方法,方式;順序。2 (思想、言談上的)條理,規律,秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Preparation of ultra - fine dibasic lead phosphite powder by precipitation method

    化學沉澱法制備超細二鹽基亞磷酸鉛粉體
  2. In this dissertation, the hydrosol of moo3 was prepared by precipitation method. the effect factors on hydrosol were discussed systematically. moo3 organosol was obtained by using ctab to modify the nanoparticles in moo3, hydrosol and n - pentanol to extract moo3 nanoparticles modified by ctab

    採用表面活性劑ctab對moo _ 3水溶膠中的納米粒子進行表面修飾,通過正戊醇萃取制備了moo _ 3納米有機溶膠,對制備有機溶膠的條件進行了系統地研究。
  3. In this dissertation, the hydrosol of cuo, agcl and agi were prepared by precipitation method, while cu2o by oxidation - reduction. the effect factors on hydrosol were discussed and analysed. agcl, agl and cuo organosol were obtained by using oleic acid to extract and modify the nanoparticles in hydrosols

    用油酸萃取並包覆了水溶膠中的氯化銀、碘化銀和氧化銅納米粒子,制備了氯化銀、碘化銀、氧化銅及氯化銀與二價銅共存有機溶膠,並對制備有機溶膠的條件進行了系統的研究。
  4. The relation in process, morphology and properties of material was studied. 1. in - situ precipitation method was developed to prepare chitosan rod by using chitosan membrane as template and naoh as precipitant

    本論文提出了用原位沉積法制備殼聚糖三維醫用材料,並對材料的成型工藝、聚集態結構及其與材料性能之間的關系作了初步的研究。
  5. Proceed from the present situation of nanometer tio2 powder industry in our country, confront more problems in preparation of nanometer tio2. on the base of analyzing advantages and disadvantages of existing every methods, neutralization precipitation method is adopted, using self - prepare tioso4 solution as raw material, soda as precipitant to precipitate titanous hydroxide precipitation, then obtained anatase nanometer titanium dioxide after heat treatment

    從我國發展納米tio _ 2粉體產業的現狀出發,針對納米tio _ 2制備中現存的問題,我們在綜合分析對比了現有各種方法優缺點的基礎上,採用中和沉澱法,以自制的tioso _ 4為原料,碳酸鈉作沉澱劑沉澱出ti ( oh ) _ 4沉澱,經熱處理得到銳鈦型納米tio _ 2粉體。
  6. Fe3o4 nano - particles, which can be dispersed in nano scale, were prepared by means of chemical co - precipitation method. such influencing factors as the type of precipitant, the feeding mode, the surfactants, the reaction temperature, the curing temperature were surveyed. some properties such as crystal structure, particle size, magnetic properties and iron content were characterized

    深入探討了沉澱劑的種類、加入方式、表面活性劑、反應溫度、熟化溫度等各種因素對產物的粒徑及磁性能的影響,對fe _ 3o _ 4納米粒子進行了晶體結構、粒徑、磁性能、鐵含量等性能的表徵。
  7. Magnetic liquid made in chemical co - precipitation method

    採用膠溶法制備磁性液體
  8. Preparation of hydroxyapatite powder for electrophoretic deposition by chemical precipitation method

    用於電泳沉積塗層的羥基磷灰石粉體沉澱法制備
  9. In this article the chelating precipitation method and the converting precipitation method were chosed to synthesis zno nanoparticles on the basis of the theory of synthesis of nanoparticles by precipitation. uniform and dispersed zno nanoparticles were prepared by the two methods because zn2 + of conformation crystal was flee slowly and the supersaturation was well controlled. the problem which zno nanoparticles are wide size and agglomerative was solved

    本文根據均相沉澱法合成納米粒子的原理,採用絡合沉澱法和沉澱轉化法合成納米氧化鋅。這兩種方法利用溶液中的構晶陽離子zn ~ ( 2 + ) ,緩慢地釋放出來,有效地控制了溶液中的過飽和度,可以得到粒徑均勻、分散的納米氧化鋅,解決現有制備工藝中納米氧化鋅粒徑分佈寬、易團聚的問題。
  10. Effects of lithium chloride on pan pulp prepared by precipitation method

    氯化鋰對沉析法成形腈綸漿粕的影響
  11. Fabrication of yag powder and translucent ceramics by co 2 co - precipitation method

    尿素共沉澱法制備釔鋁石榴石粉體及透明陶瓷
  12. Spherical vaterite and calcite with various morphologies were produced in the presence of 4 - bapta by simply constant precipitation method

    通過簡單的直接沉澱合成了球狀的球霰石和多種形態的方解石。
  13. Yttrium aluminum garnet ( y3al5o12, yag ) is not only a very important laser material, but also a high - temperature structural material and a fluorescence material. in this paper, the discussions are mainly focused on the synthesis of yag powders by co - precipitation method, self - propagating high - temperature synthesis and mixed method, powder ' s property, etc. in the co - precipitation method, the precursor was produced by adding a mixed a1 ( no3 ) 3 and y ( no3 ) 3 solution to nh4hco3 solution. yag can be obtained by heating the precursor at looo ' c for 5 hours without the formation of yam and yap transition phase

    釔鋁石榴石( y _ 3al _ 5o _ 12 ,簡稱yag )是一種重要的激光基質材料,同時它還作為高溫材料和熒光材料得到了廣泛的應用,本文主要討論了化學共沉法、燃燒法制備yag的超微粉的工藝,並對yag超微粉的性能及物相進行了分析;採用固相合成法制備了ca , ca : yag系列陶瓷,並對其結構和性能進行了討論。
  14. In this paper, co3o4 nano - particles were prepared by homogeneous precipitation method, technical conditions and kinetics were studied, the main contents and results are as follows : co ( no3 ) 2 6h2o was used as raw materials, and co ( nh2 ) 2 was used as precipitator, co3o4 nano - particles were prepared by homogeneous precipitation. the influences of concentration, molar ratio of reactants, reaction temperature and time, dryness temperature and time, and calcining temperature and time on particle size were investigated

    本文採用均勻沉澱法制備納米co _ 3o _ 4粉體材料,研究了制備工藝條件、沉澱反應和前驅體熱分解過程的動力學,主要研究內容及結果如下:以硝酸鈷為原料,尿素為沉澱劑,採用均勻沉澱法制備納米co _ 3o _ 4 ,考察了硝酸鈷濃度、反應物摩爾比、反應溫度和時間、乾燥溫度和時間、煅燒溫度和時間等條件對產物粒徑的影響。
  15. Metoprolol / cyclodextrin inclusion compound was prepared by the co - precipitation method and its structure was examined by dsc and uv spectra. the formation of the inclusion compound was proved

    摘要通過共沉澱法合成了美多心安-環糊精包合物,並使用差示掃描量熱分析、紫外光譜等方法加以鑒定,證明了美多心安可以和-環糊精形成包合物。
  16. This paper has reviewed the resources of ceo2 in our country, the markets and the condition of application. the advantages and drawbacks of the important preparation methods were reviewed. it puts emphasis on the reaction mechanism of precipitation method to nanoparticals and analyzes redox potential between ce3 + and ce4 +, puts forward a new technics named " a two - stage precipitation process " to succeed in obtaining nanocrystalline powers of cerium oxide

    本文簡要介紹了我國ceo _ 2的資源和市場以及國內外納米ceo _ 2的應用現狀:分析對比了納米ceo _ 2制備研究現狀;重點討論了沉澱法制備納米粉體的理論基礎:結合鈰( )離子、鈰( )離子的氧化?還原電位分析,提出以兩步沉澱法來制備納米二氧化鈰。
  17. Nano - zno with diameters of 8 ~ 130nm were prepared from zinc nitrate and urea by homogeneous precipitation method

    以硝酸鋅和尿素為主要原料,用均勻沉澱法制備了幾種不同粒徑范圍的納米級氧化鋅。
  18. In this work, layered lini1 - xalxo2 ( 0 < x 1 / 2 ) solid solution materials were successfully synthesized by current co - precipitation method in the air, and their preparation and properties were deeply and systematically explored. influences of different factors on the structure and properities of samples were studied, including li resources, different performs, li / m ( oh ) 2 molar ratio, calcining heat condition, the best synthesis technics were concluded : sintered for 16h at 700 from li source ( lithium nitrate ) : m ( oh ) 2 = 1. 05 : 1, ultrasonic vibration for dispersing and catalysing are best. lini0. 8al0. 2o2 exhibited a discharge capacity of 130. 7 mah ? g - 1 in the voltage range of 2. 8 ~ 4. 40v and at a specific current of 0. 2 c. a new co - precipitation method was proposed, it included ultrasonic for dispersing and catalysing, by dropping lioh to the aqueous solution of metal nitrates, hydroxides of metals were precipitated and the resulting solution was evaporated as received

    採用傳統共沉澱工藝在空氣氣氛中成功地合成出了二元lini1 - xalxo2 ( 0 < x 1 / 2 )層狀固溶體系列,綜合考察了不同鋰源、預處理方式、鋰的配比量、焙燒溫度等條件對合成產物的結構和性能的影響,確定出了最佳合成工藝:以硝酸鋰為鋰源,超聲波作為分散動力源,鋰源與鎳鋁金屬鹽摩爾比為1 . 05 : 1 , 700下焙燒16h的lini0 . 8al0 . 2o2樣品電化學性能最佳,在2 . 8 ~ 4 . 40v之間, 0 . 2c的倍率放電可逆容量達130 . 7mah ? g - 1 。
  19. The main contents of this dissertation are summarized as follows. ( l ) by investigating and preparing the ceo2 nanoparticles with various precipitators we choosed the cerium ( iii ) nitrate, hydrogen peroxide and ammonia as the materials to prepared the nanoparticles by a two - stage precipitation method the process differents from the general precipitation process

    試驗的主要研究內容: ( 1 )通過不同沉澱劑的制備研究,選擇以硝酸鈰、雙氧水和氨水為基本原料,經過鈰( )離子的氧化和鈰( )離子的沉澱兩個主要過程制備納米二氧化鈰。
  20. Based on the theory of crystal growth, we realized effective control on the crystallizing process of nickel hydroxide by coordinate precipitation method

    本文在晶體生長理論的基礎上,採用配位沉澱法實現了對ni ( oh ) _ 2結晶過程的有效控制。
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