粒化制粉法 的英文怎麼說
中文拼音 [lìhuàzhìfěnfǎ]
粒化制粉法
英文
shotting- 粒 : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 粉 : Ⅰ名詞1 (粉末) powder 2 (用澱粉製成的粉條或粉絲) noodles or vermicelli made from bean potato o...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
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Fe - ni alloy fiber were first prepared in a mixed solution of ferrous and nickelous salts, using kbh4 as a reducing agent. conditions, such as quantity of naoh, concentration of salts, and species of surfactants, of preparation of fe - ni alloy were studied. the result show that fe - ni alloy were soft magnetic materials and they exhibited superparamagnetization at room temperature that have been widely used in industry
本文用液相還原法首次制備出纖維狀的fe - ni合金、球形的fe - co 、 co - ni合金、 fe - co - ni合金粉體材料,並對其性能進行了分析和測試,結果表明:這些合金粒徑小,比飽和磁化強度較大,矯頑力為零,呈現超順磁性,是非晶態的軟磁材料。Surface roughness of coatings affects the bioacitivity of materials, in order to change the roughness of coatings, the granularity of coating powders was changed firstly. nanometeral anatase titanium dioxide powders were prepared by hydrolysis of titanium - tetrabutoxide with ethanol in this paper. the main particle size is between 5nm and 10nm, while the size of ordinary titanium dioxide powders is about 100nm
為了改變塗層表面的粗糙度,實驗中從改變塗層粉末的粒度入手,以鈦酸丁酯為原料,通過醇鹽水解法制備了納米級銳鈦礦型tio _ 2超細粉,粒徑約為5 10nm ,而普通二氧化鈦粉體的粒徑多在100nm左右。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。Being fine, homogeneous and free of melting, the powder prepared by mechanical alloying has applied to develop scattering strengthen - material, magnetic material, high - temperature material, superconductivity material, amorphous, and non - equilibrium material, compound material etc. as a high - tech technology to prepare alloying powder, ma has become a more and more important method for preparing new materials
機械合金化法制備的粉末晶粒細小、成分均勻,且能避免熔化過程,已用於開發研製彌散強化材料、磁性材料、高溫材料、超導材料、非晶、準晶、納米晶等各種狀態的非平衡材料、復合材料、輕金屬高比強材料、儲氫材料、過飽和固溶體等。作為制備合金粉末的非平衡高新技術,越來越成為一種制備新材料的重要方法。This edta route has several remarkable advantages in comparison with other method. because of the greater ability of edta anions to chelate metal cations, and forming very stable and soluble complexes, all of the starting materials are mixed at the molecular or atoms level in a solution, it is easy to control the composition and a high degree of homogeneity is achievable
傳統的合成方法是高溫固相反應,由於灼燒溫度高、灼燒時間長,形成硬團聚體,產物粒徑較大,一般為m級,需進行球磨粉碎以減少其粒徑,很難制得均相、均一粒度分佈的氧化物粉體,在研磨過程中容易引入雜質且晶形破壞使得發光亮度減小。In this paper, we tried to get metal - coated composite powders with different particle sizes by electroless silver plating on different ceramic powders such as nano - al2o3, micro - cenospheres and submirco - sio2. the nano - al2o3 powder with average size about 10 to 20 nanometers was pretreated to produce catalytic activity before the electroless silver plating
本文利用化學鍍的方法在不同粒徑的陶瓷粉體(包括納米al _ 2o _ 3 、微米空心玻璃微珠及亞微米級的sio _ 2 )上包覆金屬銀,制備不同粒徑的金屬包覆型復合粉體。In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects
通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響,發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土,宜將特細山砂和機制砂進行合理復配,並選擇合適的外加劑和礦物摻合料,優化配合比設計,可生產c20 c40中低強度等級自密實高性能混凝土;研製開發出了具有高效減水、保塑、抗離析功能的外加劑,有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題;應用正交設計方法,對因素和水平進行合理選擇,確定了生產中低等級自密實混凝土的最優配合比;建立了中低強度等級自密實混凝土的工作性評價體系;提出了生產、施工及養護的質量控制技術方法。In order to solve the problem of conglomeration of the nanoparticle and make the nanoparticle disperse evenly in the coatings. in this way, we could succeed in improving the effect of modification. we originally put forward the in - situ sythesising nanoparticle method to modify coatings. through this method, we made use of the technology of the wet chemical method and added the precursor of nanoparticle during the preparation of coatings
在此基礎上,為解決納米粉體的團聚問題,使納米粒子在塗料中有效分散與附聚,以實現納米粒子改性的有效性,原創性地提出了原位生成納米粒子改性塗料制備工藝的新思路:利用濕化學方法制備納米材料的技術,在常規塗料制備的過程中加入所需引入納米粒子的先驅物,直接在顏填料微粒的表面原位合成相應的納米粒子。The feasibility of copper matrix reinforced by cr2o3 particles was discussed from the aspect of the demand of composite on reinforcer, interface and its formation. crcu alloy powders prepared by water atomization were turned into cr2o3 / cu compound powders, which were made into composites
本文從復合材料對顆粒增強相的要求、復合材料的界面以及復合材料的成型等角度分析了cr _ 2o _ 3顆粒作為彌散強化相增強銅基體的可行性,採用水霧化法制備crcu合金粉末,並通過預氧化的方法得到cr _ 2o _ 3 cu復合粉末,運用粉末冶金法制備cr _ 2o _ 3 cu復合材料。To obtain the ultra fine atc ceramic with fine, uniform grain and high mechanical properties and solve the problem of brittle of ceramic, the technique of electroless cobalt plating under low temperature and ultrasonic was used to get a cobalt deposition on nano / micro al2o3, tic ceramic. the nano / micro al2o3 - tic - co composite powder with different cobalt content was prepared by changing the load. the composite powder was then hot - pressed into a ultra fine composite ceramic
為了得到品粒細小、均勻,力學性能優異的co - al _ 2o _ 3 - tic ( atc )復合陶瓷,解決陶瓷的脆性問題,本文在化學鍍鈷制備高性能atc復合陶瓷的基礎上,採用超聲波化學鍍方法,以提高鈷在陶瓷粉末以及al _ 2o _ 3與tic陶瓷顆粒之間的分佈均勻性,以期進一步提高atc陶瓷的力學性能。To characterize the particle size of the srce03 products, some methods used to determine the crystalline grain size and crystal lattice distortion rate of nanostructured powder based on xrd data were studied. it was found that some methods had their shortage. to rationalize the calculation, a proper treating method was recommended
為了表徵所制備的納米srceo3粉體的粒度,本論文對利用粉晶x射線衍射技術表徵納米粒于的粒度和晶格畸變的方法進行了研究,發現已有的某些方法中存在的不合理性,針對表徵方法的合理化提出了自己的見解。The contrast experiment of chemistry reducing process and hydrothermal treatment were studied. the results showed that the crystallinity of copper powders prepared by hydrothermal method clearly increased, and the grain size distribution became narrow comparing with the copper powder prepared by reducing process
通過化學還原法與水熱法制備銅粉的初步對比試驗,證明水熱處理過的銅粉粒度分佈變窄,結晶度提高,從而具備了還原法所不能比擬的優良性能。This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4
本論文以量子結構自組裝為出發點,提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒子自組裝;提出有機聚合網路原位組裝zns基納米熒光粉方法,把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成,適于低成本,批量生產;根據當前zno的研究情況,我們首次合成了非晶zno ,研究了它的光學性質,確定了它的結構,並對其摻雜進行了初步的研究,非晶zno表現出強的深紫外發光特性,而可見發射非常弱,是一種有巨大潛在應用價值的深紫外發光材料;利用非晶zno的亞穩特性,對晶化過程中非晶zno納米晶zno三維受限量子結構特性,界面特性進行了深入的研究;利用固相熱分解一般受擴散控制特性,實現了尺寸可控的zno三維量子結構的自組裝;利用非晶zno的高度分散性,容易均勻成膜特性,實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。We also put forward the technique of in - situ dispersion to modify coatings. the key of the technique was to add the nanoparticle sol prepared by the wet chemical method into coatings instead of dropping the nanoparticle powder prepared by the technics of filtration and calcinations in the coatings
同時提出在位分散法納米粒子改性塗料的制備技術:直接在塗料中引入採用濕化學方法制備的納米粒子溶膠,而不是採用外加經過過濾和燒結等工藝制備的納米粉體。Contrarily, w - cu powder prepared by reducing the mechanically mixed wo3 - cuo oxides has a particle size ranging from 0. 1 to 1 m with irregular partic le shape and non - uniform distribution of w and cu composition
而機械混合氧化物共還原法制備的w - cu復合粉顆粒較粗大,其粒徑分佈范圍在0 . 1 1 m之間,顆粒形狀也並不規則。In addition, the effective combination technologies of ultrasonic, microwave, alternating current deposition, supercritical fluid drying with traditional liquid methods is the most promising one to prepare high purity, small size and well - proportioned dispersing nano - particles
而超聲技術、微波輻射技術、交流電沉積技術、超臨界流體乾燥技術、非水溶劑水熱技術等新技術與傳統液相法的有機結合,是制備高純度、小粒徑、均勻分散的金屬氧化物納米粉體的最有前途的方法。The gel, transformed form the aqueous solution of metal nitrate and citric, can be comburented completely in lower temperature
此法制備粉末顆粒形狀規則,大小均勻,無明顯團聚,並且易於工業化生產。The samples were characterized contrastively by sem, tem, saed, positron annihilate and the different mechanism for two methods were preliminarily discussed. the experimental results showed that nano - cuo prepared by sol - gel method was spherical, which was agglomerated badly and can aging easily. however, nano - cuo prepared by pressure - hydrothermal method has loose and thin - piece appearance structure
結果表明,溶膠-凝膠法制得的氧化銅粉末呈類球形,團聚嚴重,易老化;而壓力-熱液法制得的氧化銅具有疏鬆的、薄片狀的外觀結構,粒子厚度約為20nm ,分散性較好、抗老化能力強;壓力-熱液法制備的氧化銅比溶膠-凝膠法制備的氧化銅缺陷濃度小。The thermal shock resistance of the prepared material is explored too. processing parameters were comprehensively investigated to achieve better mechanical strength and microstructure, experimental results indicate that suitable amount of sintering aids can promote the development of sian siaona ) and increase the crystal size, while excessive sintering aids amount will exert a side effect ; biding phase increases obviously with si powder additive which greatly improve the strength of the composite
本論文著重探討了在利用該方法制備si _ 3n _ 4 ( si _ 2on _ 2 ) - sic復合材料過程中的燒結助劑引入量、 si粉加入量、 sic顆粒級配和氮化制度對復合材料基體相生成的影響及對復合材料強度的影響,同時也初步探討了si _ 3n _ 4 ( si _ 2on _ 2 ) - sic復合材料的抗熱震性能。But the composite must have enough pervious light gap between conducting particles, or the particle size is less than the wavelength of visible light. so preparation of indium, tin oxide ( in2o3 / sno2 ) nano powders by promising method of sol - gel in liquid and surface modification were studied. we hope to summarize general nano preparation, modification and characterization methods
所以本研究的目的是利用液相法中較有前途的溶膠-凝膠法制備氧化銦、氧化錫及其復合氧化物( in _ 2o _ 3 sno _ 2 )納米粉料,並對其進行表面修飾和綜合表徵,為大課題提供原材料並可望總結出普遍可行的納米粒子制備、修飾及表徵方法。分享友人