粉體學 的英文怎麼說
中文拼音 [fěntǐxué]
粉體學
英文
micromeritics-
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Composition of chemie douce and characterization of iron - doped nano - zno
粉體的軟化學法合成及其表徵Hydrochemical preparation techniques are the important methods to make ultrafine powder of a - alios with its intrinsical advantage
濕化學法以其固有的優點成為了制備納米氧化鋁粉體的理想方法。The weight gain of powders could be slightly increased with the increasing ph value, formaldehyde dosage and powder loadage, but the most utilization ratio of silver was only 35. 2 percent. the composite powders with the silver content between 13 % ~ 70 % were produced
盡管提高ph值、甲醛量及粉體的裝載量能在一定程度上增加化學鍍后粉體增重即銀的析出量，但遠低於理論析出值，銀的最大利用率僅為35 . 2 。The preparation of nanometer tio2 power, nanometer tio2 pellicle and nanometer tio2 block are introduced in the paper
摘要介紹了納米二氧化鈦粉體、薄膜和塊材的制備技術，其中對化學法作了較為全面的介紹。The technique of cement power - sprayed piles is one of improving soft - soil roadbed technology presently. combining with the construction and field tests of nanjing - qidong railway, some research of using cement power - sprayed piles to improve soft - soil roadbed was conducted and the research includes several aspects below : 1. the authour first introduces the formation. distribution, physical mechancial behaviour and engineering characteristic of soft soil, and clarifies the necessity of improving soft - soil roadbed
本文結合寧啟鐵路工程的水泥粉體噴攪樁（簡稱粉噴樁）復合地基的現場施工及試驗，對粉噴樁加固軟土路基作了研究，具體研究內容包括以下幾方面： 1作者首先介紹了軟土的成因和分佈，軟土的物理力學以及工程性質，闡明了軟土加固處理的必要性及目前軟土路基加固處理的方法。The ag - coated composite powder is a kind of addition agent, which is of great value in the application in the fields of conducting resin, wave - absorbing materials and optical apparatus. the importance of the composites could be attributed to the good associativity between ag and the powder and the equably coating of silver on the substrate
包銀復合粉體作為一種添加劑在導電漿料、吸波材料及光學器件等領域具備很高的應用價值，銀與粉體具備很好的結合性並且能均勻包覆在基體表面達到上述應用要求的一個關鍵。For sites with processes such as grinding, loading unloading, mixing, stirring, particle conveyance, dry oven, dissolve tank, pharmaceutical, chemical, cement, lime, wood, powder painting
用於研磨、裝卸、混合、攪拌、粉體輸送、乾燥爐、溶解爐、醫藥、化學、水泥、石灰、木器、粉體塗裝等作業場所。In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size
本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。Preparation of ultrafine iron oxide powder by colloidal chemical method
膠體化學法制備氧化鐵超微粉體Ultrafine a - ahoa powder with average crystalline size of 27nm and spherical secondary partical shape of 40nm has been prepared by the method of adding dispersant before reaction. after discussing the agglomeration mechanism, the paper studies the way to eliminate the hard agglomeration. it thinks that main reasons to lead to agglomeration are larger specific surface area and high reactivity of nanopowder
認為導致團聚的主要原因是：納米粉體顆粒的表面有許多斷鍵，相互之間或與其它物質之間容易產生毛細管力、氫鍵、化學鍵等多種作用力，在採取措施消除團聚的過程中必須全方位考慮，實現全程式控制制。Research and development of mechanochemistry in non - metallic mineral powder preparation
非金屬礦物粉體機械力化學研究進展The weight gain greatly increased and approached the theoretical value by the addition of naoh that increased the ph value of solution. the composite powders with compact and continuous silver coating layer were produced
微米玻璃微珠的化學鍍銀，添加naoh提升鍍液的ph值，粉體增重大大提升，銀的最大析出量接近於理論的析出值。In this paper, concentrated sulfuric acid and titanium dioxide are used to prepare the tios04 solution that test later required under long time heat. the influences of reaction time and reaction temperature to yield of tioso4 are discussed. in the experiment of preparing tio2 powder, reaction temperature, ph values, material ratio, operation way, velocity of feed, calcining heat and time are researched by the principle of nucleation and growth in thermodynamics and kinetics
在制備tio _ 2粉體實驗中，根據成核生長的熱力學和動力學原理，深入分析了沉澱反應時環境的溫度、 ph值、反應物配比、操作方式、加料速度等因素對ti （ oh ） _ 4粒度的影響，以及焙燒溫度和保溫時間等因素對制得的納米tio _ 2粉體性能的影響，得出了制備銳鈦型納米tio _ 2粉體的優化工藝條件。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。The university and the institute guarantee man ting fang access to the most advanced knowledge and support the technologies of powdery production
滿庭芳公司的粉體生產技術和產品由大學和研究所作支持，這保證了滿庭芳公司獲得最先進的知識。The effect of amorphous hydrated ruo _ 2 power production is discussed here, including : selection and ratio of solvent, selection and concentration of precipitator, terminal ph of titration and anneal temperature and time of colloid. research indicated that terminal ph and anneal temperature are the most important influence factors on physical and electrochemical properties of amorphous hydrated ruo _ 2 power
討論了超細氧化釕粉體的制備影響因素，包括:溶劑選擇和配比、沉澱劑選擇和濃度、滴定終點ph值以及焙燒溫度和時間對氧化釕粉體粒度分佈及電化學的影響，研究表明:沉澱終點ph值以及膠體焙燒溫度對粉體物理和電化學性能影響較大。The influence of preparing conditions on aluminum titanate composing was inquired. by analyzing element content of alumina and titania source, arranging a stoichiometric dosage, and keeping the chemical homogeneity from sol to mixed ti - al oxide precursor, a high activity powder was prepared. after calcining the precursor powder at 1250 for 2h, aluminum titanate phase is formed
本試驗通過準確測定起始物的ti 、 al含量，嚴格化學配比，採取適當措施將微尺度上的組成均勻性從溶膠一直保持到混合鋁鈦氧化物前驅體的生成，使該粉體具有高活性，將其在1250煅燒2h ，已合成出以鈦酸鋁為主晶相的產物，比文獻報道的鈦酸鋁相的最低生成溫度降低了50 。The na2fepo4f cathode materials for sodium ion battery were prepared by solid state reaction and the influence of synthesizing temperature and morphology on the electrochemical performance of na2fepo4f powders in sodium ion batteries were systematically studied. the results indicate that na2fepo4f synthesized at 750 exhibited good electrochemical performance, whose first specific discharge capacity is 60mah / g, after 20 times cycling, the average specific discharge capacity is 51. 1mah / g
首先採用固相法制備了氟磷酸亞鐵鈉粉體，研究了不同煅燒溫度對合成材料顯微結構和電化學性能的影響，結果表明750下合成材料體現出較好的電化學性能，首次放電容量為60mah / g ，循環20次后，容量下降為51 . 1mah / g 。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。分享友人