prepared sizes 中文意思是什麼
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The corrosion behavior of nanocrystalline ( nc ) copper bulks with various grain sizes prepared from igc ( inert gas condemsation ) and vacuum annealing in comparison with conventional microcrystalline ( mc ) copper ( as - rolled and electrolytic ) in acid copper sulphate solution and neutral solution containing chlorides under free corrosion conditions and anodic polarizations has been studied using potentiodynamic polarization, potentiometric analysis, cyclic voltammetry and electrochemical impedance spectroscopy. x - ray diffraction was used to estimate the grain size of the annealed nc copper. field emission gun scanning electron microscopy and x - ray energy - dispersive spectroscopy was used to characterize the surface morphology and analyze the surface composition after the polarization and potentiometric test of both nc and mc copper
本文研究了用igc （惰性氣體蒸發凝聚原位溫壓法）制備並真空退火到不同晶粒尺寸的納米晶銅和微米晶銅（冷軋紫銅、電解銅）在酸性硫酸銅溶液和中性含氯溶液中，在自腐蝕狀態和陽極極化狀態下的腐蝕性能。使用了動電勢極化、電位測定、循環伏安法（ cv ）和電化學阻抗譜（ eis ）等方法。 x -射線衍射（ xrd ）的方法用來估算納米晶銅晶粒尺寸。 -
Gold colloids with different particle sizes were synthesized using hydrogen tetrachloroaurate as the precursor and " na3 - citrate / nabh4 as the reducing agents. two - dimensional arrangements of gold particles and layered composites of gold with polymer pdda were prepared
以氯金酸為前驅體，以na _ 3 - citrate 、 nabh _ 4為還原劑制備了不同粒徑的金納米粒子，組裝了金納米粒子的單層或亞單層膜及其與聚合物pdda的多層復合膜。 -
The tensile and compression experiment on bulk nanocrystalline ag prepared by igc method was carried on mt810 with different grain sizes and zwick 10tn2s machine at different strain rates under normal temperature respectively. the stain rate sensitivity m was found to be 0. 025, which was extremely lower than the ordinary values. also the work hardening exponent is very low
本文從用惰性氣體蒸發冷凝和真空原位壓結法（ igc ）制備得到的直徑80mm ，厚度7 . 6mm的大尺寸納米晶金屬ag樣品上切割得到符合力學實驗要求的拉伸和壓縮試樣，在mts810和zwick精密力學測試機上分別精確測定了拉伸和壓縮應力?應變曲線與晶粒尺寸和應變速率的關系。 -
One is about of temperature - dependence of luminescence of eu3 + and tb3 + doped in oxide glass and nanocrystalline y2o3 ; the other is about of light - induced luminescent and structural change in nanocrystalline y2o3 : tb. the creative works are as follows : ( 1 ) euand tb doped nanocrystalline y2o3 with different sizes were prepared by combustion synthesis. dependences of particle size, crystallinity and fluorescence characteristic on ratio of gly / y ( no3 ) 3 and annealing temperature were studied
本文以變溫與光輻照為實驗方法研究了eu與tb摻雜y _ 2o _ 3納米晶及氧化物玻璃中發光性質隨溫度的變化關系和光誘導y _ 2o _ 3 ： tb納米晶發光性質及結構的改變過程，得到如下創新性研究成果： （ 1 ）用燃燒法制備了稀土摻雜y _ 2o _ 3納米晶，研究了甘氨酸與硝酸釔的反應比例（ g n ） 、退火條件對稀土摻雜y _ 2o _ 3納米晶顆粒尺寸、結晶狀況及發光特性的影響。 -
The results of transmission electron microscopy ( tem ) showed that the grain of strontium titanate powder prepared was spherical and the grain sizes distribution were homogeneous
通過tem分析可以看出，制備的鈦酸鍶粉體材料的顆粒為球形，並且顆粒大小均勻。 -
The results of dsc - tg and xrd ( x - ray diffracton ) showed that prepared gels began to transform into the strontium titanates with perobskite - type cubic phase at 600 ? by a heat treatment and the reaction was completed proximately at 800 ?. the grain sizes were smaller than 51. 78nm using scherrer ' s formula
Dsc - tg和x射線衍射分析的結果表明，在600左右時，開始有立方鈣鈦礦型srtio _ 3生成；反應在800左右基本完成，由scherrer公式計算，粉體的粒徑小於51 . 78nm 。 -
Polymeric particles have been used widely in many different fields, since they can be prepared easily and have controlled particles " sizes and good surface characters
另一方面，聚合物微球具有簡便的制備工藝、可控的粒徑大小以及優異的表面性質等特徵，因此在眾多領域得到了廣泛的應用。
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