氧鈾比 的英文怎麼說
中文拼音 [yǎngyóubǐ]
氧鈾比
英文
oxygen/uranium-
O u standard test method for determination of uranium, oxygen to uranium, and oxygen to metal in sintered uranium dioxide and gadolinia - uranium dioxide pellets by atmospheric equilibration
用大氣均衡法測定燒結的二氧化鈾和氧化釓-二氧化鈾顆粒中鈾氧鈾比The deep oxidation and groundwater leaching solubilizes much of the loosely bound uranium.
深部氧化和地下水淋蝕使大部分固定得比較鬆散的鈾溶解。Determination of the oxygen uranium ratio in uranium dioxide nuclear fuels
二氧化鈾核燃料中氧鈾比例的測定Standard test method for the determination of uranium by ignition and the oxygen to uranium atomic ratio of nuclear grade uranium dioxide powders and pellets
用點火和核級二氧化鈾粉末和顆粒的氧鈾原子比測定鈾的標準試驗方法Determination of density and open and closed porosity of uranium dioxide pellets ; boiling water and immersion method
二氧化鈾小丸的開口孔隙率和隱孔隙率所佔比例及密度Determination of specific surface area of uranium dioxide powder by multipoint bet method
二氧化鈾粉末比表面積測定多點bet法There are distinct changes about shifts or intensity in bulk plasmon, surface plasmon, and interband electron transitions losses as a result of oxidation of specimens, and adsorption and oxidation processes can be studied through these changes. at room temperature, the formation of oxide layers on uranium and uranium - niobium alloys were found to occur rapidly upon exposure to oxygen, and the resultant oxide in each case was near - stoichiometric uo2. due to formation of niobium oxide in uranium - niobium alloys, the diffusion of o ~ ( - ) ( o ~ ( 2 - ) ) and u ~ ( 4 + ) in the interface region was prevented, and the corrosion resistance of uranium - niobium alloys to oxygen is greatly enhanced by alloying with niobium
研究結果表明：清潔表面鈮和鈾的體等離子體振蕩所造成的電子能量損失的實驗值與理論計算值較為符合；隨著氧化程度的加劇，表面等離子體（ sp ） 、體等離子體（ bp ）以及價帶電子躍遷所造成電子能量損失的譜峰發生了明顯的連續偏移或強度的變化，這些變化可以用來分析鈾及鈾鈮合金的初始氧化過程；室溫下，鈾及鈾鈮合金很容易與氧作用，最終結果，鈾僅氧化為二氧化鈾，另外，在鈾鈮合金氧化過程中，因為有鈮的氧化物存在，不利於氧和鈾在界面擴散，增強了鈾鈮合金抗氧化性能； eels能獲得樣品表面的信息比aes更為表面，更為靈敏，但由於eels的譜線過于集中，主要在幾十ev以內，也有不容易區別和解譜的不足。Determination of oxygen to uranium atomic ratic in uranium dioxide powder and pellets by thermogravimetric method
二氧化鈾粉末和芯塊的氧鈾原子比測定熱重法When surface temperatures of uranium and uranium - niobium alloys increase higher than 573k, heating was observed to deplete surface oxygen by accelerating its transport into the bulk and separate carbon out to their surface. so there were uranium carbide formed on the surface and thicker layer of uo _ ( 2 ) formed in the bulk. with surface temperature increasing, the o / u ratio dropped sharply as the surface oxygen diffused into the bulk
當溫度高於573k時，溫度增強了鈾及其合金表面上的氧的解吸和向體內擴散，以及促使體內的碳向表面上偏析，導致在鈾及其合金表面上形成了鈾碳化合物，並在體內出現富二氧化鈾層，隨著溫度的升高，表面上的氧和鈾原子的比值降低，鈾碳化合物含量增加，體內的富二氧化鈾層加厚。分享友人