氮化氣氛 的英文怎麼說
中文拼音 [dànhuàqìfēn]
氮化氣氛
英文
nitriding atmosphere-
The theoretic cycle capacity of limno2 is 286 mah g - 1, which has attracted a great deal of people to research. aim at the impurity of limno2 which was synthesized by the predecessor and the phase change during the electrochemical process, we try several methods, including wet moist chemical method, liquid state method, solide state method and liquid dipping method. at the same time, we study the synthesis of limnc > 2 in defferent atmosphere, for example air, argon and nitrogen
Limno _ 2具有286mah ? g ~ ( - 1 )的理論容量,這種高容量材料深受廣大研究者的關注,針對前人合成出的還有少量雜相和在電化學循環過程中出現相變四川人學碩l :學位論文的問題,我們嘗試了幾種合成方法:濕化學法、液相法、固相法和溶液浸漬法,並在不同氣氛:空氣、氮氣和氫氣中進行limnoz的合成研究。The process of organic vehicle evacuation of aln green tape and ag conductor paste have been researched in the view of ltcc technology, and optimum condition of organic vehicle evacuation temperature and cofiring atmosphere have been determined
摘要從低溫共燒的工藝角度來研究氮化鋁坯片和銀漿的排膠,從而確立排膠的溫度及燒結氣氛的控制。Current researches, applications, preparation and structure of si3n4 are summarized in this paper. a new conclusion is drawn that silicon wafer can react with nitrogen at the temperature higher than 1100 and in super - pure nitrogen by direct - nitridation of silicon at the temperature from 800 to 1200. the prepared silicon nitride samples are tested by xps ( x - ray photoelectron spectroscopy ), sem ( scanning electron microscopy ), optical microscopy, xrd ( x - ray diffraction ) and edx ( energy dispersive x - ray analysis )
通過矽片在800到1200各個溫度和各種氮氣氣氛下的氮化處理的實驗結果,報道了不同與其他研究者的氮化條件,矽片在氮氣保護的熱處理中的氮化條件為:高於1100的溫度和高純氮的氣氛條件,同時對該氮化硅薄膜進行了金相顯微鏡、掃描電鏡( sem ) 、 x射線衍射儀( xrd ) 、 x射線光電子譜( xps ) 、 x射線能譜儀( edx )和抗氧化性等測試和分析。At same time macroscopical and microcosmic mathematical model of nitridation are investigated. in this paper the thermodynamics of direct - nitridation, effect of temperature and nitrogen ambience on nitridaton and self - diffusion are discussed in the theory of physical chemistry in detail
同時本文用物理化學的原理討論了矽片氮氣直接氮化的熱力學方程、氮化條件的理論根據和原子的自擴散,從理論上證明隨溫度升高氮化加劇,氣氛純度越高氮化越容易的結論。Effect of atmosphere on synthesis of titanium nitride in aluminothermic reduction process
反應氣氛對鋁熱還原氧化鈦合成氮化鈦的影響The pyrolysis mechan ism functions of the second stage of dvb / hpso and vpso / hpso are both parabola principle, and the rates of pyrolysis reactions in this stage are both controlled by one - dimensional diffusion
600時, ai可與先驅體裂解產生的含碳小分子氣體反應生成a14c3 , 800時ai可與裂解氣氛nz反應生成ain ,溫度升高, al的氮化反應不斷進行。The results indicate that it has an excellent surface. aln thin film was prepared from an aluminum target by dc and af reactive magnetron sputtering in nitrogen gas mixed with argon gas
氮化鋁薄膜樣品是利用高純鋁靶,在氮氣加氬氣氣氛下用直流和射頻反應磁控濺射法制備的。Additional annealing experiments in nitrogen atmosphere revealed that the heavily damaged region with hydrogen - induced defects appears to be the adsorption center for the outside oxygen to diffuse into the silicon during the high - temperature annealing process, and consequently, broaden the thickness of the box layer. this important finding may provide a possible solution to reduce the cost of the conventional simox - soi wafers while maintaining a desirable box thickness
獨特設計的氮氣氛退火及分步退火實驗證明了原注入樣品的缺陷層中氫及氫致缺陷的存在使得在退火過程中加速外界氣氛中的氧擴散進來,並成為強捕獲中心使擴散進來的氧滯留于缺陷層從而促使氧缺陷層中的氧沉澱生長,加速了高溫退火中的內部熱氧化過程,從而形成了比傳統相同劑量simoxsoi厚得多的氧化埋層。Abstract : this paper has deseribed the principles of preparation and technological process about nitrogen - based sintering atmosphere by ammonium cracked and burnt. the chemical effect in sintering furnace is discussed. the effects of it on the carbon content of the iron base structure materials were studied. the superior feature and technical & economic value in saving energy, in cutting down the consumption of raw materials, in waking use of natural resources, in environmental protection, in safety, etc., have been brought to light
文摘:敘述了氨分解燃燒氮基燒結氣氛的制備原理與流程設計;探討了它在燒結爐中的化學效應;研究了它對鐵基結構材料碳含量與性能的影響;揭示了它用於粉末冶金鐵基結構件燒結時,在節能、降耗、資源利用、環保、安全等方面的優勢特徵與技術經濟價值。The law on component change of carbocoal from different temperature pyrolysis of yanzhou bituminous coal in ordinary pressure fluidized bed in nitrogen atmosphere is analyzed, especial change law of sulfur, and activation energy of pyrolysis carbocoal in different temperature is analyzed in thermogravimetric analyzer, it is found that activation decreases with pyrolysis temperature increasing
摘要利用兗州煙煤在不同溫度下常壓流化床氮氣氣氛的熱解半焦作為樣品,分析了半焦成分變化的規律,特別是硫的變化規律,並利用熱重分析儀分析了不同溫度下熱解半焦的活化能,研究表明隨著熱解溫度的升高,活化能逐漸降低。The thermal decompostion kinetics of up / montmorillonite nanocomposites under nitrogen was studied. the reaction order and apparent activation energy of nanocomposites were obtained by freeman - carroll method. the results indicate the thermal stability of nanocomposites is higher than pure up ' s
研究了氮氣氣氛下不飽和聚酯蒙脫土納米復合材料的熱分解動力學,用freeman - carroll法確定了復合材料的反應級數n和表觀反應活化能e 。The first peak was analyzed by the doyle equation, it found that the apparent decomposition reaction order was 1. 0 both of in n2 and in air. the decomposition activation energy was lower in n2 than of in air, which was 147. 405 kj - mol - 1 and 192. 656kj
採用doyle方程對第一個峰進行數學分析,發現其熱分解過程滿足一級反應方程式,在氮氣氣氛中的分解活化能小於在空氣中的活化能,分別為147 . 405kjTwo types of internal oxidation techniques were adopted, namely internal oxidation under nitrogen protect and new type vacuum internal oxidation in the present study. both techniques can achieve the oxygen partial pressure that the internal oxidation reaction of cu - al alloy can take place
本文採用的兩種內氧化工藝,即氮氣保護下的內氧化和新型真空內氧化工藝,都可以滿足cu - al合金發生內氧化的氣氛條件。分享友人