thermal activation energy 中文意思是什麼
thermal activation energy
解釋
熱激活能-
A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours
研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。 -
The reaction order and apparent activation energy of nanocomposites by emulsion and bulk methods are obviously increased. this also shows that the thermal stability of nanocomposites is much better than pure pmma, which is also confirmed by doyle method
Freeman - carroll差減微分法結果表明：本體法及乳液法復合材料的熱分解反應級數和表觀活化能均明顯高於純pmma ； doyle積分法佐證了這一點。 -
Study on the thermal decomposition mechanism and activation energy of complex monovaline - hexaquo - gadolinium
三氯化纈氨酸六水合釓配合物的熱分解機理與活化能研究 -
A unified theoretical model was given considering thermal activation, phonon - assisted absorption and nonradiative energy transfer processes. ( 6 ) the relationship between the fluorescence and the composition in niobate - silicate and niobate - phosphate glasses was studied
考慮熱激活、聲子輔助吸收過程與溫度猝滅建立了穩態動力學方程並對樣品熒光發射強度隨溫度的變化關系進行了量化解釋。 -
The process of in situ synthesis in salt activated by ma is discussed, and the separation of activation and reaction during ma is investigated. the ti - c mixtures with elevated system energy from mechanical activation occur due to thermal activation from in salt bath
在「機械激活鹽浴合成」工藝中，將高放熱體系在普通反應研磨工藝中所存在的孕育期與反應期分離，利用初始ti - c混粉在孕育期中所積累的儲存能和高溫熔鹽反應介質所提供的熱激活作用來促發粉體中的合成反應。 -
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 。
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