nonstoichiometric 中文意思是什麼
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As a comparison, ba1. 03ce0. 8gd0. 2o3 - was synthesized by sol - gel method. among these samples, nonstoichiometric samples were synthesized for the first time. the research work involved : the crystal phase of the sinters were determined by xrd ; ionic conduction under different experimental atmospheres was measured by gas concentration cells ; performances of hydrogen - air fuel cells with the sinters as electrolytes and porous pt as electrodes were measured
用粉末x射線衍射儀鑒定它們的結晶相；在（ 600 1000 ）范圍內，以燒結體作為電解質隔膜，多孔性pt黑為正、負電極， pt - rh合金網為集電極，分別組成氫濃差電池、氧濃差電池及氫?空氣燃料電池並測定了它們的性能，研究了不同氣氛下樣品的離子導電特性及影響燃料電池性能的因素。 -
Surface states and the topmost surface atoms of the batio3 thin films have been analyzed by x - ray photoelectron spectroscopy ( xps ) and angle - resolved x - ray photoelectron spectroscopy ( arxps ). the results show that the as - grown batio3 thin films have an enriched - bao nonstoichiometric surface layer which can be removed by ar + ion sputtering, and the atomic ratio of ba to ti decreases with increasing the depth of ar + ion sputtering
用x射線光電子能譜技術（ xps ）和角分辨x射線光電子能譜技術（ arxps ）研究了薄膜的表面化學態以及最頂層原子種類和分佈狀況，結果顯示在熱處理過程中薄膜表面形成一層富含bao的非計量鈦氧化物層，並且鋇-鈦原子濃度比隨著探測深度的增大而逐漸減小。 -
Influences of nonstoichiometric ratio on the gas - sensing properties of sno2 - x thin films
薄膜非化學計量比對氣敏性能的影響
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