樹枝狀粉粒 的英文怎麼說
中文拼音 [shùzhīzhuàngfěnlì]
樹枝狀粉粒
英文
dendritic particle- 樹 : Ⅰ名詞1 (木本植物的通稱) tree 2 (姓氏) a surname Ⅱ動詞1 (種植; 栽培) plant; cultivate 2 (樹...
- 枝 : Ⅰ名詞1. (枝子) branch; twig 2. (姓氏) a surname Ⅱ量詞1. (用於帶枝子的花朵) 2. (用於桿狀物)
- 狀 : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
- 粉 : Ⅰ名詞1 (粉末) powder 2 (用澱粉製成的粉條或粉絲) noodles or vermicelli made from bean potato o...
- 粒 : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
- 樹枝 : branch; twig; bough; ramet; prong
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Ajs20, the precursor contained 20wt % alunina sol seeding, was calcined at around 1000 to get free - aggregation nano - sized a - alaos powders with a median particle size of 70nm. and, calcining ajs2, the precursor contained 2wt % alumina sol seeding, at hoo ' c, we get a - alaos nano - sized powders with a particle size of loonm and good dispersion by tem. this paper also gives the proper mechanisms of these factors " influences on the transformation to alpha phase
研究結果顯示,含有20wt膠體籽晶的前驅體ajs20在1000左右煅燒就可獲得平均粒徑為70nm 、無團聚的納米- al _ 2o _ 3粉體;而含有2wt膠體籽晶的前驅體ajs2在1100即可獲得粒徑在100nm左右、幾乎單顆粒分散、有少量「樹枝狀」微結構的納米- al _ 2o _ 3粉體。The results show that the a - phase - transformation of pure aach can be completed by heating at 1200 ? for two hours. but under this temperature, the alumina particles will be sintered together, which can lead to the formation of bough - like structures. and these bough - like structure will make the powder difficult to be dispersed
接著對碳酸鋁銨進行了焙燒實驗,研究了其在升溫過程中的相變行為,結果表明:純aach在1200保溫1 . 5h的情況下才能100轉變為氧化鋁,而在這樣高的溫度下,粒子之間會形成燒結頸,從而使粉體產物在形貌上出現所謂「樹枝狀」結構,給粉體使用時的分散帶來了困難。
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