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kaikao木虫 (小有名气)
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[交流]
翻译一段粉末制备方面的文字，中译英
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| 氧化锆粉末中所含的结构水和吸附水是控制团聚形成的关键，减少氯离子的含量也是减少团聚最主要的途径之一, Cl- 的存在不但增加了洗涤中的困难，也对后续粉末的加工和陶瓷的性能产生影响，如何去除共沉淀过程中Cl-的含量成为避免硬团聚体生成和减少粉末生产难度的重要研究方向，双氧水的加入的目的一方面是能替代前驱体中的部分结构水和吸附水，另外一方面由于双氧水在碱性条件下会发生分解，释放出氧气，在共沉淀过程中产生膨化作用，使反应过程在膨化作用下完成，使粉末相互间距拉大不易团聚，使粉末拥有较大的比表面, 双氧水的加入改变了前驱体的结构，减少了吸附水含量，使大部分吸附水在低温脱出，但对粉末最终的晶体结构不会产生影响。 |
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kaikao(金币+1,VIP+0):需要专业的翻译，google翻译的结果就不需要求助了！ 9-16 12:35
kaikao(金币+1,VIP+0):需要专业的翻译，google翻译的结果就不需要求助了！ 9-16 12:35
| Zirconia powder contained in the structure of water and absorbed water to form unity the key to control and reduce the content of chloride ion is also one of the ways to reduce the most important family reunion, Cl-existence not only increased the difficulties of washing, but also the follow-up powder the performance of the processing and ceramic impact, how to remove the co-precipitation during the Cl-content as to avoid the hardware generation and reduction of powder aggregate production of the difficulty is an important research direction for the purpose of adding hydrogen peroxide to replace the one hand, the precursor of the part of the structure of water and absorbed water, on the other hand due to hydrogen peroxide under alkaline conditions will decompose, releasing oxygen, generated in the process in the co-precipitation puffing effect, the reaction process is completed under the action of puffing, so that powder is not easy to widen distance between each other reunion, so that powder has a larger surface area, by adding hydrogen peroxide to change the structure of the precursor, reducing the absorbed water content, so that most of the absorbed water at low temperatures, prolapse, but the crystal structure of the final powder will have an impact. |
2楼2009-09-14 14:38:04
