| 24小時(shí)熱門版塊排行榜 |
| 2 | 1/1 | 返回列表 |
| 查看: 560 | 回復(fù): 1 | ||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | ||
jhq8064銅蟲(chóng) (初入文壇)
|
[求助]
無(wú)機(jī)非金屬類論文翻譯,求英語(yǔ)大神,金幣不夠可以再發(fā)。
|
|
|
超細(xì)氧化鋁(Al2O3)具有很高的化學(xué)穩(wěn)定性、熱穩(wěn)定性、高硬度及耐腐蝕性等一系列優(yōu)良特性,目前已得到廣泛應(yīng)用。因此,研究超細(xì)氧化鋁粉末的制備,選擇最佳的優(yōu)化方案,對(duì)制備出產(chǎn)率高,疏松性好,粒徑小且分布均勻的超細(xì)氧化鋁粉末有著重要意義。本研究采用沉淀法,以氯化鋁和各沉淀劑為原料制備超細(xì)氧化鋁粉體,通過(guò)研究各沉淀劑對(duì)氧化鋁粉末的影響,發(fā)現(xiàn)碳酸氫銨可以為最佳沉淀劑。對(duì)煅燒后樣品進(jìn)行XRD和激光粒度測(cè)定,檢測(cè)結(jié)果表明;采用沉淀法以氯化鋁和碳酸氫銨為原料制備得到超細(xì)氧化鋁粉末具有分散性較好、粒徑較小以及純度較高的優(yōu)點(diǎn)。該工藝技術(shù)具有流程簡(jiǎn)單,操作方便,生成成本低,易于實(shí)現(xiàn)工業(yè)生產(chǎn)。 里面的專有名詞要用知網(wǎng)翻譯助手里的有的,急用 ![]() ![]() ![]() ![]() ![]() ![]() |
至尊木蟲(chóng) (知名作家)
|
ultrafine Al2O3 powders are of high chemical stablility, thermal stablity, highhardness and good anti-corrosion properties and have been widely applied. optimized approach was approached to investigate the ultrafine Al2O3 powder. therefore, it is meaningful to prepare ultrafine Al2O3 powders of high yielding, good porosity,small size with good distributions. In our work, AlCl3 and other precipitants were used as raw materials to prepare ultrafine Al2O3 powde by precipitation method. effects of all precipitants on the quality of Al2O3 powders were investigated. it was fond that 碳酸氫銨 to be the best candidate of precipitate. XRD and laser particle size examinaztion were used on calcined samples. the results indicate that the ultrafine Al2O3 powders obtained by using AlCl3 and 碳酸氫銨 as raw materials were of good dipersity, small size and high purity. such processing are significant by saimple procedure, easy operation, low cost and easy realization of industrila productions. |
| 2 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 295材料工程專碩求調(diào)劑 +5 | 1428151015 2026-03-27 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 求調(diào)劑推薦 材料 304 +14 | 荷包蛋hyj 2026-03-26 | 14/700 |
|
|
[考研] 269專碩求調(diào)劑 +10 | 金恩貝 2026-03-21 | 10/500 |
|
|
[考研] 化學(xué)308分求調(diào)劑 +8 | 你好明天你好 2026-03-23 | 9/450 |
|
|
[材料工程] 一志愿C9材料與化工專業(yè)總分300求調(diào)劑 +7 | 曼111 2026-03-24 | 8/400 |
|
|
[考研] 085601 材料工程 313分 求調(diào)劑 +5 | Ong3 2026-03-27 | 5/250 |
|
|
[考研] 材料求調(diào)劑 +8 | @taotao 2026-03-21 | 8/400 |
|
|
[考研] 求調(diào)劑 +8 | Auroracx 2026-03-22 | 8/400 |
|
|
[考研] 297求調(diào)劑 +6 | 田洪有 2026-03-26 | 6/300 |
|
|
[考研] 281求調(diào)劑 +6 | Koxui 2026-03-24 | 7/350 |
|
|
[考研] 0856求調(diào)劑 +8 | zhn03 2026-03-25 | 9/450 |
|
|
[考研] 085600 材料與化工 329分求調(diào)劑 +9 | Mr. Z 2026-03-25 | 9/450 |
|
|
[考研] 299求調(diào)劑 +4 | 15188958825 2026-03-25 | 4/200 |
|
|
[考研] 考研一志愿蘇州大學(xué)初始315(英一)求調(diào)劑 +3 | sbdksD 2026-03-24 | 4/200 |
|
|
[考研] 0703化學(xué)調(diào)劑,求導(dǎo)師收 +7 | 天天好運(yùn)來(lái)上岸?/a> 2026-03-24 | 7/350 |
|
|
[考研]
|
黃粱一夢(mèng)千年 2026-03-24 | 3/150 |
|
|
[考研] 求調(diào)劑一志愿武漢理工大學(xué)材料工程(085601) +5 | WW.' 2026-03-23 | 7/350 |
|
|
[考研] 344求調(diào)劑 +3 | desto 2026-03-24 | 3/150 |
|
|
[考研] 315分,誠(chéng)求調(diào)劑,材料與化工085600 +3 | 13756423260 2026-03-22 | 3/150 |
|
|
[考研] 求調(diào)劑 +3 | .m.. 2026-03-21 | 4/200 |
|