 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 1 | 1/1 | 返回列表 |
| 查看: 230 | 回復(fù): 0 | |||
[交流]
鋁粉多樣化氧化的機(jī)理
|
| Thermal analysis is widely used to establish rates and mechanisms of oxidation of metal powders. For heterogeneous oxidation of aluminum, reaction may occur at the outer or inner surface of the growing oxide layer, depending on whether metal or oxidizer diffuse faster through that layer. A methodology of processing thermo-analytical measurements is introduced to distinguish such differences in the oxidation mechanism. The entire size distribution is considered for two spherical aluminum powders with different but overlapping particle sizes. The measured weight gain is distributed among particles of different sizes assuming that the rate of oxidation is proportional to the current reactive interface area. Three models are considered to determine the interface area. Weight gains for the same size particles from different powders were expected to be identical to each other when the model described the true oxidation mechanism. The results show that the reaction at the outer surface of a rigid oxide shell accurately describes the experiments. Thus, the outward diffusion of aluminum ions controls the rate of heterogeneous oxidation of aluminum in a wide range of temperatures from 400 – 1500°C. |
回復(fù)此樓» 本帖附件資源列表
-
歡迎監(jiān)督和反饋：小木蟲僅提供交流平臺(tái)，不對(duì)該內(nèi)容負(fù)責(zé)。
本內(nèi)容由用戶自主發(fā)布，如果其內(nèi)容涉及到知識(shí)產(chǎn)權(quán)問題，其責(zé)任在于用戶本人，如對(duì)版權(quán)有異議，請聯(lián)系郵箱：xiaomuchong@tal.com - 附件 1 : 鋁粉多樣化氧化的機(jī)理.pdf
2017-02-22 15:36:55, 430.81 K
» 猜你喜歡
306求調(diào)劑
已經(jīng)有8人回復(fù)
-
招08考數(shù)學(xué)
已經(jīng)有12人回復(fù)
-
接收2026碩士調(diào)劑(學(xué)碩+專碩)
已經(jīng)有4人回復(fù)
-
北科281學(xué)碩材料求調(diào)劑
已經(jīng)有9人回復(fù)
-
306求0703調(diào)劑一志愿華中師范
已經(jīng)有6人回復(fù)
-
276求調(diào)劑。有半年電池和半年高分子實(shí)習(xí)經(jīng)歷
已經(jīng)有8人回復(fù)
-
材料與化工考研調(diào)劑
已經(jīng)有3人回復(fù)
-
081700 調(diào)劑 267分
已經(jīng)有3人回復(fù)
-
一志愿重慶大學(xué)085700資源與環(huán)境，總分308求調(diào)劑
已經(jīng)有3人回復(fù)
-
336化工調(diào)劑
已經(jīng)有4人回復(fù)
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 TAINST 的主題更新
| 1 | 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] 北科281學(xué)碩材料求調(diào)劑 +8 | tcxiaoxx 2026-03-20 | 9/450 |
|
|---|---|---|---|---|
|
[考研] 276求調(diào)劑。有半年電池和半年高分子實(shí)習(xí)經(jīng)歷 +7 | 材料學(xué)257求調(diào)劑 2026-03-23 | 8/400 |
|
|
|
[考研] 一志愿北京化工大學(xué) 070300 學(xué)碩 336分 求調(diào)劑 +5 | vv迷 2026-03-22 | 5/250 |
|
|
|
[考研] 323求調(diào)劑 +6 | 洼小桶 2026-03-18 | 6/300 |
|
|
|
[考研] 求調(diào)劑 +5 | Zhangbod 2026-03-21 | 7/350 |
|
|
|
[考研] 初試 317 +7 | 半拉月丙 2026-03-20 | 7/350 |
|
|
|
[考研] 廣西大學(xué)材料導(dǎo)師推薦 +3 | 夏夏夏小正 2026-03-17 | 5/250 |
|
|
|
[考研] 0703化學(xué)297求調(diào)劑 +3 | Daisy☆ 2026-03-20 | 3/150 |
|
|
|
[考研] 311求調(diào)劑 +3 | 勇敢的小吳 2026-03-20 | 3/150 |
|
|
|
[考研] 336求調(diào)劑 +5 | rmc8866 2026-03-21 | 5/250 |
|
|
|
[考研] 346求調(diào)劑[0856] +4 | WayneLim327 2026-03-16 | 7/350 |
|
|
|
[考研] 265求調(diào)劑 +3 | Jack?k?y 2026-03-17 | 3/150 |
|
|
|
[考研] 一志愿中國石油大學(xué)（華東） 本科齊魯工業(yè)大學(xué) +3 | 石能偉 2026-03-17 | 3/150 |
|
|
|
[考研] 304求調(diào)劑 +7 | 司空. 2026-03-18 | 7/350 |
|
|
|
[考研] 求調(diào)劑，一志愿:南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩，總分289分 +4 | @taotao 2026-03-19 | 4/200 |
|
|
|
[考研] 一志愿蘇州大學(xué)材料求調(diào)劑，總分315（英一） +5 | sbdksD 2026-03-19 | 5/250 |
|
|
|
[考研] 一志愿 南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩 +5 | @taotao 2026-03-20 | 5/250 |
|
|
|
[考研] 材料與化工專碩調(diào)劑 +7 | heming3743 2026-03-16 | 7/350 |
|
|
|
[考研] 工科材料085601 279求調(diào)劑 +7 | 困于星晨 2026-03-17 | 9/450 |
|
|
|
[考研] 0703化學(xué)調(diào)劑 +4 | 18889395102 2026-03-18 | 4/200 |
|