24小時熱門版塊排行榜

北京石油化工學(xué)院2026年研究生招生接收調(diào)劑公告

返回列表

烏克麗麗南京

銀蟲 (小有名氣)

應(yīng)助: 0 (幼兒園)
金幣: 339.3
散金: 166
帖子: 85
在線: 24.7小時
蟲號: 2960191
注冊: 2014-02-09
性別: MM
專業(yè): 催化化學(xué)

[求助] 翻譯幾句英文，我不能理解，可否解釋一下。陶瓷，氧化鋁，粉末微注射法相關(guān)

In the case of ceramic powder where finer particle
size is more easily available, there is a need to develop feedstocks
from powder of submicron or nano-particle size in order
to exploit the full potential of micro PIM. Processing such fine
particle size, especially nano-particles, poses problems because
of its large specific surface area and the associated tendency to
agglomerate. With the use of finer particle size more binder is
required to coat the surfaces of the particles and this can increase
the final shrinkage after sintering. In a survey of available powders,
only some powders are available in submicron particle size
and some examples are copper, iron, tungsten, cobalt, zirconia,
alumina and tungsten carbide. The general rule is that the minimum
feature that can be produced is ten times the particle size.
Thus, to produce smaller features or structural details, finer particle
size is required.
重點(diǎn)是最后兩句，不理解什么意思

回復(fù)此樓

» 猜你喜歡

329求調(diào)劑已經(jīng)有8人回復(fù)
070305高分子化學(xué)與物理 304分求調(diào)劑已經(jīng)有8人回復(fù)
349求調(diào)劑已經(jīng)有5人回復(fù)
一志愿北京理工大學(xué)本科211材料工程294求調(diào)劑已經(jīng)有7人回復(fù)
291求調(diào)劑已經(jīng)有4人回復(fù)
0856材料化工調(diào)劑總分330 已經(jīng)有14人回復(fù)
352分-085602-一志愿985 已經(jīng)有5人回復(fù)
各位老師好，我的一志愿為北京科技大學(xué)085601材料專碩已經(jīng)有8人回復(fù)
求調(diào)劑，一志愿南京航空航天大學(xué) ，080500材料科學(xué)與工程學(xué)碩，總分289分已經(jīng)有4人回復(fù)
279求調(diào)劑已經(jīng)有4人回復(fù)

1樓 2016-03-16 10:58:25

已閱關(guān)注TA 給TA發(fā)消息送TA紅花 TA的回帖

每每的星空

銀蟲 (小有名氣)

翻譯EPI: 10
應(yīng)助: 1 (幼兒園)
金幣: 289.4
紅花: 2
帖子: 55
在線: 18.7小時
蟲號: 3925399
注冊: 2015-06-15
專業(yè): 零件加工制造

【答案】應(yīng)助回帖

一般規(guī)律就是，可制備的最小外形尺寸是粒子尺寸的10倍。因此，為了制備更小的外形或結(jié)構(gòu)型材料，需要更好（�。┑牧Ｗ映叽�

贊一下

回復(fù)此樓

2樓2016-03-17 20:00:26

已閱關(guān)注TA 給TA發(fā)消息送TA紅花 TA的回帖

相關(guān)版塊跳轉(zhuǎn) 我要訂閱樓主烏克麗麗南京的主題更新