最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
多孔蒙乃爾合金的制備及其結(jié)構(gòu)特性
作者:
作者單位:

昆明理工大學(xué)

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金（51264024）；國(guó)家自然科學(xué)基金 （51861020）；大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃（201710674207）


Preparation and structure characteristics of porous Monel alloy
Author:
Affiliation:

Kunming University of Science and Technology

Fund Project:

National Nature Science Foundation of China (51264024); National Nature Science Foundation of China (51861020); Innovation and Entrepreneurship Training Project for College Students (201710674207)

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    為了制備蒙乃爾合金多孔材料，本文以蒙乃爾粉為原料，以K2CO3為造孔劑，采用燒結(jié)-溶解法制備了不同孔隙率的蒙乃爾合金多孔試樣。研究了造孔劑體積分?jǐn)?shù)、壓坯壓力和燒結(jié)溫度對(duì)試樣孔隙率、孔徑和透氣度的影響。實(shí)驗(yàn)結(jié)果表明，當(dāng)造孔劑的體積分?jǐn)?shù)在20%~ 40%之間時(shí)，制備的樣品孔隙率為31%~46%。當(dāng)壓坯壓力在200~400MPa范圍時(shí)，隨壓力的增大試樣的孔隙率、孔徑和透氣度均減小；當(dāng)燒結(jié)溫度在850~1000℃范圍時(shí)，隨燒結(jié)溫度升高，孔徑和透氣度先增大后緩慢降低，在950℃達(dá)到峰值。當(dāng)造孔劑體積分?jǐn)?shù)為30%，壓制壓力為200MPa，燒結(jié)溫度950℃時(shí)，所制備的蒙乃爾多孔材料孔隙率為37%，最大孔徑為21.5μm，透氣度為76.77 m3/(h?kPa?m2)。

    Abstract:

    In order to prepare Monel alloy porous filtration material, Monel powder was used as raw material and K2CO3 as a space holder, the porous Monel samples with different porosity were fabricated by a sintering-dissolution process. The influence of space holder, compacting pressure and sintering temperature on the porosity, cell size and permeability of samples were investigated and discussed. The experimental results show that the porosity of samples is in range of 31%~46%, while the volume fraction of space holder between 20 vol.% and 40 vol.%. While compacting pressure in the range of 200~400 MPa, the porosity, cell size and permeability of samples decrease with compacting pressure increasing; while sintering temperature in the range of 850~1000 ℃, the cell size and permeability increase first, then slowly decrease with the sintering temperature increasing, the peak value at 950 ℃.While the volume fraction of space holder is 30%, compacting pressure 200 MPa, sintering temperature 950 ℃, the porosity, maximum cell size and permeability of the porous Monel sample are 37%, 21.5μm, 76.77 m3/(h?kPa?m2), respectively.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

郭超群,汪天堯,袁天祥,馬德林,周蕓,左孝青.多孔蒙乃爾合金的制備及其結(jié)構(gòu)特性[J].稀有金屬材料與工程,2020,49(8):2630~2635.[Guo Chaoqun, Wang Tianyao, Yuan Tianxiang, Ma Delin, Zhou Yun, Zuo Xiaoqing. Preparation and structure characteristics of porous Monel alloy[J]. Rare Metal Materials and Engineering,2020,49(8):2630~2635.]
DOI：10.12442/j. issn.1002-185X.20190450

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2019-05-27
  • 最后修改日期:2019-07-31
  • 錄用日期:2019-08-21
  • 在線發(fā)布日期: 2020-09-27
  • 出版日期: