郭超群,汪天尧,袁天祥,马德林,周芸,左孝青.多孔蒙乃尔合金的制备及其结构特性[J].稀有金属材料与工程,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.]
多孔蒙乃尔合金的制备及其结构特性
投稿时间:2019-05-27  修订日期:2019-07-31
中文关键词:  蒙乃尔合金  多孔材料  碳酸钾  孔隙率  过滤材料
基金项目:国家自然科学基金(51264024);国家自然科学基金 (51861020);大学生创新创业训练计划(201710674207)
中文摘要:
      为了制备蒙乃尔合金多孔材料,本文以蒙乃尔粉为原料,以K2CO3为造孔剂,采用烧结-溶解法制备了不同孔隙率的蒙乃尔合金多孔试样。研究了造孔剂体积分数、压坯压力和烧结温度对试样孔隙率、孔径和透气度的影响。实验结果表明,当造孔剂的体积分数在20%~ 40%之间时,制备的样品孔隙率为31%~46%。当压坯压力在200~400MPa范围时,随压力的增大试样的孔隙率、孔径和透气度均减小;当烧结温度在850~1000℃范围时,随烧结温度升高,孔径和透气度先增大后缓慢降低,在950℃达到峰值。当造孔剂体积分数为30%,压制压力为200MPa,烧结温度950℃时,所制备的蒙乃尔多孔材料孔隙率为37%,最大孔径为21.5μm,透气度为76.77 m3/(h?kPa?m2)。
Preparation and structure characteristics of porous Monel alloy
英文关键词:Monel alloy  Porous materials  K2CO3  Porosity  Filtration material
英文摘要:
      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.
作者单位E-mail
郭超群 昆明理工大学 793103029@qq.com 
汪天尧 昆明理工大学  
袁天祥 昆明理工大学  
马德林 昆明理工大学  
周芸 昆明理工大学 zyuncrystal@qq.com 
左孝青 昆明理工大学  
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