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史忠旗 (史忠旗.) | 杨必果 (杨必果.) | 张哲健 (张哲健.) | 夏鸿雁 (夏鸿雁.) | 王继平 (王继平.) | 王红洁 (王红洁.) | 杨建锋 (杨建锋.)

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Abstract:

本发明公开了一种高强度碳化硅泡沫陶瓷及其一次挂浆炭化烧结制备方法,属于碳化硅泡沫陶瓷制备技术领域。该方法利用泡沫塑料作为模板,采用一次挂浆炭化烧结法,使用高残碳树脂、硅粉、烧结助剂及酒精混合制成具备一定粘度的浆料,将泡沫塑料浸入浆料中,取出后采用离心法除去多余浆料,阴干干燥后重复挂浆,直至达到所需体积分数。然后将挂浆后的泡沫前躯体置于管式炉中在氮气或者氩气气氛中进行热解炭化,获得由热解炭、硅粉以及烧结助剂组成的泡沫陶瓷碳前驱体骨架,最后将泡沫陶瓷碳前驱体骨架置于气氛炉中进行烧结,得到了制得高强度SiC泡沫陶瓷。与传统的模板法相比,该方法工艺简单,反应条件温和,对设备要求低,易于实现大规模生产。

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Patent Info :

Type: 发明申请

Patent No.: CN201810885523.7

Filing Date: 2018-08-06

Publication Date: 2019-01-04

Pub. No.: CN109133933A

Applicants: 西安交通大学

Legal Status: 实质审查

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 4

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