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Author:

张勇 (张勇.) | 王红洁 (王红洁.) | 张雯 (张雯.) | 金志浩 (金志浩.)

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CSCD PKU WF

Abstract:

以氮化硅为基体,通过加入一定量的纳米碳粉等添加剂,成功的制备出了具有高强度和较高气孔率的氮化硅多孔陶瓷.采用阿基米得法、三点弯曲法测试了材料的密度、气孔率及强度;用X射线衍射仪及扫描电镜对相组成及断口进行了研究.实验结果表明:加入的纳米碳粉同在Si3N4表面的SiO2或者同Si3N4颗粒本身反应,生成了极细的SiC颗粒,钉扎在β型氮化硅的晶界,可以有效的增加材料的强度.在含碳量为5%(质量分数),1 780℃下保温60 min,可以制得强度大于100 MPa,气孔率大于40%的氮化硅多孔陶瓷.

Keyword:

氮化硅 多孔陶瓷 碳化硅

Author Community:

  • [ 1 ] [金志浩]西安交通大学
  • [ 2 ] [张雯]西安交通大学
  • [ 3 ] [王红洁]西安交通大学
  • [ 4 ] [张勇]西安交通大学

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Source :

稀有金属材料与工程

ISSN: 1002-185X

Year: 2004

Issue: 6

Page: 655-658

0 . 4 3 7

JCR@2004

0 . 5 0 6

JCR@2020

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count: -1

30 Days PV: 6

Affiliated Colleges:

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