Toughening effect of mullite whisker within low-density ceramic proppants

被引：7
|
作者：
Hao, Jianying [1 ]
Mu, Baolin [1 ]
Gao, Yunfeng [1 ]
Bai, Pinbo [2 ]
Tian, Yuming [1 ,3 ]
Li, Guomin [1 ]
机构：
[1] Taiyuan Univ Sci & Technol, Inst Mat Sci & Engn, Dept Mech Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Changqing Fracturing Proppant Co Ltd, Yangquan, Peoples R China
[3] Shanxi Engn Vocat Coll, Taiyuan, Shanxi, Peoples R China
来源：
ADVANCED COMPOSITES LETTERS | 2019年 / 28卷
基金：
山西省青年科学基金;
关键词：
ceramics; sintering; mullite whisker; toughening mechanism; crack bifurcation and deflection;
D O I：
10.1177/2633366X19890625
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Main crystal phases of low-density ceramic proppants prepared by bauxite and feldspar are granular corundum and whisker-shaped mullite. Mullite whiskers are interlocked with one another and piled up inside the pores. High aspect ratio of mullite whiskers inside the pores can greatly enhance the fracture toughness. The dominant toughening mechanism for the proppants is attributed to crack bifurcation and deflection and pulling out and bridging effect of mullite whiskers.
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收藏
页数：5
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