Reactive hot pressing and mechanical properties of B4C/Li2O-Al2O3-SiO2 composites

被引：13
作者：
Xia, Long [1 ]
Zhong, Bo [1 ]
Song, Tao [2 ]
Wu, Songsong [1 ]
Zhang, Tao [1 ]
Wen, Guangwu [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Weihai 264209, Peoples R China
[2] Shandong Ind Ceram Res & Design Inst Co Ltd, Zibo 255031, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2016年 / 432卷
基金：
中国国家自然科学基金;
关键词：
Hot pressing; Composites; Mechanical properties; Glass-ceramic; LITHIUM ALUMINOSILICATE GLASS; CRYSTALLIZATION BEHAVIOR; PHASE-TRANSFORMATIONS; FRACTURE-TOUGHNESS; RAMAN-SPECTROSCOPY; MATRIX COMPOSITES; MICROSTRUCTURE; CERAMICS; LAS; NUCLEATION;
D O I：
10.1016/j.jnoncrysol.2015.11.012
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
B4C/Li2O-Al2O5-SiO2 (B4C/LAS) composites with different B4C contents were fabricated using hot-pressing technique. Mechanical properties of the B4C/LAS composites were investigated as a function of initial B4C content The addition of B4C deteriorated both fracture toughness and flexural strength of the composites initially. B4C/LAS composites demonstrated improved mechanical properties when initial B4C content increased to 10 wa. XPS, XRD and TEM analyses illustrated that a chemical reaction took place between B4C and LAS matrix. The synergism of high relative density, high crystallinity and fine grain size, was responsible for improved mechanical properties of B4C/LAS composites. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：510 / 518
页数：9
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