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

被引：14

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

页码：510 / 518

页数：9

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