Preparation and Room-Temperature Fracture Toughness of Mo-Si-B Ternary System Composites

LIU Fengshou; YANG Wangyue; ZHANG Laiqi

doi:10.13374/j.issn1001-053x.2004.01.018

Volume 26 Issue 1

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2004 > 26(1): 63-68

LIU Fengshou, YANG Wangyue, ZHANG Laiqi. Preparation and Room-Temperature Fracture Toughness of Mo-Si-B Ternary System Composites[J]. Chinese Journal of Engineering, 2004, 26(1): 63-68. doi: 10.13374/j.issn1001-053x.2004.01.018

Citation:

LIU Fengshou, YANG Wangyue, ZHANG Laiqi. Preparation and Room-Temperature Fracture Toughness of Mo-Si-B Ternary System Composites[J]. Chinese Journal of Engineering, 2004, 26(1): 63-68. doi: 10.13374/j.issn1001-053x.2004.01.018

Citation:

PDF( 1211 KB)

Preparation and Room-Temperature Fracture Toughness of Mo-Si-B Ternary System Composites

doi: 10.13374/j.issn1001-053x.2004.01.018

1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. The State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2003-06-12

Abstract

Abstract

The alloys containing Mo-12Si-8.5B and Mo-28Si-8.5B respectively were prepared by the in-situ synthesis reaction of the elemental powders of Mo, Si and B by hot-pressing. The microstructures and the annealing processing were investigated by optical microscopy, polariscopy, scanning election microscopy (SEM), and X-ray diSractometry (XRD). The fracture toughness of the alloys at room temperature were determined to be 7.7 and 4.1 MPa·m^1/2 respectively. The mechanism for toughening at ambient temperature was discussed.
- in-situ synthesis,
- hot-pressing,
- Mo-Si-B composite,
- room-temperature fracture toughness