Effect of Y2O3 on the properties of vitrified bond and vitrified diamond composites

In order to optimize the diamond grinding tools capacity for precise grinding, the effects of Y2O3 fillers on the thermal and mechanical properties of vitrified bond and vitrified diamond composites was comprehensively investigated. The results show that the 1.5wt.% Y2O3-doped-vitrified bond could i...

Full description

Saved in:
Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2014-12, Vol.67, p.515-520
Main Authors: Xia, Pei, Jiang, Rongrong, Li, Zhihong, Zhu, Yumei, Zhai, Chenxi, Feng, Dandan, Sun, Peihao
Format: Article
Language:English
Subjects:
A. Ceramic–matrix composites (CMCs)
Applied sciences
B. Mechanical properties
B. Thermal properties
Bonding
Cross-disciplinary physics: materials science
rheology
Crystal structure
Cutting
Diamond tools
Diamonds
Exact sciences and technology
Fillers
Glass ceramics
Grinding
Materials science
Mechanical properties
Metals. Metallurgy
Other materials
Physics
Production techniques
Specific materials
Y2O3
Yttrium oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to optimize the diamond grinding tools capacity for precise grinding, the effects of Y2O3 fillers on the thermal and mechanical properties of vitrified bond and vitrified diamond composites was comprehensively investigated. The results show that the 1.5wt.% Y2O3-doped-vitrified bond could improve the flowing ability and decrease the linear coefficient of thermal expansion of vitrified bond. Meanwhile, the mechanical strength of the diamond composites was increased from 46 to 61.74MPa by incorporating 1.5wt.% Y2O3 fillers, which was 34.2% higher than that of 0wt.% Y2O3-doped-composites. Microstructure characterization indicates that the diamond grains were closely overlaid by vitrified bond and the diamond composite had denser structure when the content of Y2O3 reached 1.5wt.%. Furthermore, a homogeneous crystalline quartz phase in the vitrified bond was obtained in the sintered vitrified bond at a Y2O3 loading of 1.5wt.%. Such crystallization composites with better thermal performance and superior mechanical property might be promising in glass–ceramics matrixmaterials for grinding.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2014.08.003