Effect of ZrO2 content on the properties of diamond grinding wheel vitrified bond

被引:12
作者
Liu Xiaopan [1 ]
Qiao Ang [2 ]
Wan Long [1 ]
Hu Weida [1 ]
Song Dongdong [1 ]
Li Zheng [1 ]
Yin Zhongjie [2 ]
Pan Ruikun [2 ,3 ]
机构
[1] Hunan Univ, Sch Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
[3] Hubei Univ, Sch Mat Sci & Engn, Wuhan 430062, Peoples R China
基金
中国国家自然科学基金;
关键词
ZrO2; vitrified bond; bending strength; expansion coefficient; wetting angle; CRYSTALLIZATION;
D O I
10.1007/s11595-014-0860-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of ZrO2 content on the performance of vitrified bond was discussed. The results showed that when the ZrO2 content was less than 2 mol%, Zr4+ could enter into the glassy network as mending nets and agglomeration composition. In this case, with the increasing of ZrO2, the vitrified bond's bending strength increased and the expansion coefficient decreased. It was also found that the wetting angle between the vitrified bond and diamond got small because Zr4+ was enriched on diamond surface. When ZrO2 content was more than 2 mol%, a part of ZrO2 existing in vitrified bond as ZrO2 particles played the role in nucleating agents and promoting the separation of spodumene. When ZrO2 content was 3 mol%, the bending strength of the vitrified bond reached its maximum of 128 MPa and the wetting angle with the diamond reached its minimum of 37.6A degrees.
引用
收藏
页码:19 / 22
页数:4
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