Effect of ZrO2 Content on the Properties of Diamond Grinding Wheel Vitrified Bond
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第1期
论文作者：刘小磐 QIAO Ang WAN Long HU Weida SONG Dongdong LI Zheng YIN Zhongjie 潘瑞琨
文章页码：19 - 22
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 37.6°.
刘小磐1，QIAO Ang2，WAN Long1，HU Weida1，SONG Dongdong1，LI Zheng1，YIN Zhongjie2，潘瑞琨2,3
1. School of Material Science and Engineering, Hunan University2. State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology)3. School of Materials Science and Engineering, Hubei University
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 37.6°.
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