| 铝硼硅玻璃基体中金刚石氧化机理 |
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| 引用本文： | 张向红,王艳辉,臧建兵,张金辉. 铝硼硅玻璃基体中金刚石氧化机理[J]. 金刚石与磨料磨具工程, 2022, 42(3): 373-378. DOI: 10.13394/j.cnki.jgszz.2021.3010 |
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| 作者姓名： | 张向红 王艳辉 臧建兵 张金辉 |
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| 作者单位： | 1.河北建材职业技术学院, 河北 秦皇岛 0660042.燕山大学 材料学院, 亚稳材料制备科学与技术国家重点实验室, 河北 秦皇岛 0660043.唐山学院 环境与化学工程系, 河北 唐山063000 |
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| 基金项目： | 河北省科技计划——中央引导地方科技发展资金项目（216Z1102G）。 |
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| 摘 要： | 开展金刚石/铝硼硅玻璃复合材料的烧结试验，通过TG-DSC分析、XRD分析和Raman分析，研究铝硼硅玻璃熔体中金刚石的氧化反应机理。试验结果表明：烧结纯铝硼硅玻璃时，在1 000℃以下，没有任何化学反应发生；烧结金刚石/铝硼硅玻璃复合材料时，温度高于814°C后会发生体积膨胀、强度降低的现象；烧结温度780℃为最理想烧结温度，复合材料膨胀率约10%，抗折强度约39.0 MPa。在烧结温度不超过908.4℃时，金刚石和游离氧而非铝硼硅玻璃中的氧化物之间发生了氧化反应。
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| 关 键 词： | 铝硼硅玻璃结合剂 金刚石 氧化反应机理 |
| 收稿时间： | 2022-02-04 |
Oxidization of diamond grits in diamond/borosilicate glass composites |
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| ZHANG Xianghong,WANG Yanhui,ZANG Jianbing,ZHANG Jinhui. Oxidization of diamond grits in diamond/borosilicate glass composites[J]. Diamond & Abrasives Engineering, 2022, 42(3): 373-378. DOI: 10.13394/j.cnki.jgszz.2021.3010 |
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| Authors: | ZHANG Xianghong WANG Yanhui ZANG Jianbing ZHANG Jinhui |
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| Affiliation: | 1.Hebei Vocational & Technical College of Building Materials, Qinhuangdao 066004, Hebei, China2.School of Materials Science and Engineering, State Key Laboratory of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao 066004, Hebei, China3.Department of Environmental and Chemical Engineering, Tangshan University, Tangshan 063000, Hebei, China |
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| Abstract: | The oxidation reaction mechanism of diamond grits in diamond/borosilicate glass composites was studied. The composites were sintered at different conditions and the samples were analyzed through TG–DSC, XRD and Raman. The results showed no chemical reaction occurred when borosilicate glass was sintered below 1000 ℃. But when sintering diamond/borosilicate glass composites at temperatures above 814 ℃, there appeared volume expansion and bending strength decreasing. The volume expansion is 10% and the bending strength is 39.0 MPa when the composites are sintered at 780 ℃. Through thermodynamic analysis, XDR analysis and Raman analysis, it is found that when the sintering temperature is lower than 908.4 ℃, the diamond is oxidized by the free oxygen other than the oxides in the glass. |
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