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铝硼硅玻璃基体中金刚石氧化机理

张向红 王艳辉 臧建兵 张金辉

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
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
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
Citation: 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

铝硼硅玻璃基体中金刚石氧化机理

doi: 10.13394/j.cnki.jgszz.2021.3010
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)。
详细信息
    通讯作者:

    臧建兵,女,1968年生,教授、博士生导师。主要研究方向:金刚石及相关材料,电极材料,纳米材料,超硬材料及超硬复合材料。Email:diamondzjb@163.com

  • 中图分类号: TQ164

Oxidization of diamond grits in diamond/borosilicate glass composites

  • 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1000 ℃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。

     

  • 图  1  铝硼硅玻璃的TG–DSC结果

    Figure  1.  TG–DSC result of alumino-borosilicate glass

    图  2  900 ℃保温烧结120 min的铝硼硅玻璃的XRD图谱

    Figure  2.  XRD pattern of alumino-borosilicate glass sintered at 900 ℃ for 120 min

    图  3  铝硼硅玻璃试样的抗折强度

    Figure  3.  Bending strength of alumino-borosilicate glass samples

    图  4  金刚石/铝硼硅玻璃复合材料的体积膨胀率及抗折强度

    Figure  4.  Volume expansion ratio and bending strength of diamond/glass composites

    图  5  金刚石/铝硼硅玻璃复合材料断面的SEM照片

    Figure  5.  SEM micrograph of sections of diamond/ glass composites at different temperatures

    图  6  金刚石/铝硼硅玻璃粉末和纯铝硼硅玻璃粉末在大气气氛环境中的TG曲线

    Figure  6.  TG curves for diamond/glass mixed powders andpure glass powders in atmosphere

    图  7  试样的XRD图谱

    Figure  7.  XRD patterns of samples

    图  8  金刚石/铝硼硅玻璃复合材料的Raman图谱

    Figure  8.  Raman spectra of diamond / glass composite

    表  1  铝硼硅玻璃的化学成分

    Table  1.   Chemical compositions of alumino-borosilicate glass

    化学组成质量分数 ω / %
    SiO251.77
    Al2O314.30
    B2O316.53
    (Na2O+ K2O)17.40
    下载: 导出CSV

    表  2  氧化物与金刚石的理论反应温度[12]

    Table  2.   Theoretical reaction temperature of diamond and oxides in borosilicate glass[12]

    氧化物反应温度 T / K
    SiO22738.1
    Al2O33356.1
    B2O32474.0
    Na2O1627.5
    K2O1181.4
    下载: 导出CSV
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出版历程
  • 录用日期:  2022-03-04
  • 收稿日期:  2022-02-04
  • 修回日期:  2022-03-01

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