| 热稳定金刚石聚晶的制备及表征 |
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| 引用本文： | 黄海亮,贾晓鹏,马红安,王丹,刘艳凤,尹龙承,左桂红.热稳定金刚石聚晶的制备及表征[J].珠宝科技,2011(3):1-5. |
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| 作者姓名： | 黄海亮 贾晓鹏 马红安 王丹 刘艳凤 尹龙承 左桂红 |
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| 作者单位： | [1]牡丹江师范学院新型碳基功能与超硬材料省重点实验室,黑龙江牡丹江157012 [2]吉林大学超硬材料国家重点实验室,吉林长春130012 |
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| 基金项目： | 牡丹江师范学院科研基金项目（项目编号：QY201003）资助;牡丹江师范学院科技青年创新项目（项目编号：Qc200905）资助; 牡丹江市科学技术计划项目（项目编号：G2010g0004）资助;牡丹江市科学技术计划项目（项目编号：G2011g0004）资助; 黑龙江省教育厅科技面上项目（项目编号：11551518）资助; |
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| 摘 要： | 在高温高压条件下（5.6GPa,1200℃～1480℃）,以含硼金刚石微粉为原料,镍基合金为烧结助剂,采用熔渗法成功制备了热稳定金刚石聚晶（Thermally stable PCD）。通过X射线衍射（XRD）和扫描电镜（SEM）,研究了烧结温度对热稳定金刚石聚晶的物相成分、微观组织形貌的影响;并与普通金刚石聚晶进行了差热（DTA）、热重（TG）的对比分析测试,结合X射线光电子能谱（XPS）测试结果给出了相应解释。实验结果表明：在压强为5.6GPa条件下,温度在1300℃～1450℃区间内,才能实现热稳定PCD的烧结;此时形成的热稳定PCD的耐热性和抗氧化性相比普通PCD均有较大幅度提高。
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| 关 键 词： | 金刚石聚晶 熔渗法 制备 热稳定性 |
Synthesis and characterization of thermostable polycrystalline diamond |
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| HUANG Hai-liang,JIA Xiao-peng,MA Hong-an,WANG Dan,LIU Yan-feng,YIN Long-cheng,ZUO Gui-hong.Synthesis and characterization of thermostable polycrystalline diamond[J].Jewellery Science and Technology,2011(3):1-5. |
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| Authors: | HUANG Hai-liang JIA Xiao-peng MA Hong-an WANG Dan LIU Yan-feng YIN Long-cheng ZUO Gui-hong |
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| Affiliation: | 1.Key Laboratory of New Carbon-base Functional and Superhard Material,Mudanjiang Normal College,Mudanjiang 157012,China; 2.State Key Laboratory of Superhard Materials,Jilin University,Changchun 130012,China) |
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| Abstract: | In this paper,we report the synthesis and characterization of thermally stable polycrystalline diamond（PCD） using Ni-based alloys catalyst as a sintering aid and the B-doped diamond powder in the infiltrating way.The samples were treated at 5.6GPa and 1200℃～1480℃ for 10 min in China-type cubic hinge apparatus.Scanning electron microscopy showed significant intergrowth of the diamond particles sintered in the presence of Ni-based alloy.X-ray diffraction showed the phase change of the samples sintered at the different temperature.Differential thermal analysis（DTA） and thermo-gravimetric analysis（TG） showed the sample was significantly more heat-resisting compared to conventional PCD.And the X-ray photoelectron spectroscopy（XPS） investigation of the samples was carried out in order to gain more knowledge about the role of the boron doped in the thermally stable polycrystalline diamond.The results showed that the appropriate conditions of thermally stable PCD sintered were 5.6GPa and 1200℃～1480℃. |
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| Keywords: | polycrystalline diamond infiltration fabrication thermally stable characterization |
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