| 硬质合金高压熔渗制备聚晶立方氮化硼复合片 |
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| 引用本文： | 贾洪声,;鄂元龙,;李海波,;汪尹强,;贾晓鹏,;马红安,;郑友进.硬质合金高压熔渗制备聚晶立方氮化硼复合片[J].珠宝科技,2014(2):26-30. |
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| 作者姓名： | 贾洪声 ;鄂元龙 ;李海波 ;汪尹强 ;贾晓鹏 ;马红安 ;郑友进 |
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| 作者单位： | [1]吉林师范大学功能材料物理与化学教育部重点实验室,吉林四平136000; [2]吉林大学超硬材料国家重点实验室,吉林长春130012; [3]牡丹江师范学院新型炭基功能与超硬材料省重点实验室,黑龙江牡丹江157011 |
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| 基金项目： | 四平市科技发展计划项目（2012037）; 吉林大学开放课题（201201）; 牡丹江师范学院开放课题（201301）（50572032） |
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| 摘 要： | 在高温高压条件下（HPHT,5.2GPa,1450℃）,通过硬质合金基体的高压原位熔渗法,制备了质地均匀的Φ15×5mm的聚晶立方氮化硼（PcBN）复合片。采用扫描电子显微镜（SEM）、X射线衍射仪（XRD）、能谱仪（EDS）等考察了PcBN复合片的组织形貌及物相成分,并对其界面复合机理进行了探讨。实验结果表明,硬质合金（WC-Co）基体中WC及Co通过熔渗扩散到立方氮化硼（cBN）层,通过WC、MoCoB、Co3W3C等粘结相,实现了PcBN复合片的界面复合,PcBN层形成致密的＂混凝土＂结构。
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| 关 键 词： | 高温高压 聚晶立方氮化硼复合片 熔渗 硬质合金 |
Preparation of Polycrystalline Cubic Boron Nitride Compact by Cemented Carbide High-Pressure Infiltration |
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| Affiliation: | JIA Hong-sheng, E Yuan-long, LI Hai-bo, WANG Yin-qiang, JIA Xiao-peng, MA Hong-an, ZHENG You-jin ( 1. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry oJ Education, J ilin Normal University, Si ping 136000, China ; 2. State Key Laboratory of Superhard Materials, J ilin University, Changchun 130012, China; 3. Key laboratory of New Carbon-base Functional and Superhard Materia, Mudanjiang Normal College, Mudanjiang 157011, China) |
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| Abstract: | Under high temperature and high pressure conditions （HPHT, 5.2GPa, 1450℃）,homogeneous Polycrystalline Cubic Boron Nitride （PcBN）compact ofΦ15 ＆#215; 5 mm has been synthesized through the cemented carbide high pressure in situ melting infil-tration method.The structure morphology and phase composition of PcBN compact has been investigated through scanning electron microscope （SEM）,X-radial Diffractometer （XRD）and Energy Disperse Spectroscopy （EDS）.It＆#39;s mechanism of composite interface has also been discussed.The experiment result shows that the WC and Co in the cemen-ted carbide （WC-Co）substrate spread into Cubic Boron Nitride layer through melting in-filtration.And the binding phase of WC,MoCoB and Co3 W3 C facilitate the interface re-combination of the PcBN compact,hence a compact＆quot;concrete＆quot;structure has been formed on the PcBN layer. |
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| Keywords: | HPHT PcBN Compact melting infiltrating cemented carbide |
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