结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

邹芹; 董培航; 李艳国; 袁振雄; 武迪; 罗永安

doi:10.13394/j.cnki.jgszz.2023.0090

结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

doi: 10.13394/j.cnki.jgszz.2023.0090

邹芹^{1, 2,},
董培航²,
李艳国^1,,
袁振雄²,
武迪¹,
罗永安¹

1.
燕山大学, 亚稳材料制备技术与科学国家重点实验室, 河北秦皇岛 066004
2.
燕山大学机械工程学院, 河北秦皇岛 066004

基金项目: 河北省高等学校科学技术研究项目（ZD2021099）。

详细信息

作者简介:
邹芹，女，1978年生，博士、教授。主要研究方向：超硬材料、高熵陶瓷等。E-mail：zq@ysu.edu.cn

李艳国，男，1978年生，博士、副研究员。主要研究方向：超硬材料、先进钢材料等。E-mail：lyg@ysu.edu.cn

中图分类号: TB333; TG58
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出版历程
- 收稿日期: 2023-04-16
- 修回日期: 2023-09-13
- 录用日期: 2023-11-07
- 网络出版日期: 2023-11-07
- 刊出日期: 2024-04-01

Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites

1.
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
2.
School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China

摘要

摘要: 在高温高压条件下制备了聚晶立方氮化硼（PcBN）复合材料。采用X射线衍射(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS）等研究了结合剂配比和立方氮化硼（cBN）粒度对PcBN复合材料的成分、微观结构、显微硬度和磨耗比的影响。实验结果表明：在压力5.5 GPa，温度1400 ℃，保温10 min的烧结条件下，当V(TiN_0.3)∶V(AlN)=70∶30时，PcBN复合材料性能较为优异，硬度最高达到22.7 GPa，磨耗比达到149.2；当PcBN复合材料中cBN粒度组合为V(0.5～1 μm)∶V(2～5 μm)∶V(5～10 μm) =3∶5∶2时，颗粒之间的堆积密度达到最高，性能也达到最优。
- PcBN复合材料 /
- 高温高压 /
- 结合剂 /
- 粒度
Abstract: Polycrystalline cubic boron nitride composites were prepared under high-temperature and high-pressure conditions. The effects of bonding agent ratio and cBN particle size on the composition, microstructure, microhardness, and abrasive ratios of the PcBN composites were investigated using X-ray diffraction (XRD), field scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The experimental results showed that the PcBN composites performed better under sintering conditions of 5.5 GPa, 1400 ℃, and a 10-minute holding time, achieving a hardness of up to 22.7 GPa and an abrasion ratio of 149.2 at V(TiN_0.3)∶V(AlN)=70∶30. Moreover, when the particle size combination of cBN in PcBN composites is (0.5～1) μm:(2～5) μm:(5～10) μm = 3:5:2, the packing density between particles reaches its peak, resulting in optimal performance.
- PcBN composite /
- high pressure and high temperature (HPHT) /
- binder /
- particle size

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图 1 复合材料的硬度、磨耗比随TiN_0.3与AlN体积比的变化

Figure 1. Variation of hardness and abrasive ratio of composites with variation of TiN_0.3 to AlN volume ratio

下载: 全尺寸图片幻灯片

图 2 TiN_0.3和AlN体积比为70∶30和60∶40时PcBN复合材料的XRD图

Figure 2. XRD image of PcBN composites with TiN_0.3 and AlN ratios of 70∶30 and 60∶40

下载: 全尺寸图片幻灯片

图 3 cBN颗粒的SEM图

Figure 3. SEM image of cBN particles

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图 4 S1与S2组PcBN复合材料断口SEM图

Figure 4. SEM images of fractures of S1 and S2 PcBN composites

(a) V_TiN0.3∶V_AlN=60∶40(b) V_TiN0.3∶V_AlN=70∶30

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图 5 TiN_0.3/AlN/cBN系列PcBN复合材料断口的SEM图

Figure 5. SEM image of TiN_0.3/AlN/cBN PcBN composites fracture

V_TiN0.3∶V_AlN=70∶30

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图 6 PcBN复合材料的硬度、磨耗比随cBN粒度组合变化图

Figure 6. Images of hardness and abrasive ratio of PcBN composites with the combination of cBN particle size

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图 7 粒度组合为V₁∶V₂∶V₃=3∶5∶2的PcBN复合材料断口SEM图

Figure 7. SEM images of the fracture of PcBN composite with particle size combination of V₁∶V₂∶V₃=3∶5∶2

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表 1 PcBN复合材料样品编号以及原料配比

Table 1. PcBN composite sample numbers and raw material ratios

编号	cBN粒度组合	结合剂配比
S1	V₁∶V₂∶V₃= 5∶3∶2	V_TiN0.3∶V_AlN= 70∶30
S2	V₁∶V₂∶V₃= 5∶3∶2	V_TiN0.3∶V_AlN= 60∶40
	V₁∶V₂∶V₃= 5∶3∶2
S3	V₁∶V₂∶V₃= 4∶4∶2	V_TiN0.3∶V_AlN∶V_TaC= 64∶27∶9
	V₁∶V₂∶V₃= 3∶5∶2
	V₁∶V₂∶V₃= 5∶3∶2
S4	V₁∶V₂∶V₃= 4∶4∶2	V_TiN0.3∶V_AlN∶V_WC∶V_VC= 56∶24∶10∶10
	V₁∶V₂∶V₃= 3∶5∶2
	V₁∶V₂∶V₃= 5∶3∶2
S5	V₁∶V₂∶V₃= 4∶4∶2	V_TiN0.3∶V_AlN∶V_TaC∶V_NbC= 62.3∶26.7∶9.0∶2.0
	V₁∶V₂∶V₃= 3∶5∶2

下载: 导出CSV

表 2 eZAF 智能定量结果（物质的量分数）

Table 2. eZAF intelligent quantification results (mole fraction)

元素	点1	点 2	点 3	点 4	点 5	点 6
B K	38.43	0.44	28.31	40.80	7.89	22.12
C K	5.91	5.67	19.29	36.71	7.97	16.02
N K	48.03	35.35	45.71	0.08	43.72	28.67
Al K	4.26	56.60	3.15	5.38	35.73	3.53
Ti K	3.33	1.90	3.46	16.85	4.61	29.08
Ta L	0.03	0.04	0.07	0.17	0.08	0.57

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结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

doi: 10.13394/j.cnki.jgszz.2023.0090

作者简介:
邹芹，女，1978年生，博士、教授。主要研究方向：超硬材料、高熵陶瓷等。E-mail：zq@ysu.edu.cn

李艳国，男，1978年生，博士、副研究员。主要研究方向：超硬材料、先进钢材料等。E-mail：lyg@ysu.edu.cn

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Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites

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结合剂比例和cBN粒度配比对PcBN复合材料微观结构和性能的影响

doi: 10.13394/j.cnki.jgszz.2023.0090

作者简介: 邹芹，女，1978年生，博士、教授。主要研究方向：超硬材料、高熵陶瓷等。E-mail：zq@ysu.edu.cn 李艳国，男，1978年生，博士、副研究员。主要研究方向：超硬材料、先进钢材料等。E-mail：lyg@ysu.edu.cn

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出版历程

Effects of the ratio of binder and the ratio of cBN particle size on the microstructure and properties of PcBN composites

计量

出版历程

目录

作者简介:
邹芹，女，1978年生，博士、教授。主要研究方向：超硬材料、高熵陶瓷等。E-mail：zq@ysu.edu.cn

李艳国，男，1978年生，博士、副研究员。主要研究方向：超硬材料、先进钢材料等。E-mail：lyg@ysu.edu.cn