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Polycrystalline cubic boron nitride composite sheet with continuous gradient structure and preparation method of polycrystalline cubic boron nitride composite sheet
The invention discloses a polycrystalline cubic boron nitride composite sheet with a continuous gradient structure and a preparation method thereof.The polycrystalline cubic boron nitride composite sheet is composed of a hard alloy matrix, a continuous gradient layer and a CBN layer from bottom to top, the continuous gradient layer comprises hard alloy and CBN, and the content of the CBN is continuously and gradually increased from bottom to top; the content of the hard alloy is continuously and gradually reduced from bottom to top; and the volume fraction D of the CBN in the continuous gradient layer and the volume fraction M of the hard alloy both meet an exponential gradient function. Meanwhile, the preparation of the polycrystalline cubic boron nitride composite sheet with a continuous gradient structure is realized by utilizing a slurry direct-writing 3D printing technology, the problem of excessive interfaces existing in a layered gradient structure is solved by the obtained polycrystalline cubic boron nitride composite sheet, the residual stress is greatly reduced, and the performance of the polycrystalline cubic boron nitride composite sheet is improved. And the bonding strength of the cubic boron nitride composite sheet with the gradient structure is improved.
本发明公开了一种具有连续梯度结构的聚晶立方氮化硼复合片及其制备方法，该聚晶立方氮化硼复合片由下至上，由硬质合金基体、连续梯度层和CBN层构成，连续梯度层包含硬质合金和CBN，且CBN的含量由下至上连续渐变增多，硬质合金的含量由下至上连续渐变减少；连续梯度层中CBN的体积分数D与硬质合金的体积分数M均满足指数渐变函数。同时，本发明利用浆料直写3D打印技术实现了连续梯度结构的聚晶立方氮化硼复合片的制备，所得聚晶立方氮化硼复合片解决了分层式梯度结构存在的分界面过多的问题，大大减小了残余应力，提高了梯度结构立方氮化硼硼复合片的结合强度。
Polycrystalline cubic boron nitride composite sheet with continuous gradient structure and preparation method of polycrystalline cubic boron nitride composite sheet
The invention discloses a polycrystalline cubic boron nitride composite sheet with a continuous gradient structure and a preparation method thereof.The polycrystalline cubic boron nitride composite sheet is composed of a hard alloy matrix, a continuous gradient layer and a CBN layer from bottom to top, the continuous gradient layer comprises hard alloy and CBN, and the content of the CBN is continuously and gradually increased from bottom to top; the content of the hard alloy is continuously and gradually reduced from bottom to top; and the volume fraction D of the CBN in the continuous gradient layer and the volume fraction M of the hard alloy both meet an exponential gradient function. Meanwhile, the preparation of the polycrystalline cubic boron nitride composite sheet with a continuous gradient structure is realized by utilizing a slurry direct-writing 3D printing technology, the problem of excessive interfaces existing in a layered gradient structure is solved by the obtained polycrystalline cubic boron nitride composite sheet, the residual stress is greatly reduced, and the performance of the polycrystalline cubic boron nitride composite sheet is improved. And the bonding strength of the cubic boron nitride composite sheet with the gradient structure is improved.
本发明公开了一种具有连续梯度结构的聚晶立方氮化硼复合片及其制备方法，该聚晶立方氮化硼复合片由下至上，由硬质合金基体、连续梯度层和CBN层构成，连续梯度层包含硬质合金和CBN，且CBN的含量由下至上连续渐变增多，硬质合金的含量由下至上连续渐变减少；连续梯度层中CBN的体积分数D与硬质合金的体积分数M均满足指数渐变函数。同时，本发明利用浆料直写3D打印技术实现了连续梯度结构的聚晶立方氮化硼复合片的制备，所得聚晶立方氮化硼复合片解决了分层式梯度结构存在的分界面过多的问题，大大减小了残余应力，提高了梯度结构立方氮化硼硼复合片的结合强度。
Polycrystalline cubic boron nitride composite sheet with continuous gradient structure and preparation method of polycrystalline cubic boron nitride composite sheet
一种具有连续梯度结构的聚晶立方氮化硼复合片及其制备方法
ZHANG SHAOHE (author) / RONG LINGLONG (author) / ZHAO DONGPENG (author) / KONG XIANGWANG (author) / WU JINGJING (author) / ZHANG HAOYANG (author) / GAO HUA (author) / LI JINCHENG (author) / SHAO MENGYAO (author) / GENG CHANGJIAN (author)
2024-01-02
Patent
Electronic Resource
Chinese
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
C04B
Kalk
,
LIME
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