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High-entropy carbonitride ceramic composite tool with high hardness and high strength as well as preparation method and application of high-entropy carbonitride ceramic composite tool
The invention belongs to the technical field of ceramic materials, and discloses a high-entropy carbonitride ceramic composite tool with high hardness and high strength and a preparation method and application thereof. The high-entropy carbonitride ceramic composite tool comprises high-entropy carbonitride ceramic (Ti0. 25Zr0. 25Nb0. 25Ta0. 25) CxN1-x serving as a tool bit and WC-Co hard alloy serving as a tool bar, wherein x is larger than or equal to 0.5 and smaller than or equal to 0.9, TiC, ZrC, NbC, TaC, TiN, ZrN, NbN and TaN are mixed, spark plasma sintering is conducted at the temperature of 1600-1800 DEG C in the argon atmosphere, and the high-entropy carbonitride ceramic is prepared; and then coating CuSnTi brazing filler metal between the high-entropy carbonitride ceramic and the WC-Co hard alloy, and welding at the temperature of 880-930 DEG C to obtain the high-entropy carbonitride ceramic-WC-Co hard alloy. The high-entropy carbonitride ceramic composite tool can be applied to continuous cutting of high-hardness materials such as gray cast iron and nodular cast iron.
本发明属于陶瓷材料技术领域，公开了一种高硬度和高强度的高熵碳氮化物陶瓷复合刀具及其制备方法和应用。该高熵碳氮化物陶瓷复合刀具包括作为刀头的高熵碳氮化物陶瓷(Ti0.25Zr0.25Nb0.25Ta0.25)CxN1‑x，0.5≤x≤0.9和作为刀杆的WC‑Co硬质合金，该陶瓷复合刀具是先将TiC、ZrC、NbC、TaC、TiN、ZrN、NbN和TaN混合，氩气气氛下在1600～1800℃放电等离子烧结制得高熵碳氮化物陶瓷；再将高熵碳氮化物陶瓷与WC‑Co硬质合金之间涂覆CuSnTi钎料，在880～930℃焊接制得。该高熵碳氮化物陶瓷复合刀具可应用于灰铸铁、球墨铸铁等高硬度材料的连续切削。
High-entropy carbonitride ceramic composite tool with high hardness and high strength as well as preparation method and application of high-entropy carbonitride ceramic composite tool
The invention belongs to the technical field of ceramic materials, and discloses a high-entropy carbonitride ceramic composite tool with high hardness and high strength and a preparation method and application thereof. The high-entropy carbonitride ceramic composite tool comprises high-entropy carbonitride ceramic (Ti0. 25Zr0. 25Nb0. 25Ta0. 25) CxN1-x serving as a tool bit and WC-Co hard alloy serving as a tool bar, wherein x is larger than or equal to 0.5 and smaller than or equal to 0.9, TiC, ZrC, NbC, TaC, TiN, ZrN, NbN and TaN are mixed, spark plasma sintering is conducted at the temperature of 1600-1800 DEG C in the argon atmosphere, and the high-entropy carbonitride ceramic is prepared; and then coating CuSnTi brazing filler metal between the high-entropy carbonitride ceramic and the WC-Co hard alloy, and welding at the temperature of 880-930 DEG C to obtain the high-entropy carbonitride ceramic-WC-Co hard alloy. The high-entropy carbonitride ceramic composite tool can be applied to continuous cutting of high-hardness materials such as gray cast iron and nodular cast iron.
本发明属于陶瓷材料技术领域，公开了一种高硬度和高强度的高熵碳氮化物陶瓷复合刀具及其制备方法和应用。该高熵碳氮化物陶瓷复合刀具包括作为刀头的高熵碳氮化物陶瓷(Ti0.25Zr0.25Nb0.25Ta0.25)CxN1‑x，0.5≤x≤0.9和作为刀杆的WC‑Co硬质合金，该陶瓷复合刀具是先将TiC、ZrC、NbC、TaC、TiN、ZrN、NbN和TaN混合，氩气气氛下在1600～1800℃放电等离子烧结制得高熵碳氮化物陶瓷；再将高熵碳氮化物陶瓷与WC‑Co硬质合金之间涂覆CuSnTi钎料，在880～930℃焊接制得。该高熵碳氮化物陶瓷复合刀具可应用于灰铸铁、球墨铸铁等高硬度材料的连续切削。
High-entropy carbonitride ceramic composite tool with high hardness and high strength as well as preparation method and application of high-entropy carbonitride ceramic composite tool
一种高硬度和高强度的高熵碳氮化物陶瓷复合刀具及其制备方法和应用
GUO WEIMING (Autor:in) / TONG SIYUAN (Autor:in) / LUO SICHUN (Autor:in) / ZHOU YUZHANG (Autor:in) / LIN HUATAI (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
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