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過渡族金屬氮化物顆粒復(fù)合氮化硅氮化硅陶瓷刀具的特性
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Virtues of the Silicon Nitride Ceramic Tools Reinforced by Nitride Particles
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    摘要:

    針對碳化物顆粒復(fù)合會(huì)導(dǎo)致氮化硅復(fù)合物材料相組成發(fā)生變化的缺點(diǎn),對過渡族金屬氮化物顆粒(主要是TiN)增強(qiáng)氮化硅陶瓷刀具的優(yōu)點(diǎn)進(jìn)行了全面分析,分析表明,氮化物顆粒不僅比碳化物顆粒與氮化硅有更好的相容性,而且可以固溶燒結(jié)過程中氣相里的碳和氧,因此會(huì)有效降低氮化硅基體的碳化,這為無惰性氣氛保護(hù)燒結(jié)提供了可能,另外,氮化物顆粒的引入對提高復(fù)合材料火花放電加工性及耐磨性能亦有很大幫助。

    Abstract:

    The virtues of the silicon nitride ceramic tools reinforced by transition metal nitride particles are compared with those of the carbides. It is found that the nitrides have better compatibility than the carbides when they are introduced into silicon nitride. Furthermore, because nitride particles can dissolve small amounts of carbon and oxygen, the carbonization of the silicon nitride matrix decreases, and hot pressing without an inert atmosphere is possible. In addition, electrical discharge machining and wear resistance are improved by the introduction of nitrides.

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趙振波 劉澄.過渡族金屬氮化物顆粒復(fù)合氮化硅氮化硅陶瓷刀具的特性[J].稀有金屬材料與工程,1999,(3):148~150.[Zhao Zhenbo, Liu Cheng, Zeng Zhaoqiang, HuXiaoqing, Miao Hezhuo. Virtues of the Silicon Nitride Ceramic Tools Reinforced by Nitride Particles[J]. Rare Metal Materials and Engineering,1999,(3):148~150.]
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