Preparation of Dispersion-Strengthened Coppers with NbC and TaC by Mechanical Alloying
Preparation of Dispersion-Strengthened Coppers with NbC and TaC by Mechanical Alloying
复制标题
机械合金化制备 NbC 和 TaC 弥散强化铜
DOI：
10.2320/matertrans1989.32.389
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发表时间：
1991
影响因子：
1.2
通讯作者：
Y. Hashimoto
中科院分区：
文献类型：
--
作者：
Teruo Takahashi;Y. Hashimoto
为了制备弥散强化铜基合金，使用纯铜、铌、钽和石墨粉末进行机械合金化。在Cu-Nb-C和Cu-Ta-C体系中，经144.0ks机械合金化后，分别得到了Cu-Nb-C固溶体+NbC混合粉末和Cu-Ta-C固溶体+Ta+TaC混合粉末。这些粉末在873 - 1323 K的温度下在真空状态下进行热处理。在Cu-Nb-C和Cu-Ta-C体系中，C和Nb或Ta反应，导致在铜中析出非常细的NbC和TaC颗粒
To prepare a dispersion-strengthened copper-based alloy, mechanical alloying was carried out using pure copper, niobium, tantalum and graphite powders. After mechanical alloying for 144.0 ks,a Cu-Nb-C solid solution+NbC mixture powder and a Cu-Ta-C solid solution+Ta+TaC mixture powder were obtained inthe Cu-Nb-C and Cu-Ta-C systems, respectively. These powders were heat-treated in an evacuated state at temperatures from 873 to 1323 K. In the Cu-Nb-C and Cu-Ta-C systems, C and Nb or Ta reacted, resulting in precipitation of very fine NbC and TaC particles in copper