WC-6MoxC-0.47Cr3C2-0.28VC binderless carbide was prepared by hot pressing （1700 °C, 20 MPa）. The sample was observed and analyzed by scanning electron microscopy, energy dispersive X–ray spectroscopy and X–ra...WC-6MoxC-0.47Cr3C2-0.28VC binderless carbide was prepared by hot pressing （1700 °C, 20 MPa）. The sample was observed and analyzed by scanning electron microscopy, energy dispersive X–ray spectroscopy and X–ray diffraction. The results show that during the hot pressing process, W atoms dissolve substantially into the MoxC crystal lattices; whilst, the reverse dissolution of Mo atoms into the WC crystal lattices takes place. Consequently, the main phase and binder phase structure are formed. The phase compositions of the main phase and binder phase are a WC-based solid solution containing Mo and a Mo2C-based solid solution containing W, respectively. The isotropic dissolution and precipitation of W and Mo atoms do not result in substantial carbide coarsening. The mechanism for the densification was discussed.展开更多
随着移动互联网和大数据时代的来临,基于位置信息服务（Location Based Service,LBS）乘势而兴,已成为＂互联网＋产业＂大家庭的重量级成员。＂LBS＋生活信息服务＂的模式借助移动互联网平台以及卫星定位导航领域的合作与应用,实现生活...随着移动互联网和大数据时代的来临,基于位置信息服务（Location Based Service,LBS）乘势而兴,已成为＂互联网＋产业＂大家庭的重量级成员。＂LBS＋生活信息服务＂的模式借助移动互联网平台以及卫星定位导航领域的合作与应用,实现生活服务信息内容的增值,为用户提供更客观、更准确的本地化生活信息指南,同时也为商户提供了一个基于位置的精准营销平台。展开更多
基金Project (51074189) supported by the National Natural Science Foundation of ChinaProject (20100162110001) supported by Research Fund for the Doctoral Program of Higher Education of ChinaProject (2011BAE09B02) supported by the National Key Technology R&D Program of China
文摘WC-6MoxC-0.47Cr3C2-0.28VC binderless carbide was prepared by hot pressing （1700 °C, 20 MPa）. The sample was observed and analyzed by scanning electron microscopy, energy dispersive X–ray spectroscopy and X–ray diffraction. The results show that during the hot pressing process, W atoms dissolve substantially into the MoxC crystal lattices; whilst, the reverse dissolution of Mo atoms into the WC crystal lattices takes place. Consequently, the main phase and binder phase structure are formed. The phase compositions of the main phase and binder phase are a WC-based solid solution containing Mo and a Mo2C-based solid solution containing W, respectively. The isotropic dissolution and precipitation of W and Mo atoms do not result in substantial carbide coarsening. The mechanism for the densification was discussed.
文摘随着移动互联网和大数据时代的来临,基于位置信息服务（Location Based Service,LBS）乘势而兴,已成为＂互联网＋产业＂大家庭的重量级成员。＂LBS＋生活信息服务＂的模式借助移动互联网平台以及卫星定位导航领域的合作与应用,实现生活服务信息内容的增值,为用户提供更客观、更准确的本地化生活信息指南,同时也为商户提供了一个基于位置的精准营销平台。
