根据有关物质结构的一些因素如离子半径,配位数、外围电子构型、晶格能、电荷半径比等推测,可能研制出磨削某些难磨材料比镨钕刚玉更好的新刚玉磨料。在研制镨钕刚玉过程中,亦发现有另外的好苗头。另一方面,我国特产的钒钛铸铁用作机床床身导轨和其他部 According to some factors related to the material structure such as ion radius, coordination number, external electronic configuration, lattice energy, charge radius ratio and other speculation, it is possible to develop a new corundum abrasive material grinding some refractory materials better than praseodymium neodymium . In the development of praseodymium neodymium corundum process, also found another good signs. On the other hand, China’s specialty vanadium titanium cast iron used as the machine bed rails and other ministries