title: Materials science: when two is better than one.
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.
authors.forename: Wencai
authors.initials: W
authors.lastname: Ren
authors.forename: Hui-Ming
authors.initials: HM
authors.lastname: Cheng