title: Zero thermal expansion in NaZn13-type La(Fe,Si)13 compounds.
abstract: A zero thermal expansion material in a pure form of NaZn13-type La(Fe,Si)13 was fabricated. Through optimizing the chemical composition, an isotropic zero thermal expansion material is achieved. The obtained materials exhibit a low expansion of |α| < 1.0 × 10(-6) K(-1) (α is the coefficient of linear thermal expansion) over a broad temperature range (15-150 K). The present study indicates that the thermal expansion behavior of the NaZn13-type La(Fe,Si)13 compounds depends mainly on the content of Si element. This new material is desirable in many fields of industry as a reliable and low-cost zero thermal expansion material.
authors.affiliation: State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China. huangrongjin@mail.ipc.ac.cn laifengli@mail.ipc.ac.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Rongjin
authors.initials: R
authors.lastname: Huang
authors.forename: Wen
authors.initials: W
authors.lastname: Li
authors.forename: Jie
authors.initials: J
authors.lastname: Tan
authors.forename: Yuqiang
authors.initials: Y
authors.lastname: Zhao
authors.forename: Shaopeng
authors.initials: S
authors.lastname: Li
authors.forename: Chuanjun
authors.initials: C
authors.lastname: Huang
authors.forename: Laifeng
authors.initials: L
authors.lastname: Li