Thermal Expansion of SrF 2  at Elevated Temperatures | Zendy

Kommichau G. | Zendy; Neumann H. | Zendy; Schmitz W. | Zendy; Schumann B. | Zendy

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Thermal Expansion of SrF 2 at Elevated Temperatures

Author(s) -

Kommichau G.,

Neumann H.,

Schmitz W.,

Schumann B.

Publication year - 1986

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170211221

Subject(s) - thermal expansion , alkaline earth metal , atmospheric temperature range , lattice (music) , atom (system on chip) , thermal , chemistry , substrate (aquarium) , negative thermal expansion , analytical chemistry (journal) , materials science , thermodynamics , mineralogy , physics , composite material , alkali metal , geology , organic chemistry , chromatography , acoustics , oceanography , computer science , embedded system

The X‐ray method was used to determine the linear thermal expansion coefficient of SrF 2 in the temperature range from 301 to 1173 K. A comparison of the thermal expansion coefficients of CaF 2 , SrF 2 and BaF 2 at T > 300 K shows that the degree of lattice an–harmonicity in the alkaline earth fluorides decreases with increasing mass of the alkaline earth atom. The results for the thermal expansion of SrF 2 are used to discuss the temperature dependence of the lattice mismatch in the SrF 2 /InP film–substrate system.

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