The thermal expansion of erbium over a wide temperature range

A dilatometric study results on the linear thermal expansion coefficient (LTEC) of polycrystalline erbium are presented. The experimental data in the temperature range of 100–800 K are obtained. The measurements were made with an error 3%. Approximate dependencies which allow calculating the reference tables of thermal properties for the entire measurement interval are defined

The thermal expansion coefficient of Nd-Fe-B and Sm-Co permanent magnets in the region of the Curie point

A dilatometric study results on the linear thermal expansion coefficient (LTEC) of Nd-Fe-B and Sm-Co permanent magnets are presented. The experimental data in the temperature range 200–750 K and 293–1163 K, respectively, are obtained. The measurements were made with an error 3%. The character of the change of the linear thermal expansion coefficient in the vicinity of the Curie point is established. The critical exponents of the LTEC for magnetic phase transitions are defined

The thermal expansion coefficient of Nd-Fe-B and Sm-Co permanent magnets in the region of the Curie point

A dilatometric study results on the linear thermal expansion coefficient (LTEC) of Nd-Fe-B and Sm-Co permanent magnets are presented. The experimental data in the temperature range 200–750 K and 293–1163 K, respectively, are obtained. The measurements were made with an error 3%. The character of the change of the linear thermal expansion coefficient in the vicinity of the Curie point is established. The critical exponents of the LTEC for magnetic phase transitions are defined

The thermal expansion of hard magnetic materials of the Nd-Fe-B system

The results of dilatometric measurement of the thermal expansion of hard magnetic materials brands N35M, N35H and N35SH containing as a main component the crystalline phase of Nd2Fe14B type are presented. The temperature range from 200 to 750 K has been investigated by the method of dilatometry with an error of 1.5-2×10-7 K-1. The approximation dependences of the linear thermal expansion coefficient have been obtained. The character of changes of the thermal coefficient of linear expansion in the region of the Curie point has been specified, its critical indices and critical amplitudes have been defined

Thermophysical properties of polymer composite materials based on TO-29-2 epoxy binder alloyed with AIN

The results of an experimental study of the volumetric, caloric and transport properties of polymer composite materials based on the TO-29-2 grade epoxy binder alloyed with aluminum nitride (AlN) in a wide range of superconducting power equipment operating temperatures are presented. The influence of the inorganic component on the thermophysical properties of polymer composites has been established

The thermal expansion of hard magnetic materials of the Nd-Fe-B system

The results of dilatometric measurement of the thermal expansion of hard magnetic materials brands N35M, N35H and N35SH containing as a main component the crystalline phase of Nd2Fe14B type are presented. The temperature range from 200 to 750 K has been investigated by the method of dilatometry with an error of 1.5-2×10-7 K-1. The approximation dependences of the linear thermal expansion coefficient have been obtained. The character of changes of the thermal coefficient of linear expansion in the region of the Curie point has been specified, its critical indices and critical amplitudes have been defined