Together with another lanthanide gadolinium terbium was used by Geoffrey Green and coworkers in 1990 to build a dual-stage room-temperature magnetic refrigerator prototype, with gadolinium as a high-temperature stage and terbium as a low-temperature stage.
The amount of PAHs produced by spontaneous combustion of raw coal was generally higher than that of gangue, and the difference was more obvious at high-temperature stage.
The water discharging curves are obtained under different operation conditions and it is found that the temperature of the discharged water undergoes three stages: stable high-temperature stage, rapid decrease stage and stable low temperature stage, and the time durations of these stages are related with the inlet velocity.
In general, closer correspondence has been obtained for the ignition delay referred to the high-temperature stage of the process, being the cool flames phenomenon more difficult to reproduce.
The high-temperature stage of ignition establishes edge flames that have a hybrid premixed/autoignition flame structure similar to that previously observed for lifted laminar flames at similar thermochemical conditions.
One of the crystals was heated on an Olympus BX40 microscope equipped with a Linkam TS1500 high-temperature stage.
The mixture was loaded into the high-temperature stage of a Thermo Nicolet 6700 FTIR with Praying Mantis attachment.
In this paper, a cascade refrigeration system with CO2 and NH3 as working fluids in the low and high temperature stages, respectively, has been analysed.
Since this cycle has some high temperature stages, a study on these parts is essential to realize the entirety of the cycle, including the high temperature anti-corrosion equipment materials and the system to evaluate the performance of the materials.
As this cycle has some high temperature stages which indicate challenges of equipment materials, a study on these parts is essential to realize the entirety of the cycle, particularly on the development of equipment materials that may withstand the corrosion of the molten salt CuCl, which appears in a step of the Cu Cl cycle.
The former exhibits a strong temperature dependence of its optical gap while the second presents a null or moderate evolution of the positioning of its absorption band with T. This results in the generation of various reversible thermochromic effects with control of both the temperature transition and the hue in the low and high temperature stages.
