T/CSTM 01288-2025 Astrothermal phase change materials and specific heat measurement by adiabatic calorimetric method
T/CSTM 01288-2025 Astrothermal phase change materials and specific heat measurement by adiabatic calorimetric method
Basic Information
Scope
Scope: This document describes the method of determining the specific heat capacity of aerospace phase-change materials in the temperature range of 80 K to 400 K, which is the amount of heat required to raise the temperature of a unit mass of material by 1 K. This document is applicable to the determination of the specific heat capacity of liquid-liquid, liquid-solid, and solid-solid phase-change materials with a steam pressure of less than 1×106 Pa and no chemical reaction with the container. Main technical content: This document describes the method of determining the amount of heat required to raise the temperature of a unit mass of aerospace phase-change materials by 1 K in the temperature range of 80 K to 400 K, which is the specific heat capacity determination method. This document is applicable to the determination of the specific heat capacity of liquid-liquid, liquid-solid, and solid-solid phase-change materials with a steam pressure of less than 1×106 Pa and no chemical reaction with the container.